CN207297645U - Self-lubricating abrasion-resistant rolling bearing - Google Patents
Self-lubricating abrasion-resistant rolling bearing Download PDFInfo
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- CN207297645U CN207297645U CN201721367224.1U CN201721367224U CN207297645U CN 207297645 U CN207297645 U CN 207297645U CN 201721367224 U CN201721367224 U CN 201721367224U CN 207297645 U CN207297645 U CN 207297645U
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Abstract
It the utility model is related to a kind of self-lubricating abrasion-resistant rolling bearing, bearing inner race, bearing outer ring, rolling element, retainer, upper end cover and lower end cover composition rolling bearing structure, self-lubricating abrasion-resistant layer is provided with the excircle of the upper and lower ends of bearing inner race or/and end face, the excircle of the inner ring of upper end cover and the self-lubricating abrasion-resistant layer of the upper end of bearing inner race is interference fitted, the outer ring of upper end cover is fixedly connected with or clamps connection with the upper end of bearing outer ring, the excircle of the inner ring of lower end cover and the self-lubricating abrasion-resistant layer of the lower end of bearing inner race is interference fitted, the outer ring of lower end cover is fixedly connected with or clamps connection with the lower end of bearing outer ring.The setting of self-lubricating abrasion-resistant layer, the inner ring of upper-lower seal end cap is contacted with self-lubricating abrasion-resistant layer, so as to effectively reduce friction, reduce the generation of heat, be interference fitted at the same time, it can effectively prevent extraneous dust impurity from entering bearing cavity, so as to ensure the service life of bearing.
Description
Technical field
The utility model belongs to bearing arrangement technical field, and in particular to one kind can reduce bearing (ball) cover and bearing inner race
Friction and heat transfer self-lubricating abrasion-resistant rolling bearing.
Background technology
Bearing is that component that is fixed and reducing load friction coefficient is played in mechanical transmission course.It may also be said that when other
Parts when producing relative motion each other on axis, for reducing friction coefficient and the holding shaft center in power transmission process
Fixed parts.Bearing is a kind of very important parts in contemporary mechanical equipment.Its major function is support machinery rotation
Swivel, to reduce mechanical load friction coefficient of the equipment in transmission process.
Rolling bearing is generally made of bearing outer ring, bearing inner race, rolling element, retainer and upper-lower seal end cap.It is existing
The upper-lower seal end cap of rolling bearing be generally arranged at the upper and lower ends of rolling bearing, to seal bearing inner race with outside bearing
Gap between two end faces of circle, outer ring and the bearing outer ring of usual upper-lower seal end cap are interference fitted, upper-lower seal end cap
The sealing lip of inner ring contacted with bearing inner race or there are certain gap, the lubricating grease in bearing cavity enters in bearing
Between circle and the inner ring of upper-lower seal end cap, oil film is formed, is realized using the oil film in bearing inner race and upper-lower seal end cap
Sealing and lubrication between circle, the heat that rolling bearing produces in rotary course can make lubricating grease thinning, and mobility enhancing, becomes
Lubricating grease after dilute can vertically flow out between end cover and bearing inner race, cause the leakage of lubricating grease；In addition, rolling bearing
In use, extraneous dust mud also can vertically enter in bearing in the gap between end cover and bearing inner race
The leakage of chamber, either lubricating grease or dust enter bearing cavity, can all seriously affect the service life of rolling bearing.Separately
Outside, the inner ring of the upper-lower seal end cap of existing rolling bearing is contacted with bearing inner race, in rotation process, bearing inner race with it is close
End-blocking lid friction, produces substantial amounts of heat transfer to bearing inner race, causes bearing temperature to raise, same influence bearing uses the longevity
Life, according to statistics, in normal use, its temperature remains to reach 55 ~ 65 DEG C rolling bearing in the case of without considering environment temperature,
In summer high temperature weather, the temperature of bearing generally reaches more than 85 DEG C.
