CH328840A - Needle bearing - Google Patents
Needle bearingInfo
- Publication number
- CH328840A CH328840A CH328840DA CH328840A CH 328840 A CH328840 A CH 328840A CH 328840D A CH328840D A CH 328840DA CH 328840 A CH328840 A CH 328840A
- Authority
- CH
- Switzerland
- Prior art keywords
- needles
- bearing
- needle
- ractérisé
- bearing according
- Prior art date
Links
Classifications
-
- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/088—Ball or roller bearings self-adjusting by means of crowning
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/06—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
-
- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
-
- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
- F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for 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
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biophysics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Analytical Chemistry (AREA)
- Rolling Contact Bearings (AREA)
Description
Roulement à aiguilles La présente invention a pour objet un rou lement à aiguilles comportant, au moins, une butée axiale pour l'une des extrémités des ai guilles, cette butée ayant une dureté inférieure à celle des aiguilles et étant indépendante des chemins de roulement, et ce roulement à ai guipes étant caractérisé par au moins un che min de roulement convexe vers les aiguilles.
En établissant ainsi soit l'un des chemins de roulement, soit les deux, les points de contact entre ces chemins et la surface cylindrique de l'aiguille se trouvent, en fonctionnement, tou jours au voisinage de la partie centrale de la surface cylindrique de l'aiguille et cela même en cas de déviation angulaire de l'arbre par rapport à l'alésage du palier, par exemple, telle que celle qui se produit couramment en cas de flexion, de défaut d'alignement ou d'imperfec tions d'usinage.
Ces points de contact ne peu vent être déportés, lors de déviation angulaire, vers l'une des extrémités de la surface cylindri que de l'aiguille ainsi que cela arrive .lorsque les deux chemins de roulement sont cylindri ques ; en conséquence, l'aiguille ne peut avoir tendance à exercer une poussée axiale, et, par suite, à détruire, à plus ou moins brève échéance, la butée axiale des aiguilles.
Le dessin représente plusieurs formes d'exécution du roulement à aiguilles objet de l'invention ; dans ce dessin La fig. 1 montre, en coupe axiale, un rou lement dont la bague intérieure présente un chemin de roulement convexe vers les aiguilles. La fig. 2 montre le roulement de la fig. 1 dont la bague intérieure a été déplacée angulai- rement par rapport à la bague extérieure.
La fig. 3 représente un roulement à cage de réception des aiguilles, présentant un chemin de roulement intérieur convexe vers les aiguilles et, également, un chemin extérieur convexe vers les aiguilles. La fig. 4 est une coupe longitudinale axiale et partielle d'un autre roulement dans lequel les aiguilles sont fusiformes. La fig. 5 montre un roulement à aiguilles fusiformes dans lequel,les deux bagues du rou lement sont convexes vers ces aiguilles. La fig. 6 est une vue partielle et en éléva tion de la cage seule.
La fig. 7 est une coupe transversale par tielle de la même cage.
A la fig. 1, 1 est la bague intérieure du rou lement à génératrices curvilignes, 2 la bague extérieure, 3 sont les aiguilles, par exemple, des aiguilles à bouts arrondis, 4 sont des pièces de butée axiale de ces aiguilles, pièces exécutées en une matière de dureté inférieure à celle des aiguilles.
La fig. 2 représente le même roulement dans lequel la bague intérieure 1 présentant le chemin intérieur de roulement a été soumise, par rapport à la bague extérieure 2, à une dé viation angulaire w, visible suivant le tracé des axes. Ces figures montrent qu'il existe une zone 5 de contact des aiguilles 3 avec le chemin inté rieur convexe, zone située au voisinage de la partie centrale de chaque aiguille.
A la fig. 3, la bague extérieure est établie avec un chemin extérieur de roulement à gé nératrices curvilignes ; les aiguilles 3 ont des extrémités plates ; ces extrémités sont en con tact avec des butées axiales 4.
Dans cette figure, le chemin intérieur et le chemin extérieur sont convexes.
Dans les roulements des fig. 1 à 3, les ex trémités des aiguilles peuvent avoir des for mes autres que celles représentées ; elles peu vent être plates, bombées ou autres.
A la fig. 4, le roulement représenté est simi laire à celui de la fig. 3 ; il ne diffère de ce der nier que par la forme des aiguilles 3 qui, ici, sont fusiformes au lieu d'être cylindriques.
A la fig. 5, il s'agit d'un roulement dans le quel les aiguilles 3 sont fusiformes comme dans le roulement de la fig. 4, mais les bagues 1 et 2 entre lesquelles ces aiguilles fusiformes sont montées sont toutes les deux à chemins de rou lement convexes vers ces aiguilles.
La fig. 6- montre une cage présentant des alvéoles 6 de réception, des aiguilles 3, ces ai guilles étant soit cylindriques, soit fusiformes.
La fig. 7 montre cette cage en coupe par tielle ; ces aiguilles 3 sont, en sens axial, en con tact avec les surfaces 7 de la cage ; cette cage est, généralement, exécutée en tôle douce, en un alliage ou en une matière non métallique ; la matière des butées est donc d'une dureté in férieure. à celle des aiguilles. I1 est évident qu'au lieu de la cage de la fig. 7, une cage d'une autre forme peut être adoptée.
Needle roller bearing The present invention relates to a needle roller bearing comprising, at least, one axial stop for one of the ends of the needles, this stop having a hardness less than that of the needles and being independent of the raceways, and this guiped bearing being characterized by at least one convex bearing path towards the needles.
By thus establishing either one of the raceways or both, the points of contact between these races and the cylindrical surface of the needle are, in operation, always in the vicinity of the central part of the cylindrical surface of the needle. needle and this even in the event of angular deviation of the shaft from the bore of the bearing, for example, such as that which commonly occurs in the event of bending, misalignment or imperfections in 'machining.
These points of contact cannot be offset, during angular deflection, towards one of the ends of the cylindrical surface of the needle, as happens when the two raceways are cylindrical; consequently, the needle cannot tend to exert an axial thrust, and, consequently, to destroy, more or less quickly, the axial stop of the needles.
The drawing represents several embodiments of the needle bearing object of the invention; in this drawing Fig. 1 shows, in axial section, a bearing whose inner ring has a convex raceway towards the needles. Fig. 2 shows the bearing of FIG. 1, the inner ring of which has been displaced angularly with respect to the outer ring.
Fig. 3 shows a needle receiving cage bearing, having an inner race convex towards the needles and, also, an outer race convex towards the needles. Fig. 4 is an axial and partial longitudinal section of another bearing in which the needles are spindle-shaped. Fig. 5 shows a spindle needle bearing in which the two rings of the bearing are convex towards these needles. Fig. 6 is a partial elevation view of the cage alone.
Fig. 7 is a partial cross section of the same cage.
In fig. 1, 1 is the inner ring of the curvilinear generatrix bearing, 2 is the outer ring, 3 are the needles, for example, needles with rounded ends, 4 are axial stop pieces of these needles, pieces made of a material of lower hardness than needles.
Fig. 2 shows the same bearing in which the inner ring 1 having the inner raceway has been subjected, relative to the outer ring 2, to an angular deviation w, visible along the line of the axes. These figures show that there is a zone 5 of contact of the needles 3 with the convex internal path, zone situated in the vicinity of the central part of each needle.
In fig. 3, the outer ring is established with an outer raceway with curvilinear generators; the needles 3 have flat ends; these ends are in contact with axial stops 4.
In this figure, the inner path and the outer path are convex.
In the bearings of fig. 1 to 3, the ends of the needles may have shapes other than those shown; they can be flat, convex or other.
In fig. 4, the bearing shown is similar to that of FIG. 3; it differs from this last only by the shape of the needles 3 which, here, are spindle-shaped instead of being cylindrical.
In fig. 5, it is a bearing in which the needles 3 are fusiform as in the bearing of FIG. 4, but the rings 1 and 2 between which these spindle-shaped needles are mounted both have convex rolling paths towards these needles.
Fig. 6- shows a cage having receiving cells 6, needles 3, these guilles being either cylindrical or spindle-shaped.
