CN203009562U - Bolt idler wheel bearing - Google Patents
Bolt idler wheel bearing Download PDFInfo
- Publication number
- CN203009562U CN203009562U CN 201220686518 CN201220686518U CN203009562U CN 203009562 U CN203009562 U CN 203009562U CN 201220686518 CN201220686518 CN 201220686518 CN 201220686518 U CN201220686518 U CN 201220686518U CN 203009562 U CN203009562 U CN 203009562U
- Authority
- CN
- China
- Prior art keywords
- bolt
- inner ring
- short inner
- outer ring
- roller bearing
- 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 - Lifetime
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Abstract
The utility model relates to a bolt idler wheel bearing and particularly relates to a bolt type sealed double-row fully-filled angular contact ball bearing. The bolt idler wheel bearing comprises an outer ring, a bolt body, a short inner ring and two rows of steel balls, and is characterized in that the bolt body comprises a head part, a shaft neck part and a thread part; each one of the head part of the bolt body and the short inner ring is respectively provided with an inner ring channel; the short inner ring is sleeved at the shaft neck part of the bolt body and a narrow end face of the short inner ring is abutted against a narrow end face of the head part of the bolt body; the short inner ring is in interference fit with the shaft neck part of the bolt body; two outer ring channels are arranged on the inner wall of the outer ring; and the steel balls are fully filled between the inner and outer ring channels in two rows. According to the bolt idler wheel bearing disclosed by the utility model, a radial loading capability is equal to that of a fully-filled cylindrical roller bearing; and a comprehensive loading capability is improved by more than 70% when being compared with a non-fully-filled type double-row angular contact ball bearing.
Description
Technical field
The utility model relates to a kind of bolt roller bearing, and especially a kind of screw bolt-type sealed double-row completely fills angular contact ball roller bearing.
Background technique
Bolt roller bearing is the precision optical machinery element, can realize quick, the simple and easy installation of bearing on the equipment rack plane by bolt axis.Existing screw bolt-type roller bearing rolling element mostly is needle roller or single, double line column roller, its full complement can bear heavier radial load, but can not bear in some heavy machine tool or heavy transmission equipment movable workbench process due to the larger heeling moment and the bi-directional axial load that misalign, crooked or impact in short-term produces, be subject to simultaneously self structure, be difficult to realize reliable sealing.
Summary of the invention
The utility model provides a kind of screw bolt-type sealed double-row that bears large axially load and tilting moment completely to fill angular contact ball roller bearing for the bi-directional axial load and the heeling moment that exist in the practical application of bolt roller bearing.
For achieving the above object, the utility model is by the following technical solutions:
A kind of bolt roller bearing, comprise outer ring, the body of bolt, short inner ring and two row steel balls, it is characterized in that: the body of bolt comprises head, collar and screw section, establish respectively a bear inner ring grooved railway on the head of the body of bolt and short inner ring, short inner ring is enclosed within the collar of the body of bolt and the narrow end surface of short inner ring and the narrow end surface of body of bolt head and offsets, the collar interference fit of short inner ring and the body of bolt, the inwall of outer ring are provided with two outer ring raceway, and steel ball is filled in and is two row between inside and outside circle raceway groove and completely fills shape.
Technique scheme can also be further improved by following technical measures.
The outer ring has crown or cylindrical outer surface, has crown correction of the flank shape outer surface bearing and can avoid due to the edge stress of roller with respect to supporting track inclination generation.
This bolt roller bearing is angular contact ball bearing, and wrapping angle is 20 °-30 °.
The large end face end of short inner ring protrudes cycle surface, the shaft shoulder use when installing as bearing and when guaranteeing bearing working with this narrow end surface of the head of the narrow end surface of short inner ring and the body of bolt closely fit together.
The large end face end of body of bolt head protrudes cycle surface, is easy to the setting of Sealing sealing lip.
The center of the large end face end of body of bolt head is provided with installs the auxiliary inner hexagonal hole of using.
Be provided with a contact rubber seal circle between one end of outer ring and the head of the body of bolt, be provided with another contact rubber seal circle between the other end of outer ring and short inner ring.
Abovementioned technology can be selected a use, also use capable of being combined.
Radial load ability of the present utility model is suitable with full-complement cylinder roller bearing, and the combined load ability improves more than 70% than non-full dress type double-row angular contact bal bearing structure.
