CN205136393U - Ready -package gyro wheel bearing - Google Patents
Ready -package gyro wheel bearing Download PDFInfo
- Publication number
- CN205136393U CN205136393U CN201520939020.5U CN201520939020U CN205136393U CN 205136393 U CN205136393 U CN 205136393U CN 201520939020 U CN201520939020 U CN 201520939020U CN 205136393 U CN205136393 U CN 205136393U
- Authority
- CN
- China
- Prior art keywords
- seal
- ring
- shaft part
- ball
- inner ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a ready -package gyro wheel bearing, including heavy -walled bearing inner race, dabber and roller, the dabber includes and corresponds complex inner circle shaft part with bearing inner race to and stretch out bearing inner race's assembly shaft part, the roller assembles between the inner circle shaft part of bearing inner race and dabber, the centre of turning circle axis eccentric settings of centre of turning circle axis and inner circle shaft part of assembly shaft part. The utility model discloses a dabber directly adopts the eccentric shaft design, has compact structure, the swift advantage of simple to operate.
Description
Technical field
The utility model relates to technical field of bearings, is specifically a kind of roller bearing.
Background technique
Roller bearing is the rolling bearing that outer ring adopts the thicker design of collar wall, and the outer diameter face of roller has cylindrical and arc, can coordinate according to use occasion design with roller surface.As shown in Figure 1, existing roller bearing is
full-complement cylinder roller bearingits main structure is: comprise bearing outer ring 1, mandrel 2, rolling element 3(be cylindrical roller), eccentric bushing 14 and back-up ring 15, cylindrical roller to be assemblied between bearing outer ring and mandrel and through back-up ring axial limiting, mandrel 2 is bolt axis, not only as the inner ring of bearing, facilitate the installation of bearing, on mandrel 2, cover has eccentric bushing, and eccentric bushing is for regulating the offset of bearing simultaneously.
There is following defect in the roller bearing of said structure: 1) mandrel adopts eccentric bushing eccentric adjustment amount, there is complex structure, installs inconvenient and that cost of production is high defect.
2) adopt cylindrical roller and full type, therefore bearing rotating speed is low, friction torque is large, is not suitable for the working condition needing underloading, high speed and running noise low, is unfavorable for lubrication and works under worst hot case.
Summary of the invention
The present utility model object: for overcoming the defect that prior art exists, the utility model provides a kind of mandrel directly to adopt eccentric shaft to design, the ready-package roller bearing of compact structure.
For achieving the above object, the utility model provides following technological scheme: a kind of ready-package roller bearing, include the bearing outer ring of heavy wall, mandrel and roller, described mandrel comprises the inner ring shaft part with bearing outer ring corresponding matching, and the assembling shaft part of projecting shaft bearing outer-ring, roller is assemblied between the inner ring shaft part of bearing outer ring and mandrel, it is characterized in that: the gyration center axis of described assembling shaft part and the gyration center axis eccentric setting of inner ring shaft part.
By adopting technique scheme, mandrel directly designs for eccentric shaft, and realize eccentric installation, omit eccentric bushing, reduce component, structure is more simply compact, facilitates the assembling of roller bearing.
The utility model is set to further: the outer circle wall of described inner ring shaft part is provided with inner ring ball race, the inner peripheral wall of bearing outer ring is provided with outer ring ball race, inner ring ball race and outer ring ball race corresponding matching form the raceway of roller guide, described roller is ball, and ball is assemblied in raceway.
By adopting technique scheme, changing roller bearing in the past adopts cylindrical roller to be rolling element, roller bearing is designed to ball bearing, the running speed of effective raising roller bearing and run stability, reduce the noise of running, be more applicable to light duty and use, and adopt raceway to the guiding of ball and assembling, eliminate the back-up ring design of cylindrical roller in the past, more compact in structure; Inner ring ball race is machine shaping on the inner ring shaft part of mandrel directly, and structure is more compact; Change the structure of roller bearing in the past, make under light duty, form new roller bearing Structural design idea.
The utility model is set to further: be also provided with retainer between described bearing outer ring and mandrel, ball is assemblied in raceway through retainer.
By adopting technique scheme, ball adopts retainer to guide, and operates more reliable and stable.
The utility model is set to further: the inner ring shaft part of described mandrel is provided with at least two row inner ring ball raceway grooves, corresponding bearing outer ring is provided with at least two row outer ring ball raceway grooves, inner ring ball raceway groove coordinates with outer ring ball raceway groove one_to_one corresponding, is often equipped with a row ball in row raceway.
By adopting technique scheme, improve the load-carrying ability of roller bearing to a certain extent.
The utility model is set to further: the axial two-port of described bearing outer ring is provided with seal ring, the external diameter end of seal ring and the inner peripheral surface of bearing outer ring are sealed and matched, the inner-diameter end of seal ring is provided with rubber seal lip, rubber seal lip includes towards axially extended interior sealing lip and the outer seal lip towards internal side diameter extension, described outer seal lip is positioned at the inner-diameter end of sealing lip, interior sealing lip and outer seal lip form short slot, the outer peripheral surface of described inner ring shaft part is provided with the seal groove coordinated with sealing lip, seal groove is the groove of U-shaped, seal groove has two axial ends, described outer seal lip stretches in described seal groove and is sealed and matched, described interior sealing lip coordinates with the outer peripheral surface clearance seal of inner ring shaft part, the inner shafts of short slot and seal groove is sealed and matched to the shaft shoulder portion of end.
By adopting technique scheme, seal ring improves the sealability of roller bearing, improves working life and the functional reliability of roller bearing, adopts double-sealing lip to coordinate with seal groove, forms labyrinth sealing, have the advantage of good sealing effect.
The utility model is set to further: the outside axial end of described seal groove is connected with radial sealing surfaces, and the axis outside of described outboard seal lip has stepped slot, and forms the outer end radial seal end face with radial sealing surfaces corresponding matching.
By adopting technique scheme, being sealed and matched in the axis outside radial sealing surfaces cut out on outer end radial seal end face and inner ring shaft part of outboard seal lip, improving sealing surface length, improve sealing effect.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is prior art roller bearing structural representation;
Fig. 2 the utility model specific embodiment ready-package roller bearing structural representation;
Fig. 3 is the partial enlarged view of part A in Fig. 2.
Embodiment
See accompanying drawing 2, a kind of ready-package roller bearing disclosed in the utility model, include the bearing outer ring 1 of heavy wall, mandrel 2 and roller 3, described mandrel 2 comprises the inner ring shaft part 21 with bearing outer ring 1 corresponding matching, and the assembling shaft part 22 of projecting shaft bearing outer-ring 1, roller 3 is assemblied between the inner ring shaft part 21 of bearing outer ring 1 and mandrel 2, the gyration center axis of described assembling shaft part 22 and the gyration center axis eccentric setting of inner ring shaft part 21, and in figure, respective identification goes out offset is e.Mandrel directly designs for eccentric shaft, and realize eccentric installation, omit eccentric bushing, reduce component, structure is more simply compact, facilitates the assembling of roller bearing.
In this specific embodiment, roller bearing adopts steel ball as roll piece, the outer circle wall of described inner ring shaft part 21 is provided with inner ring ball race 211, the inner peripheral wall of bearing outer ring 1 is provided with outer ring ball race 111, inner ring ball race 211 and outer ring ball race 111 corresponding matching form the raceway of roller guide, described roller 3 is ball, and ball 3 is assemblied in raceway.Changing roller bearing in the past adopts cylindrical roller to be rolling element, roller bearing is designed to ball bearing, the running speed of effective raising roller bearing and run stability, reduce the noise of running, more be applicable to light duty use, and adopt raceway to the guiding of ball and assembling, and eliminate the back-up ring design of cylindrical roller in the past, more compact in structure; Inner ring ball race is machine shaping on the inner ring shaft part of mandrel directly, and structure is more compact; Change the structure of roller bearing in the past, make under light duty, form new roller bearing Structural design idea.Also be provided with retainer 4 between described bearing outer ring 1 and mandrel 2, ball 3 is assemblied in raceway through retainer 4.Retainer realization, to the guiding of ball and maintenance, operates more reliable and stable.The inner ring shaft part 21 of described mandrel 2 is provided with at least two row inner ring ball raceway grooves, and corresponding bearing outer ring 1 is provided with at least two row outer ring ball raceway grooves, and inner ring ball raceway groove coordinates with outer ring ball raceway groove one_to_one corresponding, is often equipped with a row ball in row raceway.