Utility model content
In conclusion in order to overcome the shortcomings of prior art problem, the utility model provides a kind of self-lubricating abrasion-resistant rolling
Dynamic bearing, it is setting self-lubricating abrasion-resistant layer, rolling bearing on the excircle of the upper and lower ends of the bearing inner race of rolling bearing
End cap up and down inner ring with set self-lubricating abrasion-resistant layer after bearing inner race interference fit connect, the outer ring of upper-lower seal end cap
Fix or clamp connection with the bearing outer ring of rolling bearing, the setting of self-lubricating abrasion-resistant layer, makes the inner ring of upper-lower seal end cap
Contact with self-lubricating abrasion-resistant layer, so as to effectively reduce friction, reduce the generation of heat, be interference fitted at the same time, can be effective
Prevent extraneous dust impurity from entering bearing cavity, so as to ensure the service life of bearing.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of self-lubricating abrasion-resistant rolling bearing, wherein：Including bearing inner race, bearing outer ring, rolling element, upper end cover,
Lower end cover and retainer, the bearing inner race, bearing outer ring, rolling element, retainer, upper end cover and lower sealed end
Lid forms rolling bearing structure, and it is resistance to be provided with self-lubricating on the excircle of the upper and lower ends of the bearing inner race or/and end face
The excircle of the self-lubricating abrasion-resistant layer of mill layer, the inner ring of the upper end cover and the upper end of bearing inner race is interference fitted, institute
The outer ring of upper end cover stated is fixedly connected with or clamps connection with the upper end of bearing outer ring, the lower end cover it is interior
The excircle of circle and the self-lubricating abrasion-resistant layer of the lower end of bearing inner race is interference fitted, the outer ring of the lower end cover and bearing
The lower end of outer ring is fixedly connected with or clamps connection.
Further, the self-lubricating abrasion-resistant layer is configured in proportion by self-lubricating material with wear-resistant material mix after coat it is solid
It is scheduled on the excircle of the upper and lower ends of bearing inner race；Or self-lubricating abrasion-resistant layer by self-lubricating material and wear-resistant material in proportion
Banding section bar is made after configuration mixing, pastes or clamps on excircle or/and the end face for the upper and lower ends for being connected to bearing inner race.
Further, the thickness of the self-lubricating abrasion-resistant layer is 0.01 ~ 5mm.
Further, the upper end cover is identical with lower sealing end-cover structure, including skeleton and is fixed on skeleton
Sealing ring, the skeleton is loop configuration, its outer ring is fixedly connected with or clamps connection, the sealing with bearing outer ring
Circle the part in the inner ring of skeleton be provided with upper lip and lower lip, the upper lip is inclined upwardly, lower lip to
Lower inclination, there are angle, upper lip and lower lip and the excircle interference of self-lubricating abrasion-resistant layer between upper lip and lower lip to match somebody with somebody
After closing installation, lubricating oil space is formed between upper lip, lower lip and self-lubricating abrasion-resistant layer, is provided with the lower lip
Hole, open-work connection bearing cavity and lubricating oil space.
Further, the angle of the upper lip and lower lip is less than or equal to 180 degree more than or equal to 60 degree.
Further, the quantity of the open-work is multiple, multiple open-works along interior lip circumferentially.
The beneficial effects of the utility model are：
1st, the utility model is to set self-lubricating abrasion-resistant on the excircle of the upper and lower ends of the bearing inner race of rolling bearing
Layer, the inner ring of the end cap up and down of rolling bearing are close up and down with setting the bearing inner race interference fit after self-lubricating abrasion-resistant layer to connect
Block the outer ring of lid and connection is fixed or clamped to the bearing outer ring of rolling bearing, the setting of self-lubricating abrasion-resistant layer, makes close up and down
The inner ring of end-blocking lid is contacted with self-lubricating abrasion-resistant layer, so that effectively reduce friction, reduce the generation of heat, while interference is matched somebody with somebody
Close, can effectively prevent extraneous dust impurity from entering bearing cavity, so as to ensure the service life of bearing.
2nd, the self-lubricating abrasion-resistant layer of the utility model is configured in proportion by self-lubricating material with wear-resistant material mix after coat
Be fixed on the excircle of the upper and lower ends of bearing inner race, or self-lubricating abrasion-resistant layer by self-lubricating material and wear-resistant material press than
Banding section bar is made after example configuration mixing, pastes or clamp excircle or/and the end face of the upper and lower ends for being connected to bearing inner race
On.The presence of self-lubricating material can effectively reduce the friction between the inner ring of upper-lower seal end cap and self-lubricating abrasion-resistant layer
Power, reduces the generation of frictional heat, and the presence of wear-resistant material can effectively reduce upper-lower seal end cap and self-lubricating abrasion-resistant again
The abrasion of layer, ensures service life.