Fig. 7 shows this cage in partial section; these needles 3 are, in the axial direction, in contact with the surfaces 7 of the cage; this cage is generally made of soft sheet metal, an alloy or a non-metallic material; the material of the stops is therefore of lower hardness. to that of the needles. I1 is obvious that instead of the cage of FIG. 7, a cage of another shape can be adopted.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR328840X | 1954-04-02 | ||
FR141254X | 1954-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH328840A true CH328840A (en) | 1958-03-31 |
Family
ID=26213715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH328840D CH328840A (en) | 1954-04-02 | 1955-03-30 | Needle bearing |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH328840A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1163679B (en) * | 1959-05-14 | 1964-02-20 | Teves Kg Alfred | Hydrostatic rotary piston engine |
FR2688842A1 (en) * | 1992-03-21 | 1993-09-24 | Schaeffler Waelzlager Kg | FREE WHEEL WITH CLAMPING ELEMENTS. |
WO1997004219A1 (en) * | 1995-07-22 | 1997-02-06 | INA Wälzlager Schaeffler oHG | Cam follower |
DE102012220741A1 (en) * | 2012-11-14 | 2014-05-15 | Zf Friedrichshafen Ag | Arrangement for arranging rolling bearing on e.g. shaft of component, has rolling bearing comprising rolling elements, where inner bearing ring of bearing is connected with bearing seat of shaft by injecting and transformation processes |
CN105299037A (en) * | 2015-11-23 | 2016-02-03 | 常州克劳诺斯特种轴承制造有限公司 | Cylindrical roller bearing suitable for long shaft |
-
1955
- 1955-03-30 CH CH328840D patent/CH328840A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1163679B (en) * | 1959-05-14 | 1964-02-20 | Teves Kg Alfred | Hydrostatic rotary piston engine |
FR2688842A1 (en) * | 1992-03-21 | 1993-09-24 | Schaeffler Waelzlager Kg | FREE WHEEL WITH CLAMPING ELEMENTS. |
WO1997004219A1 (en) * | 1995-07-22 | 1997-02-06 | INA Wälzlager Schaeffler oHG | Cam follower |
DE102012220741A1 (en) * | 2012-11-14 | 2014-05-15 | Zf Friedrichshafen Ag | Arrangement for arranging rolling bearing on e.g. shaft of component, has rolling bearing comprising rolling elements, where inner bearing ring of bearing is connected with bearing seat of shaft by injecting and transformation processes |
CN105299037A (en) * | 2015-11-23 | 2016-02-03 | 常州克劳诺斯特种轴承制造有限公司 | Cylindrical roller bearing suitable for long shaft |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4479683A (en) | Cross roller bearing | |
US4472006A (en) | Roller bearing with an improved cage | |
FR2553161A1 (en) | CAGE FOR BALL BEARING, ESPECIALLY PLASTIC CAGE FOR FOUR-POINT CONTACT BEARING | |
FR2669692A1 (en) | DOUBLE BEARING WITH OBLIQUE CONTACT. | |
FR2621366A1 (en) | BEARING WITH BALLS OR ROLLS OR BEARING COMBINED WITH BALLS AND ROLLS | |
JPH01169118A (en) | Spacer for cross roller bearing | |
FR2659404A1 (en) | BEARING FOR MOUNTING SHAFTS OR THE LIKE HAVING LIMITED AXIAL MOVEMENT. | |
CH328840A (en) | Needle bearing | |
FR2575246A1 (en) | TREE BEARING WITH TWO CIRCULAR SERIES OF BEADS | |
US3547504A (en) | Double-row spherical roller bearing and retainer | |
FR2649766A1 (en) | Cage with pockets for a rolling-contact bearing | |
USRE15345E (en) | robson | |
JPS62196423A (en) | Bearing device | |
US20040091189A1 (en) | Purely rolling bearing | |
CH386188A (en) | Double thrust bearing | |
CH306729A (en) | Shaft bearing and method for its manufacture. | |
CA2341465A1 (en) | Pure rolling bearing | |
US1496516A (en) | Ball bearing and method of forming and assembling the same | |
FR2646690A1 (en) | Rolling-contact bearing, particularly roller bearing | |
DE112018006341T5 (en) | ROLLING BEARING FASTENING STRUCTURE | |
JP4211093B2 (en) | Press type cage for roller bearings | |
US3809446A (en) | Thrust rolling bearing | |
US1878057A (en) | Roller bearing and cage | |
CN211599290U (en) | Corrosion-resistant motorcycle plane bearing | |
US980932A (en) | Ball-holding cage for ball-bearings. |