Usually the roller bearing of this high speed operation needs to have reliable sealability, therefore, as shown in Figures 2 and 3, the axial two-port of described bearing outer ring 1 is provided with seal ring 5, the inner peripheral surface of bearing outer ring 1 is provided with dustproof groove 12, the external diameter end of seal ring 5 is provided with dust excluder lips 51, and dust excluder lips 51 is inlaid in dustproof groove 12, and the inner peripheral surface of the external diameter end and bearing outer ring 1 that realize seal ring 5 is sealed and matched, the inner-diameter end of seal ring 5 is provided with rubber seal lip, rubber seal lip includes towards axially extended interior sealing lip 52 and the outer seal lip 53 towards internal side diameter extension, described outer seal lip 53 is positioned at the inner-diameter end of sealing lip 52, interior sealing lip 52 forms short slot 54 with outer seal lip 53, the outer peripheral surface of described inner ring shaft part 21 is provided with the seal groove 212 coordinated with sealing lip, seal groove 212 is the groove of U-shaped, seal groove 212 has two axial ends, described outer seal lip 53 stretches in described seal groove 212 and is sealed and matched, described interior sealing lip 52 coordinates with the outer peripheral surface clearance seal of inner ring shaft part 21, short slot 54 is sealed and matched with the shaft shoulder portion 213 at inner side axial end 2121 place of seal groove 212.The axis outside of described outboard seal lip 53 has stepped slot, and forms outer end radial seal end face 531, and the outside axial end 2122 of described seal groove 212 is connected with the radial sealing surfaces 214 with outer end radial seal end face 531 corresponding matching.Be sealed and matched in the axis outside radial sealing surfaces cut out on outer end radial seal end face and inner ring shaft part of outboard seal lip, improve sealing surface length, improve sealing effect, realize reliable labyrinth sealing, there is the advantage of good sealing effect.
Claims (6)
1. a ready-package roller bearing, include the bearing outer ring of heavy wall, mandrel and roller, described mandrel comprises the inner ring shaft part with bearing outer ring corresponding matching, and the assembling shaft part of projecting shaft bearing outer-ring, roller is assemblied between the inner ring shaft part of bearing outer ring and mandrel, it is characterized in that: the gyration center axis of described assembling shaft part and the gyration center axis eccentric setting of inner ring shaft part.
2. ready-package roller bearing according to claim 1, it is characterized in that: the outer circle wall of described inner ring shaft part is provided with inner ring ball race, the inner peripheral wall of bearing outer ring is provided with outer ring ball race, inner ring ball race and outer ring ball race corresponding matching form the raceway of roller guide, described roller is ball, and ball is assemblied in raceway.
3. ready-package roller bearing according to claim 2, is characterized in that: be also provided with retainer between described bearing outer ring and mandrel, ball is assemblied in raceway through retainer.
4. ready-package roller bearing according to Claims 2 or 3, it is characterized in that: the inner ring shaft part of described mandrel is provided with at least two row inner ring ball raceway grooves, corresponding bearing outer ring is provided with at least two row outer ring ball raceway grooves, inner ring ball raceway groove coordinates with outer ring ball raceway groove one_to_one corresponding, is often equipped with a row ball in row raceway.
5. ready-package roller bearing according to claim 1 or 2 or 3, it is characterized in that: the axial two-port of described bearing outer ring is provided with seal ring, the external diameter end of seal ring and the inner peripheral surface of bearing outer ring are sealed and matched, the inner-diameter end of seal ring is provided with rubber seal lip, rubber seal lip includes towards axially extended interior sealing lip and the outer seal lip towards internal side diameter extension, described outer seal lip is positioned at the inner-diameter end of sealing lip, interior sealing lip and outer seal lip form short slot, the outer peripheral surface of described inner ring shaft part is provided with the seal groove coordinated with sealing lip, seal groove is the groove of U-shaped, seal groove has two axial ends, described outer seal lip stretches in described seal groove and is sealed and matched, described interior sealing lip coordinates with the outer peripheral surface clearance seal of inner ring shaft part, the inner shafts of short slot and seal groove is sealed and matched to the shaft shoulder portion of end.
6. ready-package roller bearing according to claim 5, it is characterized in that: the outside axial end of described seal groove is connected with radial sealing surfaces, the axis outside of described outboard seal lip has stepped slot, and forms the outer end radial seal end face with radial sealing surfaces corresponding matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520939020.5U CN205136393U (en) | 2015-11-23 | 2015-11-23 | Ready -package gyro wheel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520939020.5U CN205136393U (en) | 2015-11-23 | 2015-11-23 | Ready -package gyro wheel bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136393U true CN205136393U (en) | 2016-04-06 |
Family
ID=55622191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520939020.5U Expired - Fee Related CN205136393U (en) | 2015-11-23 | 2015-11-23 | Ready -package gyro wheel bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086705A (en) * | 2017-05-27 | 2017-08-22 | 杭州驰创机械有限公司 | A kind of brushless, permanently high-speed electric expreess locomotive of use integral bearing |
| CN110486374A (en) * | 2019-07-31 | 2019-11-22 | 无锡诚石轴承有限公司 | A kind of multi-diameter shaft bearing arrangement |
-
2015
- 2015-11-23 CN CN201520939020.5U patent/CN205136393U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086705A (en) * | 2017-05-27 | 2017-08-22 | 杭州驰创机械有限公司 | A kind of brushless, permanently high-speed electric expreess locomotive of use integral bearing |
| CN110486374A (en) * | 2019-07-31 | 2019-11-22 | 无锡诚石轴承有限公司 | A kind of multi-diameter shaft bearing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161123 |