3rd, the inner ring of the upper-lower seal end cap of the utility model and the excircle of self-lubricating abrasion-resistant layer are interference fitted, and are eliminated
Gap between upper-lower seal end cap and bearing inner race, can effectively prevent the lubricant grease of bearing cavity from revealing, while
It can effectively prevent extraneous dust impurity from entering bearing cavity, sealing effect is good, and can effectively ensure that bearing uses the longevity
Life.When the inner ring of upper-lower seal end cap and the larger interference volume of self-lubricating abrasion-resistant layer, between inner ring and self-lubricating abrasion-resistant layer
Oil film can disappear because interference volume is big, due to the presence of self-lubricating material, using the greasy property of self-lubricating material in itself
Realize lubricating function.So as to avoid rapid wear.
4th, open-work is provided with the lower lip of the sealing ring of the upper-lower seal end cap of the utility model, open-work is located at lower lip
Middle part, open-work connection bearing cavity and lubricating oil space, then, the lubricant grease of bearing cavity is flowed out along open-work, upper lip,
Between lower lip and bearing inner race, centered on open-work, flowed from center to upper and lower both sides, thus upper lip, lower lip with
Oil film is formed between self-lubricating abrasion-resistant layer, lubricant effect is improved, further reduces frictional force, reduce the generation of heat.
5th, the utility model is simple in structure, easy to use, cheap, can effectively reduce upper-lower seal end cap and axis
The frictional force between inner ring is held, reduces the generation of frictional heat, through experiment, in normal use, its temperature exists the utility model
It is only 35 ~ 40 DEG C in the case of considering environment temperature, bearing temperature is greatly reduced compared to existing rolling bearing, so that effectively
Guarantee bearing service life.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model
1. bearing inner race, 2. bearing outer rings, 3. rolling elements, end cover, 5. times end covers, 6. self-lubricating abrasion-resistants on 4.
Layer.
Fig. 2 is the structure diagram of the upper-lower seal end cap of the utility model
7. skeleton, 8. sealing rings, 81. upper lips, 82. open-works, 83 lower lips.
Fig. 3 is the A portions enlarged diagram in Fig. 1 of the utility model.
Embodiment
The utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of self-lubricating abrasion-resistant rolling bearing, including bearing inner race 1, bearing outer ring 2, rolling
Body 3, upper end cover 4, lower end cover 5 and retainer, the bearing inner race 1, bearing outer ring 2, rolling element 3, retainer,
Upper end cover 4 and lower end cover 5 form rolling bearing structure, on the excircle of the upper and lower ends of the bearing inner race 1
It is provided with self-lubricating abrasion-resistant layer 6, the thickness of self-lubricating abrasion-resistant layer 6 is 2 ~ 5mm, the inner ring and bearing of the upper end cover 4
The excircle interference fit of the self-lubricating abrasion-resistant layer 6 of the upper end of inner ring 1, outer ring and the bearing outer ring 2 of the upper end cover 4
Upper end be fixedly connected with or clamp connection, the inner ring of the lower end cover 5 and the self-lubricating of the lower end of bearing inner race 1 are resistance to
The excircle interference fit of layer 6 is ground, the outer ring of the lower end cover 5 is fixedly connected or blocks with the lower end of bearing outer ring 2
Load connects.The self-lubricating abrasion-resistant layer 6 is configured in proportion by self-lubricating material with wear-resistant material mix after coating be fixed on axis
On the excircle for holding the upper and lower ends of inner ring 1.The percentage by weight of self-lubricating material and wear-resistant material is 50%：50%.Described
Self-lubricating material include percentage by weight be 50% polyphenyl fat and percentage by weight be 50% polytetrafluoroethylene (PTFE), graphite, lead powder, copper
Mixture in powder and molybdenum disulfide.The wear-resistant material is the mixture of carbon fiber, ceramic powder and glass fibre.
Upper end cover 4 is identical with lower 5 structure of end cover, including skeleton 7 and the sealing ring being fixed on skeleton 78,
The skeleton 7 is loop configuration, its outer ring is fixedly connected with or clamps connection, the position of the sealing ring 8 with bearing outer ring 2
Part in the inner ring of skeleton 7 is provided with upper lip 81 and lower lip 83, the upper lip 81 is inclined upwardly, lower lip 83
Tilt down, there are 120 degree of angle, 81 lower lip 83 of upper lip and self-lubricating abrasion-resistant layer between upper lip 81 and lower lip 83
After 6 excircle interference fit installation, lubricating oil space, institute are formed between upper lip 81, lower lip 83 and self-lubricating abrasion-resistant layer 6
Open-work 82 is provided with the lower lip 83 stated, the open-work 82 is arranged on the middle part of lower lip 83, and open-work 82 is connected in bearing
Chamber and lubricating oil space.The quantity of the open-work 82 to be multiple, multiple open-works 82 along lower lip 83 circumferentially.
In use, first weigh self-lubricating material and wear-resistant material in proportion, then by the self-lubricating material of weighing and wear-resisting
Material coats on the excircle for the upper and lower ends for being fixed on bearing inner race 1 after mixing, is formed after material cooled and solidified
Self-lubricating abrasion-resistant layer 6, then, upper end cover 4 and lower end cover 5 are pressed between bearing inner race 1 and bearing outer ring 2,
The inner ring of upper end cover 4 and the inner ring of lower end cover 5 and the excircle of self-lubricating abrasion-resistant layer are interference fitted, finally will be upper close
The outer ring of lid 4 and the outer ring of lower end cover 5 is blocked to be welded and fixed with bearing outer ring 2.
In use, since the position that upper-lower seal end cap 5 is interference fitted with the self-lubricating abrasion-resistant layer 6 on bearing inner race 1 is
The upper lip 81 and lower lip 83 of sealing ring 8, sealing ring 8 is using the material such as rubber, upper lip 81 and lower lip during interference fit
83 are squeezed is in close contact with the excircle of self-lubricating abrasion-resistant layer 6, i.e., does not influence the rotation of bearing, while can realize again close
Envelope.In rotation process, sealing ring 8 is contacted with self-lubricating abrasion-resistant layer 6, and sealing ring 8 is not contacted with bearing inner race 1, then sealing ring 8
Friction is produced between self-lubricating abrasion-resistant layer 6, since self-lubricating abrasion-resistant layer 6 uses self-lubricating material and wear-resistant material, is had certainly
Lubrication and antiwear characteristic, therefore, it is possible to effectively reduce frictional force, reduce heat and produce, while also reduce and be delivered in bearing
The heat of circle 1, so as to reduce bearing temperature.The presence of wear-resistant material, which also has to reduce, to rub, and reduces abrasion, ensures upper-lower seal
The effect of service life of end cap 5 and self-lubricating abrasion-resistant layer.
Multiple open-works 82 are provided with the lower lip 83 of the utility model, multiple open-works 82 are uniform along the circumferential direction of interior lip 81
Arrangement.Then, positioned at bearing cavity lubricant grease along open-work 82 flow into upper lip 81, lower lip 83 and self-lubricating abrasion-resistant layer 6 it
Between, and, its flow direction is the flowing up and down centered on open-work 82, so that upper lip 81, lower lip 83 and self-lubricating abrasion-resistant
The whole contact surface of layer 6 is all covered with oil film, further improves lubricant effect.
Embodiment two
Embodiment one is repeated, there is following difference：Self-lubricating abrasion-resistant layer 6 is matched somebody with somebody in proportion by self-lubricating material with wear-resistant material
Put on the excircle that the upper and lower ends for being fixed on bearing inner race 1 are coated after mixing.The weight hundred of self-lubricating material and wear-resistant material
Divide than being 30%：70%.The self-lubricating material include percentage by weight be 60% polyphenyl fat and percentage by weight be 40% it is poly-
Mixture in tetrafluoroethene, graphite, lead powder, copper powder and molybdenum disulfide.The wear-resistant material is carbon fiber, ceramic powder and glass
The mixture of glass fiber.The weight ratio of the wear-resistant material in self-lubricating abrasion-resistant layer 6, then, the present embodiment are increased in the present embodiment
Self-lubricating abrasion-resistant layer 6 wear-resisting property it is more preferable, be conducive to improve the service life of self-lubricating abrasion-resistant layer 6.
Embodiment three
Embodiment one is repeated, there is following difference：Self-lubricating abrasion-resistant layer 6 is matched somebody with somebody in proportion by self-lubricating material with wear-resistant material
Put on the excircle that the upper and lower ends for being fixed on bearing inner race 1 are coated after mixing.The weight hundred of self-lubricating material and wear-resistant material
Divide than being 70%：30%.The self-lubricating material include percentage by weight be 60% polyphenyl fat and percentage by weight be 40% it is poly-
Mixture in tetrafluoroethene, graphite, lead powder, copper powder and molybdenum disulfide.The wear-resistant material is carbon fiber, ceramic powder and glass
The mixture of glass fiber.The weight ratio of the self-lubricating material in self-lubricating abrasion-resistant layer 6, then, this implementation are increased in the present embodiment
The self-lubricating property of the self-lubricating abrasion-resistant layer 6 of example is more preferable, is conducive to lower frictional force, reduces heat and produces, reduces bearing temperature.
Example IV
Embodiment one is repeated, there is following difference：Self-lubricating abrasion-resistant layer 6 is matched somebody with somebody in proportion by self-lubricating material with wear-resistant material
Put on the excircle that the upper and lower ends for being fixed on bearing inner race 1 are coated after mixing.The weight hundred of self-lubricating material and wear-resistant material
Divide than being 40%：60%.The self-lubricating material include percentage by weight be 70% polyphenyl fat and percentage by weight be 30% it is poly-
Mixture in tetrafluoroethene, graphite, lead powder, copper powder and molybdenum disulfide.The wear-resistant material is carbon fiber, ceramic powder and glass
The mixture of glass fiber.The weight ratio of the wear-resistant material in self-lubricating abrasion-resistant layer 6, then, the present embodiment are increased in the present embodiment
Self-lubricating abrasion-resistant layer 6 wear-resisting property it is better than embodiment one, it is poorer than embodiment two, and the self-lubricating abrasion-resistant layer 6 of the present embodiment
Self-lubricating property to compare embodiment one poor, it is better than embodiment two.
Embodiment five
Embodiment one is repeated, there is following difference：Self-lubricating abrasion-resistant layer 6 is matched somebody with somebody in proportion by self-lubricating material with wear-resistant material
Put on the excircle that the upper and lower ends for being fixed on bearing inner race 1 are coated after mixing.The weight hundred of self-lubricating material and wear-resistant material
Divide than being 60%：40%.The self-lubricating material include percentage by weight be 70% polyphenyl fat and percentage by weight be 30% it is poly-
Mixture in tetrafluoroethene, graphite, lead powder, copper powder and molybdenum disulfide.The wear-resistant material is carbon fiber, ceramic powder and glass
The mixture of glass fiber.The weight ratio of the self-lubricating material in self-lubricating abrasion-resistant layer 6, then, this implementation are increased in the present embodiment
The self-lubricating property of the self-lubricating abrasion-resistant layer 6 of example is better than embodiment one, poorer than embodiment three, and the self-lubricating abrasion-resistant of the present embodiment
The wear-resisting property of layer 6 is poorer than embodiment one, better than embodiment three.
Embodiment six
Embodiment one is repeated, there is following difference：Self-lubricating abrasion-resistant layer 6 is matched somebody with somebody in proportion by self-lubricating material with wear-resistant material
Put and banding section bar is made after mixing, on the excircle and end face of the upper and lower ends that stickup or clamping are connected to bearing inner race 1.This reality
It is that self-lubricating wear-resistant coating 6 is first fabricated to banding section bar to apply example, and then banding section bar is pasted or clamped with bearing inner race 1 again
Connection, after self-lubricating abrasion-resistant layer 6 is worn, can replace it.
It is noted that embodiment described above is to the illustrative and not limiting of technical solutions of the utility model, affiliated skill
The equivalent substitution of art field those of ordinary skill or the other modifications made according to the prior art, as long as not new beyond this practicality
The thinking and scope of type technical solution, should be included within the interest field required by the utility model.
Claims (6)
- A kind of 1. self-lubricating abrasion-resistant rolling bearing, it is characterised in that：Including bearing inner race, bearing outer ring, rolling element, upper sealed end Lid, lower end cover and retainer, the bearing inner race, bearing outer ring, rolling element, retainer, upper end cover and under it is close End-blocking lid forms rolling bearing structure, is provided with the excircle of the upper and lower ends of the bearing inner race or/and end face from profit The excircle interference of the self-lubricating abrasion-resistant layer of sliding wearing layer, the inner ring of the upper end cover and the upper end of bearing inner race is matched somebody with somebody Close, the outer ring of upper end cover is fixedly connected with or clamps connection, the lower sealed end with the upper end of bearing outer ring The excircle of the inner ring of lid and the self-lubricating abrasion-resistant layer of the lower end of bearing inner race is interference fitted, the outer ring of the lower end cover Connection is fixedly connected with or clamped with the lower end of bearing outer ring.
- 2. self-lubricating abrasion-resistant rolling bearing according to claim 1, it is characterised in that：The self-lubricating abrasion-resistant layer is by certainly Lubriation material configures in proportion with wear-resistant material mix after coat be fixed on bearing inner race upper and lower ends excircle on；Or Self-lubricating abrasion-resistant layer is configured in proportion by self-lubricating material with wear-resistant material mix after be made banding section bar, paste or clamp connection On the excircle of the upper and lower ends of bearing inner race or/and end face.
- 3. self-lubricating abrasion-resistant rolling bearing according to claim 2, it is characterised in that：The thickness of the self-lubricating abrasion-resistant layer Spend for 0.01 ~ 5mm.
- 4. self-lubricating abrasion-resistant rolling bearing according to claim 1, it is characterised in that：The upper end cover is close with It is identical to seal end cover structure, including skeleton and the sealing ring being fixed on skeleton, the skeleton be loop configuration, its outer ring and Bearing outer ring is fixedly connected with or clamps connection, and the part in the inner ring of skeleton of the sealing ring is provided with upper lip And lower lip, the upper lip are inclined upwardly, lower lip tilts down, and there are angle, upper lip between upper lip and lower lip Side and lower lip with after the excircle interference fit installation of self-lubricating abrasion-resistant layer, upper lip, lower lip and self-lubricating abrasion-resistant layer it Between form lubricating oil space, open-work, open-work connection bearing cavity and lubricating oil space are provided with the lower lip.
- 5. self-lubricating abrasion-resistant rolling bearing according to claim 4, it is characterised in that：The upper lip and lower lip Angle is less than or equal to 180 degree more than or equal to 60 degree.
- 6. self-lubricating abrasion-resistant rolling bearing according to claim 4, it is characterised in that：The quantity of the open-work is more It is a, multiple open-works along interior lip circumferentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721367224.1U CN207297645U (en) | 2017-10-23 | 2017-10-23 | Self-lubricating abrasion-resistant rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721367224.1U CN207297645U (en) | 2017-10-23 | 2017-10-23 | Self-lubricating abrasion-resistant rolling bearing |
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| CN207297645U true CN207297645U (en) | 2018-05-01 |
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| CN201721367224.1U Active CN207297645U (en) | 2017-10-23 | 2017-10-23 | Self-lubricating abrasion-resistant rolling bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514426A (en) * | 2017-10-23 | 2017-12-26 | 唐小超 | Self-lubricating abrasion-resistant rolling bearing |
| CN108644235A (en) * | 2018-05-18 | 2018-10-12 | 江苏海川卓越密封材料有限公司 | A kind of and smaller bearing enclosure of axis friction power |
-
2017
- 2017-10-23 CN CN201721367224.1U patent/CN207297645U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514426A (en) * | 2017-10-23 | 2017-12-26 | 唐小超 | Self-lubricating abrasion-resistant rolling bearing |
| CN108644235A (en) * | 2018-05-18 | 2018-10-12 | 江苏海川卓越密封材料有限公司 | A kind of and smaller bearing enclosure of axis friction power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220705 Address after: 453000 No. 041, building A03, 863 Industrial Park, No. 166, Xindong Avenue, Hongqi District, Xinxiang City, Henan Province (east of 107) Patentee after: Henan Ningye Precision Machinery Technology Co.,Ltd. Address before: 453000 No. 129, District 5, Gaocun, Mengzhuang Town, Huixian City, Xinxiang City, Henan Province Patentee before: Tang Xiaochao |
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| TR01 | Transfer of patent right |