The utility model adopts and completely fills ball bearing structure, has more seal ring setting position than full dress roller bearing, is conducive to realize reliable sealing.Further, have more internal lubrication fat storage area than full dress roller bearing, the bearing front inside of dispatching from the factory is filled out lubricating grease in advance, does not need in lifetime to lubricate again.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 1, a kind of bolt roller bearing comprises outer ring 1, the body of bolt, short inner ring 3 and two row steel balls 4.The body of bolt comprises head 21, collar 22 and is used for bearings mounted screw section 23, establish respectively a bear inner ring grooved railway 24,31 on the head 21 of the body of bolt and short inner ring 3, short inner ring 3 is enclosed within the collar 22 of the body of bolt and the narrow end surface 33 of short inner ring 3 and the narrow end surface 26 of body of bolt head 21 and offsets, collar 22 interference fit of short inner ring 3 and the body of bolt, the inwall of outer ring 1 is provided with two outer ring raceway 11, and steel ball 4 is filled in and is two row between inside and outside circle raceway groove and completely fills shape.
This bolt roller bearing is angular contact ball bearing, and wrapping angle a is 20 °-30 °.
The large end face end 32 of short inner ring 2 protrudes the end face 12 of outer ring 1.Shaft shoulder when short inner ring 3 large end face ends 32 are installed as bearing use and when guaranteeing bearing working with this narrow end surface 26 of narrow end surface 33 and the head 21 of the body of bolt of short inner ring 3 closely fit together.
The large end face end 25 of body of bolt head 21 protrudes other end, outer ring 13, is easy to the setting of Sealing sealing lip.
The center of the large end face end 25 of body of bolt head 21 is provided with installs the auxiliary inner hexagonal hole 27 of using.
Be provided with a contact rubber seal circle 5 between one end of outer ring 1 and the head 21 of the body of bolt, be provided with another contact rubber seal circle 6 between the other end of outer ring 1 and short inner ring 3.Dispatch from the factory fore bearing inside is filled out lubricating grease in advance, and bearing life does not need in the phase to lubricate again.
The bearing pack timing, fill up steel ball 4 in the space that the raceway groove 24 of the body of bolt and 1 left side, outer ring (as shown in the figure) raceway groove 11 form, occupy steel ball 4 in the 1 right side raceway groove 11 of outer ring, then short inner ring 3 is pressed in the incircle that right side steel ball group forms and makes the narrow end surface 33 of short inner ring 3 contact with the narrow end surface 26 of the head 21 of the body of bolt through body of bolt collar 22 and offset.
Be only below that the specific embodiment in the utility model is illustrated, every equivalent transformation or modification of making according to the design concept in the utility model all should be thought to fall into protection domain of the present utility model.
Claims (7)
1. bolt roller bearing, comprise outer ring, the body of bolt, short inner ring and two row steel balls, it is characterized in that: the body of bolt comprises head, collar and screw section, establish respectively a bear inner ring grooved railway on the head of the body of bolt and short inner ring, short inner ring is enclosed within the collar of the body of bolt and the narrow end surface of short inner ring and the narrow end surface of body of bolt head and offsets, the collar interference fit of short inner ring and the body of bolt, the inwall of outer ring is provided with two outer ring raceway, and steel ball is filled in and is two row between inside and outside circle raceway groove and completely fills shape.
2. bolt roller bearing according to claim 1, it is characterized in that: the outer ring has crown or cylindrical outer surface.
3. bolt roller bearing according to claim 1, it is characterized in that: this bolt roller bearing is angular contact ball bearing, wrapping angle is 20 °-30 °.
4. bolt roller bearing according to claim 1, is characterized in that: the large end face end protrusion cycle surface of short inner ring.
5. bolt roller bearing according to claim 1, is characterized in that: the large end face end protrusion cycle surface of body of bolt head.
6. bolt roller bearing according to claim 1 is characterized in that: the center of the large end face end of body of bolt head is provided with installs the auxiliary inner hexagonal hole of using.
7. bolt roller bearing according to claim 1, is characterized in that: be provided with a contact rubber seal circle between an end of outer ring and the head of the body of bolt, be provided with another contact rubber seal circle between the other end of outer ring and short inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686518 CN203009562U (en) | 2012-12-12 | 2012-12-12 | Bolt idler wheel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686518 CN203009562U (en) | 2012-12-12 | 2012-12-12 | Bolt idler wheel bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009562U true CN203009562U (en) | 2013-06-19 |
Family
ID=48601159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220686518 Expired - Lifetime CN203009562U (en) | 2012-12-12 | 2012-12-12 | Bolt idler wheel bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996622A (en) * | 2012-12-12 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Stud type track roller bearing |
| CN109715962A (en) * | 2016-09-21 | 2019-05-03 | 株式会社Ｔｏｋ | Double-row type ball bearing |
-
2012
- 2012-12-12 CN CN 201220686518 patent/CN203009562U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996622A (en) * | 2012-12-12 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Stud type track roller bearing |
| CN109715962A (en) * | 2016-09-21 | 2019-05-03 | 株式会社Ｔｏｋ | Double-row type ball bearing |
| CN109715962B (en) * | 2016-09-21 | 2021-06-01 | 株式会社Ｔｏｋ | Double-row ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |