US20230167855A1 - Greasable bearing assembly - Google Patents
Greasable bearing assembly Download PDFInfo
- Publication number
- US20230167855A1 US20230167855A1 US18/160,748 US202318160748A US2023167855A1 US 20230167855 A1 US20230167855 A1 US 20230167855A1 US 202318160748 A US202318160748 A US 202318160748A US 2023167855 A1 US2023167855 A1 US 2023167855A1
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- United States
- Prior art keywords
- seal
- bearing
- roller bearing
- inner face
- ring
- Prior art date
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- Abandoned
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/303—Parts of ball or roller bearings of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2204/00—Metallic materials; Alloys
- F16C2204/10—Alloys based on copper
- F16C2204/14—Alloys based on copper with zinc as the next major constituent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/30—Fluoropolymers
- F16C2208/32—Polytetrafluorethylene [PTFE]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
Definitions
- the present disclosure relates to bearings generally, and to ball bearings such as those used for carrier bearing assemblies.
- a ball bearing is a type of rolling-element bearing that uses balls disposed between concentric rings or bearing races to maintain the separation between the races.
- the balls or rolling-elements provide for relative movement between the concentric races to support radial and axial loads while reducing rotational friction between the races by the rolling or rotation of the balls, which provides for a lower coefficient of friction than if the two races were to rotate by sliding against each other.
- FIG. 1 A shows a cut-away perspective view of a bearing, ball bearing, roller bearing, or greasable bearing 10 .
- the ball bearing 10 comprises an inner ring or inner race 12 that comprises an inner surface and an outer surface opposite the inner surface. While the bearing 10 will sometimes be referred to as a ball bearing for convenience, and not by way of limitation, a person of ordinary skill will appreciate that the ball bearing can be a roller bearing or other similar or suitable bearing.
- the inner ring 12 may be made of metal, including steel, aluminum, titanium, brass, as well as ceramic, or other suitable strong and durable material.
- the inner surface of the inner ring 12 defines an inner diameter or bore Di that can receive a shaft or rotational element, or a piece about which rotation is desired.
- the outer surface of the inner ring 12 further comprises an inner groove, track, or ring ball race 14 .
- the inner groove 14 is bordered by inner shoulders 16 .
- the inner surface of the inner ring 12 comprises bore corners 12 , which can be rounded and connect the inner diameter Di to a face 19 of the ball bearing 10 .
- the inner ring 12 is nested within, concentric with, and shares a center with an outer ring or outer race 18 .
- the outer ring or outer race 18 comprises an inner surface and an outer surface opposite the inner surface.
- the outer ring 18 may be made of metal, including steel, aluminum, titanium, brass, or other suitable strong and durable material.
- the outer surface of the outer ring 18 comprises outer diameter corners 24 .
- the outer surface of the outer ring 18 further defines an outer diameter Do that determines the areas into which the ball bearing 10 may be disposed.
- the inner surface of the outer ring 18 may comprise an outer groove, track, or ring ball race 20 .
- the outer groove 20 may be bordered by outer shoulders 22 .
- the outer groove 20 aligns with the inner groove 14 for receiving balls 28 .
- the balls, spheres, or rollers 28 may be seated within both the inner groove 14 and the outer groove 20 when the inner ring 12 is nested within the outer ring 18 . While the balls may be spherical in shape or form, they need not be, and referred to as balls for convenience, and not by way of limitation. Balls or rollers 28 , may in some instance, be cylindrical or rounded in a first direction and not rounded, curved, or designed to roll in a second or additional direction. In any event, the balls 28 may be made of metal, including steel, aluminum, titanium, brass, or other suitable strong and durable material, that may be the same material or a different material than the inner ring 12 , the outer ring 18 , or both. The balls 28 may be held in place with a desired space or separation between and among the balls 28 by the cage, retainer, or separator 26 .
- the cage 26 may be disposed or nested between, and concentric with, the inner ring 12 and the outer ring 18 . As such, the cage 26 may be smaller than the outer ring 18 and larger than the inner ring 12 .
- the cage 26 may be made of metal, including steel, aluminum, titanium, brass, or other suitable strong and durable material, including plastic, ceramic, fiber, such as fiber glass or carbon fiber, or other suitable material, which may be the same or different than the material(s) of the inner ring 12 , the outer ring 18 , and the balls 28 .
- the cage 26 may comprise any desirable number of openings 27 (as shown, e.g., in FIG. 1 B ) within the cage 26 sized, adapted, or configured to receive the balls 28 .
- the cage 26 may provide a desired spacing and maintain a desired position of the balls 28 within the inner groove 14 and the outer groove 20 .
- the openings may also allow for the balls 28 to rotate, spin, and move relative to the cage 26 within the inner groove 14 and the outer groove 20 , to facilitate the movement and rotation of the inner ring 12 and the outer ring 18 without sliding, with reduced friction, or both.
- FIG. 1 B shows an exploded view of a ball bearing 10 similar to what was shown in FIG. 1 A .
- FIG. 1 B shows another variation of the cage 26 for holding balls 28 .
- FIG. 1 B also shows ball bearing 10 can be a sealed bearing in which a first shield 32 is disposed at, near, or adjacent the face 19 of the bearing to cover and protect the cage 26 and the balls 28 from foreign debris.
- a second shield 34 is disposed at, near, or adjacent a face of the ball bearing 10 opposite the face 19 of the bearing to cover and protect the cage 26 and the balls 28 from foreign debris. Foreign debris entering the ball bearing 10 can damage or impede the relative movement of the inner ring 12 , the outer ring 18 , and the rolling of the balls 28 .
- a lubricant such as grease or oil
- a lubricant may be disposed within the bearing 10 to reduce friction and promote movement by being in contact with the inner ring 12 , the outer ring 18 , and the balls 28 , as well as between and among the spaces formed therebetween.
- Not all bearings are sealed, e.g., inside an engine where the bearing is immersed in oil, where the oil acts as the lubricant, and the bearing need not be separately sealed as the engine or other environment is sealed to prevent debris from damaging the bearing.
- Ball bearings have conventionally been disassembled, or have shields 32 and 34 removed, to have the bearing 10 repacked with grease to ensure proper lubrication to support desired performance and extend the life of the parts and bearings being used.
- Repacking a bearing with new grease may involve removing one or more of the shields 32 , 34 , such as by using a pick or razor knife. The old grease can be removed and new grease added. The one or more shields 32 , 34 can then be replaced. In other instances, new grease can be added without removing the covers or shields 32 , 34 , such as by using an injector needle.
- An aspect of this document relates to a seal for a roller bearing assembly that includes a ring-shaped main body having an axial facing inner face.
- An intake opening is disposed through the main body that extends to the inner face,
- a securing member is formed on the inner face and configured to mateably couple with a roller bearing.
- the securing member includes an upper lip and a lower lip separated by a grease channel. The upper lip and the lower lip are configured to be disposed between an inner ring and an outer ring of the roller bearing when the securing member is coupled with the roller bearing.
- Particular implementations may include one or more of the following features.
- the main body may further include a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
- the seal may be formed of Polytetrafluoroethylene (PTFE).
- PTFE Polytetrafluoroethylene
- a zerk may be included that is in fluid communication with the intake opening.
- An outflow opening may be formed in the seal opposite the intake opening to allow excess grease to exit the seal.
- the seal may be configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
- a seal for a roller bearing assembly that includes a ring-shaped main body having an axial facing inner face.
- An intake opening is disposed through the main body that extends to the inner face.
- a securing member is formed on the inner face and configured to be press fit into a roller bearing between an inner ring and an outer ring of the roller bearing.
- Particular implementations may include one or more of the following features.
- the securing member may further include a lip formed on the inner face and configured to couple with the roller bearing between the inner ring and the outer ring of the roller bearing.
- the main body may further include a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
- the seal may be formed of Polytetrafluoroethylene (PTFE).
- PTFE Polytetrafluoroethylene
- a zerk may be included that is in fluid communication with the intake opening.
- An outflow opening may be formed in the seal opposite the intake opening to allow excess grease to exit the seal.
- the seal may be configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
- Still another aspect of this document relates to a seal for a roller bearing assembly that includes a ring-shaped main body having an axial facing inner face.
- An intake opening is disposed through the main body that extends to the inner face.
- a securing member is formed on the inner face and is configured to mateably couple with a roller bearing between an inner ring and an outer ring of the roller bearing.
- Particular implementations may include one or more of the following features.
- the securing member may further include a lip formed on the inner face and configured to couple with the roller bearing between the inner ring and the outer ring of the roller bearing.
- the main body may further include a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
- the seal may be formed of Polytetrafluoroethylene (PTFE).
- PTFE Polytetrafluoroethylene
- a zerk may be included that is in fluid communication with the intake opening.
- An outflow opening may be formed in the seal opposite the intake opening to allow excess grease to exit the seal.
- the seal may be configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
- noun, term, or phrase is intended to be further characterized, specified, or narrowed in some way, then such noun, term, or phrase will expressly include additional adjectives, descriptive terms, or other modifiers in accordance with the normal precepts of English grammar. Absent the use of such adjectives, descriptive terms, or modifiers, it is the intent that such nouns, terms, or phrases be given their plain, and ordinary English meaning to those skilled in the applicable arts as set forth above.
- FIGS. 1 A and 1 B illustrate various views of conventional ball bearings as known in the art.
- FIGS. 2 A- 2 I illustrate a greasable bearing and bearing shield away from a carrier bearing assembly.
- FIGS. 3 A- 3 E illustrate various views of another embodiment of a carrier bearing assembly.
- FIG. 4 illustrates a carrier bearing assembly coupled to a drive shaft.
- FIGS. 2 A- 2 G illustrate a greasable bearing assembly 100 comprising bearing 10 and a greasable seal, greasable bearing seal, bearing shield, or greasable bearing shield 173 coupled to the bearing 10 .
- the term “greasable seal 173 ”, uses the word grease for convenience and not by way of limitation, and as such, a person of ordinary skill in the art will appreciate that any other suitable form of lubricant besides grease may also be used with greasable seal 173 . Furthermore, in some instances a grease will be the suitable lubricant, and may even be the only lubricant used or desired.
- FIG. 2 A shows a perspective view of the greasable bearing 10 and bearing shield 173 disposed away from a carrier bearing assembly 190 , which is shown in FIGS. 3 A- 3 E .
- the greasable seal 173 may be coupled, snapped, or threaded onto the bearing 10
- the conventional bearing shield 174 may be disposed adjacent the bearing 10 without being coupled, snapped, or threaded onto the bearing 10 .
- the custom bearing shield can comprise an opening or hole 40 in bearing 10 , and an opening or hole 175 in greasable seal 173 , as shown, extending through the respective pieces, to allow for a shaft 60 to pass or extend therethrough.
- the custom bearing shield 173 is shown comprising an intake, channel, shaft, or opening 176 extending from a first or outer end 176 a of the intake 176 at an outer surface or ring-shaped surface 171 of the bearing shield 173 , through the custom bearing shield 173 , to an inner or second end 176 b of the intake 176 disposed at an inner surface or ring-shaped surface 172 of the bearing shield 173 , to provide access or ingress for a lubricant, such as grease that can be injected at the zerk 170 , enter through intake 176 , and surround balls 28 within the bearing 10 .
- a lubricant such as grease that can be injected at the zerk 170
- the zerk 170 may be male or female, and the bearing may intake grease through the zerk 170 , without a zerk 170 , with needle injections, or in any other way to receive a transfer of lubricants.
- the greasable seal 173 can be made of, or include, any suitable material, such as materials similar or identical to bearing shield 174 , including metal, plastic, ceramic, fiber, or other suitable material, such as a fluoropolymer or a fluorocarbon-based polymer, such as polytetrafluoroethylene.
- FIG. 2 B shows a perspective view of the greasable bearing 10 and bearing shield 173 similar to view shown in FIG. 2 A , but as an exploded view with the bearing 10 separated from the greasable seal 173 , with the balls 28 within the bearing 10 being exposed.
- the exposed balls 28 show an area that can receive grease or other lubricant from intake 176 , that allows the bearing to receive additional lubrications without removing the bearing from an installed position, such as from within a carrier bearing assembly 190 , as shown in FIGS. 3 A- 3 E , or from on a shaft, as shown in FIG. 3 E .
- the greasable seal 173 may be capable of receiving, and may be adapted or configured to receive, grease through intake 176 such that the greaseable seal 173 fills with grease and also provides a pathway, conduit, or passage for the grease to pass from the greasable seal 173 to the bearing 10 such that the grease is disposed between the inner ring 12 and the outer ring 18 , and surrounds or contacts the balls 28 , or rollers, and the cage 26 .
- the greasable seal 173 may also be toroidal in shape to match the curved or ring-shaped hoops of the bearing 10 and the opening 27 . In some instances, the greasable seal 173 can be snapped, press-fit, threaded, or otherwise desirable coupled onto the bearing 10 .
- FIG. 2 C shows a profile view, in the z-x plane, of the greasable bearing 10 and bearing shield 173 coupled together, similar to what was shown in the perspective view of FIG. 2 A .
- the outer face 167 of the bearing shield 173 is shown oriented towards the viewer, with a portion of the bearing 10 visible within the opening 40 of the bearing 10 .
- the section line 2 D- 2 D shows the section line along which the view of FIG. 2 D is taken.
- FIG. 2 D shows a cross-sectional profile view, in the z-y plane, of the greasable bearing 10 and bearing shield 173 coupled together, as taken along section line 2 D- 2 D shown in FIG. 2 C .
- FIG. 2 G similar to FIG. 2 D , also shows a cross-sectional profile view of the greasable bearing shield or greasable seal 173 , but without being coupled to the bearing 10 .
- the greasable seal 173 may comprise a thickness (Ts) that is measured in a direction perpendicular to a radial direction (r) of the greasable seal 173 , the thickness Ts being in a range of 0.5-1.1 times a thickness Tr of the outer ring 18 , or in a range of 5 mm-15 mm.
- FIGS. 2 D and 2 G show the intake 176 extending from an outer surface 171 of the bearing shield 173 to the inner face 168 of greasable seal 173 , adjacent the balls 28 within the bearing 10 , or both.
- the egress, inner, or second end 176 b of the intake opening 176 may be formed at the inner face 168 of greasable seal 173 .
- the ingress, outer, or first end 176 a of the intake 176 may be positioned at, and extend from, the outer surface 171 of the bearing shield 173 to the ball bearings 28 within the bearing 10 .
- the ingress 176 a of the intake 176 may extend to, be positioned at, or be formed in or through, the outer face 167 of the greasable seal 173 .
- the ingress 176 a When the ingress 176 a is formed in the outer face 167 the ingress may be opposite the egress, inner, or second end 176 b of the intake opening 176 .
- the egress 176 b of the intake opening 176 may be formed at the inner face 168 of greasable seal 173 .
- the attachment between the greasable bearing 10 and bearing shield 173 may be a press-fit or friction fit attachment that is sufficiently tight and strong to prevent grease or lubricant being applied to the bearing 10 , including around balls 28 , to exit at an interface between the bearing 10 and the bearing shield 173 .
- the bearing shield 173 With a press-fit or friction fit attachment between the bearing 10 and bearing shield 173 , the bearing shield 173 may be rotated, once attached, to ensure the ingress 176 a is at a desired position, and aligns with desired features, such as a grease zerk 170 .
- FIG. 2 E shows a perspective view of the bearing shield 173 detached, or away, from the bearing 10 , and opposite the view shown in FIGS. 2 A and 2 B .
- FIG. 2 E shows the inner face 168 of the bearing shield 173 exposed and oriented towards the reader, rather than the outer face 167 of the bearing shield 173 being exposed and oriented towards the reader as shown in FIGS. 2 A and 2 B .
- the view of FIG. 2 E also shows a securing member, snap, threading, or lip 177 formed as part of the bearing shield 173 for coupling the bearing shield 173 to the bearing 10 .
- the lip or lips 177 may be formed comprising a first, outer, or upper lip 177 a that is disposed a first distance from a radial center C of the bearing shield 173 .
- the lip or lips 177 may also comprise a second, inner, or lower lip 177 b that is disposed a second distance, less than the first distance, from the radial center C of the bearing shield 173 .
- the lips 177 may be a part of the inner face 168 and be positioned farther from the outer face 167 than the rest of the inner face 168 , so as to protrude away from the main body of the greasable seal 173 and to slide, fit, or be disposed within a receiving portion 30 of the bearing 10 .
- the receiving portion 30 of the bearing 10 may comprise a portion below the outer ring 18 (e.g., nearer the center of the bearing opening 40 that the outer ring 18 ) and above the inner ring 12 (e.g., farther the center of the bearing opening 40 than the inner ring 12 ).
- the receiving portion 30 of bearing 10 may be for receiving conventional shields, such as first shield or seal 32 and second shield or seal 34 , as well as receive the greaseable seal 173 , such as when the greasable seal 173 is made to fit with bearing 10 .
- a lubricant or grease channel 178 may be disposed between, bordered by, and formed with respect to the lips 177 .
- the lubricant or grease can enter the greasable seal 173 through the ingress 176 a and exit the egress 176 b after passing through the intake 176 .
- the lubricant or grease may travel in, along, and through the channel 178 and adjacent, around, and in contact with the inner groove 14 and inner surface of the inner ring 12 , the outer groove 20 and the inner surface of the outer ring 18 , the cage 26 , and the balls 28 of the bearing 10 .
- a second slot, outflow, lubricant outflow, channel, shaft, or opening 179 may be formed in the bearing shield 173 similar to the intake 176 .
- the outflow 179 may be positioned opposite the intake 176 so that the lubricant will travel an entire course of the channel 178 before arriving at the outflow 179 .
- the channel 178 and the outflow 179 may be sized such that the lubricant, when following the path of least resistance, will contact, coat, or both contact and coat at least a portion and perhaps all or substantially all of the inner groove 14 and inner surface of the inner ring 12 , the outer groove 20 and the inner surface of the outer ring 18 , the cage 26 , and the balls 28 of the bearing 10 , before excess lubricant or grease begins to exit the outflow 179 .
- the lubricant exiting the outflow will indicate the bearing is full of lubricant, and no additional lubricant need be added at the intake at the time.
- the outflow may be covered or plugged to fill any voids or areas without lubricant within the bearing 10 and seal 173 .
- the bearing shield 173 may be made with only one intake 176 and without any outflow 179 , such that excess lubricant, such as grease, will exit back out through the intake 176 .
- the connection or attachment of the greasable seal 173 to the bearing 173 such as by a press fitting or other suitable fitting such as with threads, twisting, or screwing, may be done with sufficient force so as to prevent detachment of the bearing shield 173 and the bearing 10 with respect to each other when excess lubricant or grease enters and exits the bearing shield 173 and the bearing 10 .
- FIGS. 2 F and 2 G are similar to FIGS. 2 C and 2 D , respectively, but show the bearing shield 173 detached from, and without, the bearing 10 .
- FIG. 2 F shows a front profile view of the bearing shield 173 in the z-x plane with outer face 167 of the greasable seal 173 oriented towards the viewer.
- FIG. 2 G shows a cross-sectional profile view of the bearing shield 173 taken along the section line 2 G- 2 G shown in FIG. 2 F .
- the shield seal 173 may be releasably coupled to the bearing 10 , such as by having the lips 177 snap into the receiving portion 30 of the bearing 10 .
- the greasable seal 173 may facilitate and allow for the bearing 10 to have grease added (be greasable) without removing the greasable seal 173 or other shields or seals, such as shields or seals 32 , 34 , and without exposing the balls 28 or repacking the bearing 10 .
- the greasable seal 173 may facilitate and allow for the bearing 10 to be grease-able and to have grease added the bearing 10 when the bearing 10 is within the carrier bearing assembly 190 (as shown and discussed with respect to FIGS. 3 A- 3 E ).
- lubrication or greasing of the bearing 10 may occur with a snap ring or retaining ring 159 in place, and with the bearing 10 , and clamp collars, on the shaft 60 as well.
- the bearing 10 can conveniently provide for lubrication and improved performance of the bearing 10 without unpacking and repacking the bearing 10 and without a need to remove bearing 10 from the carrier bearing assembly 190 , or remove the carrier bearing assembly 190 from a vehicle frame.
- FIG. 2 H shows a profile view of the greasable seal 173 in the z-x plane detached or separate from the bearing 10 , similar to the view shown in FIG. 2 F , but with the view of FIG. 2 H showing the inner face 168 of the greasable seal 173 oriented towards the viewer.
- FIG. 21 shows a cross-sectional profile view, in the y-z plane, of a portion of the greasable seal 173 taken along the section line 21 - 21 shown in FIG. 2 E .
- FIG. 21 shows the lips 177 a and 177 b forming or defining the grease channel 178 , and what the intake 176 may look like, in cross sectional view, if present in the cross-sectional area shown in FIG. 21 .
- the intake opening 176 may be disposed through the greasable seal 173 and extend from the outer ring-shaped surface 171 to the inner face 168 .
- the intake opening 176 may be disposed through the greasable seal and extend from the outer face 167 to the inner face 168 .
- the lip 177 may comprise a first, outer, or upper lip 177 a at the inner face 168 that mateably couples adjacent the outer ring 18 .
- the lip 177 may also comprise a second, inner, or lower lip 177 b at the inner face 168 that mateably couples adjacent the inner ring 12 .
- the lip 177 may be press-fit between the inner ring 12 and the outer ring 18 .
- FIGS. 3 A- 3 E illustrate various views of an embodiment of the carrier bearing assembly 190 .
- the carrier bearing assembly 190 includes a height H that extends in a vertical or z-direction, a width W that extends in a horizontal, lateral, or x-direction such as generally between left and right sides of the vehicle or in a direction extending between doors of the vehicle, and a length L that is perpendicular to the height and width and extends in a y-direction or along a length of the vehicle, such as between the front and back of the vehicle.
- the carrier bearing assembly 190 includes a bracket 150 that can be constructed from a strong, durable, and tough material such as metal, including steel, aluminum, aluminum composite, and other suitable materials.
- the bracket 150 can be formed of one or more pieces, and in some instances, can be formed of a single, unitary, or modular piece.
- the bracket 150 can be cast, formed, stamped, machined, carved, or formed in any other suitable way.
- the bracket 150 can be formed of a single material or multiple materials, including alloys, and with a desired finish, plating, or treatment.
- the bracket 150 can be coupled, attached, or bolted to the frame 64 of a vehicle or UTV, such as the Polaris RZR 1000 , using fastener members 119 A and 119 B, which can comprise bolts 120 and bolt holes 121 as well as washers 123 , bushing pairs 124 / 125 , and bushings 126 as shown in FIG. 3 A .
- fastener members 119 A and 119 B which can comprise bolts 120 and bolt holes 121 as well as washers 123 , bushing pairs 124 / 125 , and bushings 126 as shown in FIG. 3 A .
- the bolts 120 A and 120 B can disposed within, or screwed into, the original carrier bearing mounting holes so that the position of the original carrier bearing and the new carrier bearing 190 is the same with respect to the frame 64 of the vehicle and the driveshaft of the vehicle.
- the carrier bearing assembly 190 can include a bearing 10 , and a driveshaft opening or hole 40 in the bearing 10 , through which the driveshaft 60
- the fastener members or the mounting structures 119 can be used to couple, secure, or bolt the carrier bearing assembly 190 to the frame 64 and can comprise any desirable mechanical or chemical fasteners including nuts 127 and bolts 120 , rods, pegs, clamps, welding, rivets, pins, screws, adhesives, or other suitable devices, such as bolts 120 A, 120 B, which can be at least one bolt or at least two bolts. In some instances, two bolts 120 A and 120 B can be used, and the bolts can extend through the bracket 150 from a top side 150 c to a bottom side 150 d of the bracket 150 (or in some instances from the bottom side to the top side) so as to attach the bracket 150 to corresponding mounting holes 66 A, 66 B in the frame 64 .
- the frame 64 can comprise one or more bolts, threaded portions, or other structure that extend from the frame 64 into the bolt holes 121 A, 121 B in the bracket 150 .
- one or more bolts, threaded portions, or other structure can be integrally formed or permanently attached to the body 150 without using bolt holes 121 A, 121 B, or without having bolt holes 121 A, 121 B formed in the body 150 , so that the bolts, threaded portions, or other structures extend from the body 150 and can be coupled to the holes 66 A and 66 B in the frame 60 .
- the body 150 may be attached to the mounting holes 66 A, 66 B with the original bolts 120 A, 120 B used by an original or OEM carrier bearing, thereby eliminating additional time and expense that could be incurred with the use of other arrangements or fastener members 119 , as described above.
- the bracket 150 can be mounted to the vehicle chassis 64 in a method that allows a small amount of compliance at each fastening location (both bolts 120 A, 120 B) to account for manufacturing variation in the OEM vehicle frame 64 , or different vehicle frames.
- the carrier bearing assembly 190 may comprise an auto set angle between the bearing 10 and the bracket 150 , or between the bearing 10 within the upper bracket 150 A and the lower bracket 150 C, or between the bearing 10 and the frame 64 , the mounting holes 66 , or the shaft 60 .
- FIG. 3 A shows an exploded perspective view of the carrier bearing assembly 190 , with the front face 151 a oriented toward the viewer, and with the upper bracket component 150 A disposed above the lower bracket component 150 B to be rigidly coupled to the lower bracket 150 B, such as with mechanical fasteners or threaded bolts 152 , as also shown in FIGS. 3 B- 3 E .
- the openings through which bolts 152 , or bolts 127 , pass may be slotted, elongate, curved, or otherwise allow for relative movement and adjustment or automatically setting (auto set) of the bearing 10 and the bracket 150 , or between the bearing 10 within the upper bracket 150 A and the lower bracket 150 C, or between the bearing 10 and the frame 64 , the mounting holes 66 , or the shaft 60 .
- Overall dimensions of the carrier bearing 190 can be similar or identical to those discussed for similar carrier bearings discussed in the matters to which priority is claimed, and which are incorporated by reference herein.
- FIG. 3 A also shows the first end 150 a and the second 150 b of the lower bracket component 150 B optionally having different heights, while in other embodiments, the heights of the first end 150 a and the second end 150 b can be of the same height.
- the bracket 150 can comprise busing pairs 124 A/ 124 C and 124 B/ 124 D that may provide additional compliance between the bracket 150 and the vehicle frame 64 to account for manufacture variation and vibration.
- the bushings or stepped bushings 124 may be constructed of vibration absorbing material such as rubber.
- the bushings 124 A and 124 B can be used in isolation, without a corresponding bushing pair such as 124 C and 124 D, respectively.
- the carrier bearing assembly 190 can also optionally comprise washers 123 A and 123 B.
- bearing 10 when the seal is coupled to bearings 10 and in operation, including when operating or positioned in out-of-the-way or difficult to access spaces such as disposed within carrier bearing assembly 190 , bearing 10 may still be easily greased. Conventionally, bearing 10 would need to be removed from its operating or out-of-the-way space to be greased and be disassembled, such as by removing shields 32 and 34 , to have the bearing 10 repacked with grease to ensure proper lubrication to support desired performance and extend the life of the bearing 10 and its parts, such as cage 26 and balls 28 .
- repacking the bearing 10 with new grease may involve removing one or more of the shields 32 , 34 , such as by using a pick or razor knife before adding new grease, removing old grease, or both.
- an injector needle may be used to inject grease without removing the covers or shields 32 , 34 .
- the process of adding grease to extend the life and improve the functionality of the bearing 10 can damage the one or more shields 32 , 34 , and at a minimum, require additional time and labor to access and grease the bearing.
- the bearing 10 can be greased by supplying grease through the zerk, grease fitting, or grease nipple 170 , which will allow the grease to pass from the zerk 170 , through the intake opening 176 , and extend into the bearing 10 and around the cage 26 and balls 28 , using, e.g., a grease gun.
- the bearing 10 with the greasable seal 173 may be greased while in use, such that the bearing need not be removed or disassembled to be greased.
- the greasable seal 173 and the intake opening 176 may comprise and alignment that may remained fixed with respect to the zerk 170 and without rotating while the inner ring 12 is free to move with the shaft 60 disposed within the opening 40 .
- Undesired grease, debris, and fluids such as water, may be prevented from entering and exiting through the opening 176 by a ball and spring within the zerk 170 , or by the bearing 10 being filled with a sufficient volume of grease or lubricant or sufficient viscosity.
- the second opening or outflow 179 is present in the greasable seal 173 , undesired debris or fluid may similarly be prevented from entering or exiting the outflow 179 with a sufficient volume of grease or lubricant or sufficient viscosity.
- greasing and operation of the bearing 10 including within or without the carrier bearing assembly 190 can be facilitated by greasable seals 173 .
- FIG. 3 B shows an example of a non-exploded view of the carrier bearing assembly 190 , similar to the view of the carrier bearing 190 shown in FIG. 3 A .
- FIG. 3 B shows greasable seal 173 disposed against or adjacent a side of bearing 10 when the bearing 10 and the bearing shield 174 opposite the greasable seal 173 are disposed within the opening 155 in the bracket 150 .
- the bearing shield 174 can be made of metal, rubber, or other suitable material, and can keep trash, foreign debris, and undesired materials from contacting, contaminating, or harming the bearing 10 , but without the added functionality of greasable seal 173 , that allows for greasing or adding lubricant to the bearing 10 while the greasable seal 173 is mateably coupled to the bearing 10 .
- FIG. 3 C shows an example of a non-exploded view of the carrier bearing assembly 190 , similar to the view of the carrier bearing 190 shown in FIG. 3 B , but with the back 151 b of the bracket 150 or the carrier bearing assembly 190 oriented towards the viewer instead of the front 151 a oriented towards the viewer.
- FIG. 3 D shows a rear profile view of the carrier bearing assembly 190 similar to the perspective view of FIG. 3 C .
- the curvature of sides of the upper integrally formed or machined bracket component 150 A are shown, in which the sides of the upper component 150 A are vertical.
- FIG. 3 D shows the zerk 170 disposed towards the second end 150 b of the bracket 150
- the zerk 170 can also be disposed toward the first end 150 of the bracket 150 .
- the zerk 170 may be disposed at any desirable location along the bracket 150 , whether towards the first end 150 a or the second end 150 b.
- FIG. 3 E shows a sectional view of the carrier-bearing 190 taken along the section-line 3 E- 3 E shown in FIG. 3 D .
- FIG. 3 E also includes a portion of a drive shaft 60 disposed in the opening 155 of the carrier-bearing 190 .
- FIG. 4 shows a carrier bearing assembly, such as carrier bearing assembly 190 , that is situated on the drive shaft 60 , which may include one or more u-joints 62 .
- the carrier bearing assembly 190 can then be fastened or bolted to the frame 64 of the UTV, with the openings or bolt holes 121 A, 121 B aligned with the openings 66 A, 66 B in the frame 64 .
- the alignment of the openings or bolt holes 121 A, 121 B will be directly aligned with the openings 66 A, 66 B without an intermediary member or adapter.
- one or more intervening members or adapters may be used to adapt or align the openings or bolt holes 121 A, 121 B with the openings 66 A, 66 B.
- the openings or bolt holes 121 A, 121 B can be aligned with new or custom openings formed in the frame 64 , rather than relying on one or more of the original openings 66 A, 66 B in the frame 64 .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A seal for a roller bearing assembly includes a ring-shaped main body having an axial facing inner face. An intake opening is disposed through the main body that extends to the inner face. A securing member is formed on the inner face and is configured to mateably couple with a roller bearing between an inner ring and an outer ring of the roller bearing.
Description
- This application claims priority to, and is a continuation of, U.S. patent application Ser. No. 17/223,564 filed Apr. 6, 2021, issued as U.S. Pat. No. 11,566,667, which application claims priority to, and is a continuation of, U.S. patent application Ser. No. 16/676,294 filed Nov. 6, 2019, issued as U.S. Pat. No. 10,968,953, which application claims priority to, and is a continuation-in-part of, U.S. patent application Ser. No. 15/866,219, filed Jan. 9, 2018, issued as U.S. Pat. No. 10,471,825, which application claims priority to, and is a continuation-in-part of, U.S. patent application Ser. No. 15/449,483, filed Mar. 3, 2017, issued as U.S. Pat. No. 9,862,269, which application claims priority to, and is a continuation-in-part of, U.S. patent application Ser. No. 14/952,741, filed Nov. 25, 2015, issued as U.S. Pat. No. 9,956,872, the entirety of the disclosures of which are hereby incorporated herein by this reference.
- The present disclosure relates to bearings generally, and to ball bearings such as those used for carrier bearing assemblies.
- A ball bearing is a type of rolling-element bearing that uses balls disposed between concentric rings or bearing races to maintain the separation between the races. The balls or rolling-elements provide for relative movement between the concentric races to support radial and axial loads while reducing rotational friction between the races by the rolling or rotation of the balls, which provides for a lower coefficient of friction than if the two races were to rotate by sliding against each other.
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FIG. 1A shows a cut-away perspective view of a bearing, ball bearing, roller bearing, or greasable bearing 10. The ball bearing 10 comprises an inner ring orinner race 12 that comprises an inner surface and an outer surface opposite the inner surface. While the bearing 10 will sometimes be referred to as a ball bearing for convenience, and not by way of limitation, a person of ordinary skill will appreciate that the ball bearing can be a roller bearing or other similar or suitable bearing. Theinner ring 12 may be made of metal, including steel, aluminum, titanium, brass, as well as ceramic, or other suitable strong and durable material. The inner surface of theinner ring 12 defines an inner diameter or bore Di that can receive a shaft or rotational element, or a piece about which rotation is desired. The outer surface of theinner ring 12 further comprises an inner groove, track, orring ball race 14. Theinner groove 14 is bordered byinner shoulders 16. The inner surface of theinner ring 12 comprisesbore corners 12, which can be rounded and connect the inner diameter Di to aface 19 of the ball bearing 10. Theinner ring 12 is nested within, concentric with, and shares a center with an outer ring orouter race 18. - The outer ring or
outer race 18 comprises an inner surface and an outer surface opposite the inner surface. Theouter ring 18 may be made of metal, including steel, aluminum, titanium, brass, or other suitable strong and durable material. The outer surface of theouter ring 18 comprisesouter diameter corners 24. The outer surface of theouter ring 18 further defines an outer diameter Do that determines the areas into which the ball bearing 10 may be disposed. The inner surface of theouter ring 18 may comprise an outer groove, track, orring ball race 20. Theouter groove 20 may be bordered byouter shoulders 22. Theouter groove 20 aligns with theinner groove 14 for receivingballs 28. - The balls, spheres, or
rollers 28 may be seated within both theinner groove 14 and theouter groove 20 when theinner ring 12 is nested within theouter ring 18. While the balls may be spherical in shape or form, they need not be, and referred to as balls for convenience, and not by way of limitation. Balls orrollers 28, may in some instance, be cylindrical or rounded in a first direction and not rounded, curved, or designed to roll in a second or additional direction. In any event, theballs 28 may be made of metal, including steel, aluminum, titanium, brass, or other suitable strong and durable material, that may be the same material or a different material than theinner ring 12, theouter ring 18, or both. Theballs 28 may be held in place with a desired space or separation between and among theballs 28 by the cage, retainer, orseparator 26. - The
cage 26 may be disposed or nested between, and concentric with, theinner ring 12 and theouter ring 18. As such, thecage 26 may be smaller than theouter ring 18 and larger than theinner ring 12. Thecage 26 may be made of metal, including steel, aluminum, titanium, brass, or other suitable strong and durable material, including plastic, ceramic, fiber, such as fiber glass or carbon fiber, or other suitable material, which may be the same or different than the material(s) of theinner ring 12, theouter ring 18, and theballs 28. Thecage 26 may comprise any desirable number of openings 27 (as shown, e.g., inFIG. 1B ) within thecage 26 sized, adapted, or configured to receive theballs 28. Thecage 26 may provide a desired spacing and maintain a desired position of theballs 28 within theinner groove 14 and theouter groove 20. The openings may also allow for theballs 28 to rotate, spin, and move relative to thecage 26 within theinner groove 14 and theouter groove 20, to facilitate the movement and rotation of theinner ring 12 and theouter ring 18 without sliding, with reduced friction, or both. -
FIG. 1B shows an exploded view of a ball bearing 10 similar to what was shown inFIG. 1A .FIG. 1B shows another variation of thecage 26 forholding balls 28.FIG. 1B also shows ball bearing 10 can be a sealed bearing in which afirst shield 32 is disposed at, near, or adjacent theface 19 of the bearing to cover and protect thecage 26 and theballs 28 from foreign debris. Asecond shield 34 is disposed at, near, or adjacent a face of the ball bearing 10 opposite theface 19 of the bearing to cover and protect thecage 26 and theballs 28 from foreign debris. Foreign debris entering the ball bearing 10 can damage or impede the relative movement of theinner ring 12, theouter ring 18, and the rolling of theballs 28. - Additionally, a lubricant, such as grease or oil, may be disposed within the
bearing 10 to reduce friction and promote movement by being in contact with theinner ring 12, theouter ring 18, and theballs 28, as well as between and among the spaces formed therebetween. Not all bearings are sealed, e.g., inside an engine where the bearing is immersed in oil, where the oil acts as the lubricant, and the bearing need not be separately sealed as the engine or other environment is sealed to prevent debris from damaging the bearing. - When a bearing is not in oil and is subject to foreign debris, sealed bearings are often used to prevent foreign debris from getting into the bearing. After a time, the lubricant or grease within the
bearing 10 may begin to lose effectiveness and need to be replaced. Ball bearings have conventionally been disassembled, or haveshields bearing 10 repacked with grease to ensure proper lubrication to support desired performance and extend the life of the parts and bearings being used. Repacking a bearing with new grease may involve removing one or more of theshields more shields shields - The following and other aspects, features, and advantages will be apparent to those of ordinary skill in the art from the specification, drawings, and the claims.
- An aspect of this document relates to a seal for a roller bearing assembly that includes a ring-shaped main body having an axial facing inner face. An intake opening is disposed through the main body that extends to the inner face, A securing member is formed on the inner face and configured to mateably couple with a roller bearing. The securing member includes an upper lip and a lower lip separated by a grease channel. The upper lip and the lower lip are configured to be disposed between an inner ring and an outer ring of the roller bearing when the securing member is coupled with the roller bearing.
- Particular implementations may include one or more of the following features.
- The main body may further include a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
- The seal may be formed of Polytetrafluoroethylene (PTFE).
- A zerk may be included that is in fluid communication with the intake opening.
- An outflow opening may be formed in the seal opposite the intake opening to allow excess grease to exit the seal.
- The seal may be configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
- Another aspect of this document relates to a seal for a roller bearing assembly that includes a ring-shaped main body having an axial facing inner face. An intake opening is disposed through the main body that extends to the inner face. A securing member is formed on the inner face and configured to be press fit into a roller bearing between an inner ring and an outer ring of the roller bearing.
- Particular implementations may include one or more of the following features.
- The securing member may further include a lip formed on the inner face and configured to couple with the roller bearing between the inner ring and the outer ring of the roller bearing.
- The main body may further include a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
- The seal may be formed of Polytetrafluoroethylene (PTFE).
- A zerk may be included that is in fluid communication with the intake opening.
- An outflow opening may be formed in the seal opposite the intake opening to allow excess grease to exit the seal.
- The seal may be configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
- Still another aspect of this document relates to a seal for a roller bearing assembly that includes a ring-shaped main body having an axial facing inner face. An intake opening is disposed through the main body that extends to the inner face. A securing member is formed on the inner face and is configured to mateably couple with a roller bearing between an inner ring and an outer ring of the roller bearing.
- Particular implementations may include one or more of the following features.
- The securing member may further include a lip formed on the inner face and configured to couple with the roller bearing between the inner ring and the outer ring of the roller bearing.
- The main body may further include a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
- The seal may be formed of Polytetrafluoroethylene (PTFE).
- A zerk may be included that is in fluid communication with the intake opening.
- An outflow opening may be formed in the seal opposite the intake opening to allow excess grease to exit the seal.
- The seal may be configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
- Unless specifically noted, it is intended that the words and phrases in the specification and the claims be given their plain, ordinary, and accustomed meaning to those of ordinary skill in the applicable arts. The inventors are fully aware that they can be their own lexicographers if desired. The inventors expressly elect, as their own lexicographers, to use only the plain and ordinary meaning of terms in the specification and claims unless they clearly state otherwise and then further, expressly set forth the “special” definition of that term and explain how it differs from the plain and ordinary meaning. Absent such clear statements of intent to apply a “special” definition, it is the inventors' intent and desire that the simple, plain and ordinary meaning to the terms be applied to the interpretation of the specification and claims.
- The inventors are also aware of the normal precepts of English grammar. Thus, if a noun, term, or phrase is intended to be further characterized, specified, or narrowed in some way, then such noun, term, or phrase will expressly include additional adjectives, descriptive terms, or other modifiers in accordance with the normal precepts of English grammar. Absent the use of such adjectives, descriptive terms, or modifiers, it is the intent that such nouns, terms, or phrases be given their plain, and ordinary English meaning to those skilled in the applicable arts as set forth above.
- Further, the inventors are fully informed of the standards and application of the special provisions of 35 U.S.C. § 112(f). Thus, the use of the words “function,” “means” or “step” in the Detailed Description or Description of the Drawings or claims is not intended to somehow indicate a desire to invoke the special provisions of 35 U.S.C. § 112(f), to define the invention. To the contrary, if the provisions of 35 U.S.C. § 112(f) are sought to be invoked to define the inventions, the claims will specifically and expressly state the exact phrases “means for” or “step for”, and will also recite the word “function” (i.e., will state “means for performing the function of [insert function]”), without also reciting in such phrases any structure, material or act in support of the function. Thus, even when the claims recite a “means for performing the function of . . . ” or “step for performing the function of . . . ,” if the claims also recite any structure, material or acts in support of that means or step, or that perform the recited function, then it is the clear intention of the inventors not to invoke the provisions of 35 U.S.C. § 112(f). Moreover, even if the provisions of 35 U.S.C. § 112(f) are invoked to define the claimed aspects, it is intended that these aspects not be limited only to the specific structure, material or acts that are described in the preferred implementations, but in addition, include any and all structures, materials or acts that perform the claimed function as described in alternative implementations or forms of the disclosure, or that are well known present or later-developed, equivalent structures, material or acts for performing the claimed function.
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FIGS. 1A and 1B illustrate various views of conventional ball bearings as known in the art. -
FIGS. 2A-2I illustrate a greasable bearing and bearing shield away from a carrier bearing assembly. -
FIGS. 3A-3E illustrate various views of another embodiment of a carrier bearing assembly. -
FIG. 4 illustrates a carrier bearing assembly coupled to a drive shaft. - This disclosure, its aspects and implementations, are not limited to the specific material types, or other system component examples, or methods disclosed herein. Many additional components, manufacturing and assembly procedures known in the art consistent with its manufacture are contemplated for use with particular implementations from this disclosure. Accordingly, for example, although particular implementations are disclosed, such implementations and implementing components may comprise any components, models, types, materials, versions, quantities, and/or the like as is known in the art for such systems and implementing components, consistent with the intended operation.
- The word “exemplary,” “example,” or various forms thereof are used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” or as an “example” is not necessarily to be construed as preferred or advantageous over other aspects or designs. Furthermore, examples are provided solely for purposes of clarity and understanding and are not meant to limit or restrict the disclosed subject matter or relevant portions of this disclosure in any manner. It is to be appreciated that a myriad of additional or alternate examples of varying scope could have been presented, but have been omitted for purposes of brevity.
- While this disclosure includes a number of embodiments in different forms, there is shown in the drawings and will herein be described in detail, particular embodiments. As such, the disclosure is presented with the understanding that the disclosure is to be considered as an exemplification of the principles of the disclosed structures, methods, and systems, and is not intended to limit the broad aspect of the disclosed concepts to the embodiments illustrated.
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FIGS. 2A-2G illustrate agreasable bearing assembly 100 comprisingbearing 10 and a greasable seal, greasable bearing seal, bearing shield, orgreasable bearing shield 173 coupled to thebearing 10. The term “greasable seal 173”, uses the word grease for convenience and not by way of limitation, and as such, a person of ordinary skill in the art will appreciate that any other suitable form of lubricant besides grease may also be used withgreasable seal 173. Furthermore, in some instances a grease will be the suitable lubricant, and may even be the only lubricant used or desired. -
FIG. 2A shows a perspective view of the greasable bearing 10 andbearing shield 173 disposed away from acarrier bearing assembly 190, which is shown inFIGS. 3A-3E . In some instances, thegreasable seal 173 may be coupled, snapped, or threaded onto thebearing 10, while theconventional bearing shield 174 may be disposed adjacent thebearing 10 without being coupled, snapped, or threaded onto thebearing 10. When acustom bearing shield 173 is used, the custom bearing shield can comprise an opening orhole 40 in bearing 10, and an opening orhole 175 ingreasable seal 173, as shown, extending through the respective pieces, to allow for ashaft 60 to pass or extend therethrough. Thecustom bearing shield 173 is shown comprising an intake, channel, shaft, or opening 176 extending from a first orouter end 176 a of theintake 176 at an outer surface or ring-shapedsurface 171 of thebearing shield 173, through thecustom bearing shield 173, to an inner orsecond end 176 b of theintake 176 disposed at an inner surface or ring-shapedsurface 172 of thebearing shield 173, to provide access or ingress for a lubricant, such as grease that can be injected at thezerk 170, enter throughintake 176, and surroundballs 28 within thebearing 10. Thezerk 170 may be male or female, and the bearing may intake grease through thezerk 170, without azerk 170, with needle injections, or in any other way to receive a transfer of lubricants. Thegreasable seal 173 can be made of, or include, any suitable material, such as materials similar or identical to bearingshield 174, including metal, plastic, ceramic, fiber, or other suitable material, such as a fluoropolymer or a fluorocarbon-based polymer, such as polytetrafluoroethylene. -
FIG. 2B shows a perspective view of the greasable bearing 10 andbearing shield 173 similar to view shown inFIG. 2A , but as an exploded view with the bearing 10 separated from thegreasable seal 173, with theballs 28 within thebearing 10 being exposed. The exposedballs 28 show an area that can receive grease or other lubricant fromintake 176, that allows the bearing to receive additional lubrications without removing the bearing from an installed position, such as from within acarrier bearing assembly 190, as shown inFIGS. 3A-3E , or from on a shaft, as shown inFIG. 3E . - The
greasable seal 173 may be capable of receiving, and may be adapted or configured to receive, grease throughintake 176 such that thegreaseable seal 173 fills with grease and also provides a pathway, conduit, or passage for the grease to pass from thegreasable seal 173 to thebearing 10 such that the grease is disposed between theinner ring 12 and theouter ring 18, and surrounds or contacts theballs 28, or rollers, and thecage 26. Thegreasable seal 173 may also be toroidal in shape to match the curved or ring-shaped hoops of thebearing 10 and theopening 27. In some instances, thegreasable seal 173 can be snapped, press-fit, threaded, or otherwise desirable coupled onto thebearing 10. -
FIG. 2C shows a profile view, in the z-x plane, of the greasable bearing 10 andbearing shield 173 coupled together, similar to what was shown in the perspective view ofFIG. 2A . InFIG. 2C , theouter face 167 of thebearing shield 173 is shown oriented towards the viewer, with a portion of the bearing 10 visible within theopening 40 of thebearing 10. Thesection line 2D-2D shows the section line along which the view ofFIG. 2D is taken. -
FIG. 2D shows a cross-sectional profile view, in the z-y plane, of the greasable bearing 10 andbearing shield 173 coupled together, as taken alongsection line 2D-2D shown inFIG. 2C .FIG. 2G , similar toFIG. 2D , also shows a cross-sectional profile view of the greasable bearing shield orgreasable seal 173, but without being coupled to thebearing 10. Thegreasable seal 173 may comprise a thickness (Ts) that is measured in a direction perpendicular to a radial direction (r) of thegreasable seal 173, the thickness Ts being in a range of 0.5-1.1 times a thickness Tr of theouter ring 18, or in a range of 5 mm-15 mm. - In either event,
FIGS. 2D and 2G show theintake 176 extending from anouter surface 171 of thebearing shield 173 to theinner face 168 ofgreasable seal 173, adjacent theballs 28 within thebearing 10, or both. The egress, inner, orsecond end 176 b of theintake opening 176 may be formed at theinner face 168 ofgreasable seal 173. The ingress, outer, orfirst end 176 a of theintake 176 may be positioned at, and extend from, theouter surface 171 of thebearing shield 173 to theball bearings 28 within thebearing 10. In other instances, theingress 176 a of theintake 176 may extend to, be positioned at, or be formed in or through, theouter face 167 of thegreasable seal 173. When theingress 176 a is formed in theouter face 167 the ingress may be opposite the egress, inner, orsecond end 176 b of theintake opening 176. Theegress 176 b of theintake opening 176 may be formed at theinner face 168 ofgreasable seal 173. - The attachment between the greasable bearing 10 and
bearing shield 173 may be a press-fit or friction fit attachment that is sufficiently tight and strong to prevent grease or lubricant being applied to thebearing 10, including aroundballs 28, to exit at an interface between the bearing 10 and thebearing shield 173. With a press-fit or friction fit attachment between the bearing 10 andbearing shield 173, thebearing shield 173 may be rotated, once attached, to ensure theingress 176 a is at a desired position, and aligns with desired features, such as agrease zerk 170. -
FIG. 2E shows a perspective view of thebearing shield 173 detached, or away, from thebearing 10, and opposite the view shown inFIGS. 2A and 2B .FIG. 2E shows theinner face 168 of thebearing shield 173 exposed and oriented towards the reader, rather than theouter face 167 of thebearing shield 173 being exposed and oriented towards the reader as shown inFIGS. 2A and 2B . The view ofFIG. 2E also shows a securing member, snap, threading, orlip 177 formed as part of thebearing shield 173 for coupling thebearing shield 173 to thebearing 10. In some instances, the lip orlips 177 may be formed comprising a first, outer, orupper lip 177 a that is disposed a first distance from a radial center C of thebearing shield 173. The lip orlips 177 may also comprise a second, inner, orlower lip 177 b that is disposed a second distance, less than the first distance, from the radial center C of thebearing shield 173. Thelips 177 may be a part of theinner face 168 and be positioned farther from theouter face 167 than the rest of theinner face 168, so as to protrude away from the main body of thegreasable seal 173 and to slide, fit, or be disposed within a receivingportion 30 of thebearing 10. The receivingportion 30 of thebearing 10 may comprise a portion below the outer ring 18 (e.g., nearer the center of the bearing opening 40 that the outer ring 18) and above the inner ring 12 (e.g., farther the center of the bearing opening 40 than the inner ring 12). The receivingportion 30 of bearing 10 may be for receiving conventional shields, such as first shield or seal 32 and second shield or seal 34, as well as receive thegreaseable seal 173, such as when thegreasable seal 173 is made to fit with bearing 10. - A lubricant or
grease channel 178 may be disposed between, bordered by, and formed with respect to thelips 177. As such, the lubricant or grease can enter thegreasable seal 173 through theingress 176 a and exit theegress 176 b after passing through theintake 176. Exiting theegress 176 b, the lubricant or grease may travel in, along, and through thechannel 178 and adjacent, around, and in contact with theinner groove 14 and inner surface of theinner ring 12, theouter groove 20 and the inner surface of theouter ring 18, thecage 26, and theballs 28 of thebearing 10. - In some instances, a second slot, outflow, lubricant outflow, channel, shaft, or opening 179, shown for example in
FIG. 2G , may be formed in thebearing shield 173 similar to theintake 176. The outflow 179 may be positioned opposite theintake 176 so that the lubricant will travel an entire course of thechannel 178 before arriving at the outflow 179. As size of thechannel 178 and the outflow 179 may be sized such that the lubricant, when following the path of least resistance, will contact, coat, or both contact and coat at least a portion and perhaps all or substantially all of theinner groove 14 and inner surface of theinner ring 12, theouter groove 20 and the inner surface of theouter ring 18, thecage 26, and theballs 28 of thebearing 10, before excess lubricant or grease begins to exit the outflow 179. In such instances, when the lubricant or grease begins to exit the outflow 179, the lubricant exiting the outflow will indicate the bearing is full of lubricant, and no additional lubricant need be added at the intake at the time. In some instances the outflow may be covered or plugged to fill any voids or areas without lubricant within thebearing 10 andseal 173. In other instances, thebearing shield 173 may be made with only oneintake 176 and without any outflow 179, such that excess lubricant, such as grease, will exit back out through theintake 176. The connection or attachment of thegreasable seal 173 to thebearing 173, such as by a press fitting or other suitable fitting such as with threads, twisting, or screwing, may be done with sufficient force so as to prevent detachment of thebearing shield 173 and thebearing 10 with respect to each other when excess lubricant or grease enters and exits thebearing shield 173 and thebearing 10. -
FIGS. 2F and 2G are similar toFIGS. 2C and 2D , respectively, but show thebearing shield 173 detached from, and without, thebearing 10.FIG. 2F shows a front profile view of thebearing shield 173 in the z-x plane withouter face 167 of thegreasable seal 173 oriented towards the viewer.FIG. 2G shows a cross-sectional profile view of thebearing shield 173 taken along thesection line 2G-2G shown inFIG. 2F . Thus, theshield seal 173 may be releasably coupled to thebearing 10, such as by having thelips 177 snap into the receivingportion 30 of thebearing 10. Additionally, thegreasable seal 173 may facilitate and allow for thebearing 10 to have grease added (be greasable) without removing thegreasable seal 173 or other shields or seals, such as shields or seals 32, 34, and without exposing theballs 28 or repacking thebearing 10. Thegreasable seal 173 may facilitate and allow for thebearing 10 to be grease-able and to have grease added thebearing 10 when thebearing 10 is within the carrier bearing assembly 190 (as shown and discussed with respect toFIGS. 3A-3E ). Furthermore, lubrication or greasing of thebearing 10 may occur with a snap ring or retainingring 159 in place, and with thebearing 10, and clamp collars, on theshaft 60 as well. By aligning theslot 176 in theseal 173 with thegrease zerk 170 on the housing orbracket 150 and pressing the seal or shield 173 into place, the bearing 10 can conveniently provide for lubrication and improved performance of thebearing 10 without unpacking and repacking thebearing 10 and without a need to remove bearing 10 from thecarrier bearing assembly 190, or remove the carrier bearing assembly 190 from a vehicle frame. -
FIG. 2H shows a profile view of thegreasable seal 173 in the z-x plane detached or separate from thebearing 10, similar to the view shown inFIG. 2F , but with the view ofFIG. 2H showing theinner face 168 of thegreasable seal 173 oriented towards the viewer. -
FIG. 21 shows a cross-sectional profile view, in the y-z plane, of a portion of thegreasable seal 173 taken along the section line 21-21 shown inFIG. 2E .FIG. 21 shows thelips grease channel 178, and what theintake 176 may look like, in cross sectional view, if present in the cross-sectional area shown inFIG. 21 . In some instances, theintake opening 176 may be disposed through thegreasable seal 173 and extend from the outer ring-shapedsurface 171 to theinner face 168. Alternatively, theintake opening 176 may be disposed through the greasable seal and extend from theouter face 167 to theinner face 168. In some instances, thelip 177 may comprise a first, outer, orupper lip 177 a at theinner face 168 that mateably couples adjacent theouter ring 18. Thelip 177 may also comprise a second, inner, orlower lip 177 b at theinner face 168 that mateably couples adjacent theinner ring 12. In such instances, thelip 177 may be press-fit between theinner ring 12 and theouter ring 18. -
FIGS. 3A-3E illustrate various views of an embodiment of thecarrier bearing assembly 190. Thecarrier bearing assembly 190 includes a height H that extends in a vertical or z-direction, a width W that extends in a horizontal, lateral, or x-direction such as generally between left and right sides of the vehicle or in a direction extending between doors of the vehicle, and a length L that is perpendicular to the height and width and extends in a y-direction or along a length of the vehicle, such as between the front and back of the vehicle. - The
carrier bearing assembly 190 includes abracket 150 that can be constructed from a strong, durable, and tough material such as metal, including steel, aluminum, aluminum composite, and other suitable materials. Thebracket 150 can be formed of one or more pieces, and in some instances, can be formed of a single, unitary, or modular piece. Thebracket 150 can be cast, formed, stamped, machined, carved, or formed in any other suitable way. Thebracket 150 can be formed of a single material or multiple materials, including alloys, and with a desired finish, plating, or treatment. Thebracket 150 can be coupled, attached, or bolted to theframe 64 of a vehicle or UTV, such as the Polaris RZR 1000, usingfastener members FIG. 3A . When replacing an original carrier bearing assembly, thebolts new carrier bearing 190 is the same with respect to theframe 64 of the vehicle and the driveshaft of the vehicle. As shown, thecarrier bearing assembly 190 can include abearing 10, and a driveshaft opening orhole 40 in thebearing 10, through which thedriveshaft 60 of the vehicle can pass through. - The fastener members or the mounting structures 119 can be used to couple, secure, or bolt the
carrier bearing assembly 190 to theframe 64 and can comprise any desirable mechanical or chemical fasteners including nuts 127 and bolts 120, rods, pegs, clamps, welding, rivets, pins, screws, adhesives, or other suitable devices, such asbolts bolts bracket 150 from atop side 150 c to abottom side 150 d of the bracket 150 (or in some instances from the bottom side to the top side) so as to attach thebracket 150 to corresponding mountingholes frame 64. In other instances, instead of mountingholes frame 64, theframe 64 can comprise one or more bolts, threaded portions, or other structure that extend from theframe 64 into the bolt holes 121A, 121B in thebracket 150. In yet other instances, instead ofbolt holes bracket 150, one or more bolts, threaded portions, or other structure can be integrally formed or permanently attached to thebody 150 without usingbolt holes bolt holes body 150, so that the bolts, threaded portions, or other structures extend from thebody 150 and can be coupled to theholes frame 60. In some instances, thebody 150 may be attached to the mountingholes original bolts bracket 150 can be mounted to thevehicle chassis 64 in a method that allows a small amount of compliance at each fastening location (bothbolts OEM vehicle frame 64, or different vehicle frames. - The
carrier bearing assembly 190 may comprise an auto set angle between the bearing 10 and thebracket 150, or between the bearing 10 within theupper bracket 150A and the lower bracket 150C, or between the bearing 10 and theframe 64, the mounting holes 66, or theshaft 60. For example,FIG. 3A shows an exploded perspective view of thecarrier bearing assembly 190, with thefront face 151 a oriented toward the viewer, and with theupper bracket component 150A disposed above thelower bracket component 150B to be rigidly coupled to thelower bracket 150B, such as with mechanical fasteners or threadedbolts 152, as also shown inFIGS. 3B-3E . The openings through whichbolts 152, or bolts 127, pass may be slotted, elongate, curved, or otherwise allow for relative movement and adjustment or automatically setting (auto set) of thebearing 10 and thebracket 150, or between the bearing 10 within theupper bracket 150A and the lower bracket 150C, or between the bearing 10 and theframe 64, the mounting holes 66, or theshaft 60. Overall dimensions of the carrier bearing 190 can be similar or identical to those discussed for similar carrier bearings discussed in the matters to which priority is claimed, and which are incorporated by reference herein. -
FIG. 3A also shows thefirst end 150 a and the second 150 b of thelower bracket component 150B optionally having different heights, while in other embodiments, the heights of thefirst end 150 a and thesecond end 150 b can be of the same height. In either event, thebracket 150 can comprisebusing pairs 124A/124C and 124B/124D that may provide additional compliance between thebracket 150 and thevehicle frame 64 to account for manufacture variation and vibration. The bushings or stepped bushings 124 (including 124A, 124B, 124C, 124D) may be constructed of vibration absorbing material such as rubber. In other instances, thebushings carrier bearing assembly 190 can also optionally comprisewashers - An additional and advantageous feature of the
greasable seal 173 is that when the seal is coupled tobearings 10 and in operation, including when operating or positioned in out-of-the-way or difficult to access spaces such as disposed withincarrier bearing assembly 190, bearing 10 may still be easily greased. Conventionally, bearing 10 would need to be removed from its operating or out-of-the-way space to be greased and be disassembled, such as by removingshields bearing 10 repacked with grease to ensure proper lubrication to support desired performance and extend the life of thebearing 10 and its parts, such ascage 26 andballs 28. In such instances, repacking the bearing 10 with new grease may involve removing one or more of theshields bearing 10 can damage the one ormore shields - On the other hand, with
greasable seal 173 coupled to thebearing 10, the bearing 10 can be greased by supplying grease through the zerk, grease fitting, orgrease nipple 170, which will allow the grease to pass from thezerk 170, through theintake opening 176, and extend into thebearing 10 and around thecage 26 andballs 28, using, e.g., a grease gun. As such, the bearing 10 with thegreasable seal 173 may be greased while in use, such that the bearing need not be removed or disassembled to be greased. In so doing, thegreasable seal 173 and theintake opening 176 may comprise and alignment that may remained fixed with respect to thezerk 170 and without rotating while theinner ring 12 is free to move with theshaft 60 disposed within theopening 40. - Undesired grease, debris, and fluids, such as water, may be prevented from entering and exiting through the
opening 176 by a ball and spring within thezerk 170, or by the bearing 10 being filled with a sufficient volume of grease or lubricant or sufficient viscosity. When the second opening or outflow 179 is present in thegreasable seal 173, undesired debris or fluid may similarly be prevented from entering or exiting the outflow 179 with a sufficient volume of grease or lubricant or sufficient viscosity. As such, greasing and operation of thebearing 10, including within or without thecarrier bearing assembly 190 can be facilitated by greasable seals 173. -
FIG. 3B shows an example of a non-exploded view of thecarrier bearing assembly 190, similar to the view of the carrier bearing 190 shown inFIG. 3A .FIG. 3B showsgreasable seal 173 disposed against or adjacent a side of bearing 10 when thebearing 10 and thebearing shield 174 opposite thegreasable seal 173 are disposed within theopening 155 in thebracket 150. Thebearing shield 174 can be made of metal, rubber, or other suitable material, and can keep trash, foreign debris, and undesired materials from contacting, contaminating, or harming thebearing 10, but without the added functionality ofgreasable seal 173, that allows for greasing or adding lubricant to thebearing 10 while thegreasable seal 173 is mateably coupled to thebearing 10. -
FIG. 3C shows an example of a non-exploded view of thecarrier bearing assembly 190, similar to the view of the carrier bearing 190 shown inFIG. 3B , but with the back 151 b of thebracket 150 or thecarrier bearing assembly 190 oriented towards the viewer instead of the front 151 a oriented towards the viewer. -
FIG. 3D shows a rear profile view of thecarrier bearing assembly 190 similar to the perspective view ofFIG. 3C . InFIG. 3D , the curvature of sides of the upper integrally formed or machinedbracket component 150A are shown, in which the sides of theupper component 150A are vertical. WhileFIG. 3D shows thezerk 170 disposed towards thesecond end 150 b of thebracket 150, thezerk 170 can also be disposed toward thefirst end 150 of thebracket 150. Similarly, thezerk 170 may be disposed at any desirable location along thebracket 150, whether towards thefirst end 150 a or thesecond end 150 b. -
FIG. 3E shows a sectional view of the carrier-bearing 190 taken along the section-line 3E-3E shown inFIG. 3D .FIG. 3E also includes a portion of adrive shaft 60 disposed in theopening 155 of the carrier-bearing 190. -
FIG. 4 shows a carrier bearing assembly, such ascarrier bearing assembly 190, that is situated on thedrive shaft 60, which may include one or more u-joints 62. Thecarrier bearing assembly 190 can then be fastened or bolted to theframe 64 of the UTV, with the openings orbolt holes openings frame 64. In some instances, the alignment of the openings orbolt holes openings bolt holes openings bolt holes frame 64, rather than relying on one or more of theoriginal openings frame 64. - Where the above examples, embodiments and implementations reference examples, it should be understood by those of ordinary skill in the art that other manufacturing devices and examples could be intermixed or substituted with those provided. Accordingly, for example, although particular features may be disclosed, such components may comprise any shape, size, style, type, model, version, class, grade, measurement, concentration, material, weight, quantity, and/or the like consistent with the intended operation of a method and/or system implementation may be used. In places where the description above refers to particular implementations, it should be readily apparent that a number of modifications may be made without departing from the spirit thereof and that these implementations may be applied to other embodiments. Accordingly, the disclosed subject matter is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the disclosure and the knowledge of one of ordinary skill in the art.
Claims (20)
1. A seal for a roller bearing assembly, comprising:
a ring-shaped main body comprising an axial facing inner face;
an intake opening disposed through the main body that extends to the inner face; and
a securing member formed on the inner face and configured to mateably couple with a roller bearing, wherein the securing member comprises an upper lip and a lower lip separated by a grease channel, wherein the upper lip and the lower lip are configured to be disposed between an inner ring and an outer ring of the roller bearing when the securing member is coupled with the roller bearing.
2. The seal of claim 1 , wherein the main body further comprises a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
3. The seal of claim 1 , wherein the seal is formed of Polytetrafluoroethylene (PTFE).
4. The seal of claim 1 , further comprising a zerk in fluid communication with the intake opening.
5. The seal of claim 1 , wherein an outflow opening is formed in the seal opposite the intake opening to allow excess grease to exit the seal.
6. The seal of claim 1 , wherein the seal is configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
7. A seal for a roller bearing assembly, comprising:
a ring-shaped main body comprising an axial facing inner face;
an intake opening disposed through the main body that extends to the inner face; and
a securing member formed on the inner face and configured to be press fit into a roller bearing between an inner ring and an outer ring of the roller bearing.
8. The seal of claim 7 , wherein the securing member further comprises a lip formed on the inner face and configured to couple with the roller bearing between the inner ring and the outer ring of the roller bearing.
9. The seal of claim 7 , wherein the main body further comprises a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
10. The seal of claim 7 , wherein the seal is formed of Polytetrafluoroethylene (PTFE).
11. The seal of claim 7 , further comprising a zerk in fluid communication with the intake opening.
12. The seal of claim 7 , wherein an outflow opening is formed in the seal opposite the intake opening to allow excess grease to exit the seal.
13. The seal of claim 7 , wherein the seal is configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
14. A seal for a roller bearing assembly, comprising:
a ring-shaped main body comprising an axial facing inner face;
an intake opening disposed through the main body that extends to the inner face; and
a securing member formed on the inner face and configured to mateably couple with a roller bearing between an inner ring and an outer ring of the roller bearing.
15. The seal of claim 14 , wherein the securing member further comprises a lip formed on the inner face and configured to couple with the roller bearing between the inner ring and the outer ring of the roller bearing.
16. The seal of claim 14 , wherein the main body further comprises a radial facing outer surface adjacent the inner face and wherein the intake opening disposed through the seal extends from the outer surface to the inner face.
17. The seal of claim 14 , wherein the seal is formed of Polytetrafluoroethylene (PTFE).
18. The seal of claim 14 , further comprising a zerk in fluid communication with the intake opening.
19. The seal of claim 14 , wherein an outflow opening is formed in the seal opposite the intake opening to allow excess grease to exit the seal.
20. The seal of claim 14 , wherein the seal is configured to replace a conventional shield of the roller bearing and convert the roller bearing into a greasable roller bearing when the securing member is mateably coupled with the roller bearing.
Priority Applications (1)
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US18/160,748 US20230167855A1 (en) | 2015-11-25 | 2023-01-27 | Greasable bearing assembly |
Applications Claiming Priority (6)
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US14/952,741 US9956872B2 (en) | 2015-11-25 | 2015-11-25 | Carrier bearing assembly |
US15/449,483 US9862269B2 (en) | 2015-11-25 | 2017-03-03 | Carrier bearing assembly |
US15/866,219 US10471825B2 (en) | 2015-11-25 | 2018-01-09 | Carrier bearing assembly |
US16/676,294 US10968953B2 (en) | 2015-11-25 | 2019-11-06 | Greasable bearing assembly |
US17/223,564 US11566667B1 (en) | 2015-11-25 | 2021-04-06 | Greasable bearing assembly |
US18/160,748 US20230167855A1 (en) | 2015-11-25 | 2023-01-27 | Greasable bearing assembly |
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US17/223,564 Continuation US11566667B1 (en) | 2015-11-25 | 2021-04-06 | Greasable bearing assembly |
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US17/223,564 Active US11566667B1 (en) | 2015-11-25 | 2021-04-06 | Greasable bearing assembly |
US18/160,748 Abandoned US20230167855A1 (en) | 2015-11-25 | 2023-01-27 | Greasable bearing assembly |
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US10968953B2 (en) * | 2015-11-25 | 2021-04-06 | Sandcraft, Llc | Greasable bearing assembly |
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US11541750B2 (en) * | 2020-03-11 | 2023-01-03 | Dana Automotive Systems Group, Llc | Center bearing bracket assembly |
US20230347766A1 (en) | 2022-04-27 | 2023-11-02 | Skydio, Inc. | Base Stations For Unmanned Aerial Vehicles (UAVs) |
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KR101439159B1 (en) | 2013-09-27 | 2014-09-11 | 현대자동차주식회사 | Structure of bracket of inner-shaft bearing |
KR101519753B1 (en) | 2013-12-18 | 2015-05-12 | 현대자동차주식회사 | Support system for inner shaft of vehicle power train |
US9382968B2 (en) | 2014-01-14 | 2016-07-05 | Electro-Motive Diesel, Inc. | Engine system having torsional coupling with thin web flywheel |
JP6095633B2 (en) | 2014-11-21 | 2017-03-15 | Thk株式会社 | Rotational linear motion conversion device, steering device |
US9862269B2 (en) | 2015-11-25 | 2018-01-09 | Jonathan D Roberts | Carrier bearing assembly |
-
2019
- 2019-11-06 US US16/676,294 patent/US10968953B2/en active Active
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2021
- 2021-04-06 US US17/223,564 patent/US11566667B1/en active Active
-
2023
- 2023-01-27 US US18/160,748 patent/US20230167855A1/en not_active Abandoned
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US1722488A (en) * | 1923-11-05 | 1929-07-30 | Norma Hoffmann Bearings Corp | Ball bearing |
US11566667B1 (en) * | 2015-11-25 | 2023-01-31 | Sandcraft Llc | Greasable bearing assembly |
Also Published As
Publication number | Publication date |
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US11566667B1 (en) | 2023-01-31 |
US20200072283A1 (en) | 2020-03-05 |
US10968953B2 (en) | 2021-04-06 |
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