CN201802760U - Combined bearing of cylindrical roller and two-way thrust ball - Google Patents
Combined bearing of cylindrical roller and two-way thrust ball Download PDFInfo
- Publication number
- CN201802760U CN201802760U CN2010205600324U CN201020560032U CN201802760U CN 201802760 U CN201802760 U CN 201802760U CN 2010205600324 U CN2010205600324 U CN 2010205600324U CN 201020560032 U CN201020560032 U CN 201020560032U CN 201802760 U CN201802760 U CN 201802760U
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- inner ring
- ring
- external diameter
- outer ring
- retainer
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- Expired - Fee Related
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Abstract
The utility model relates to a combined bearing of a cylindrical roller and a two-way thrust ball, which can improve axial and radial carrying capacity, enhance the inclination rigidity and precision, increase the rotating speed, and prolong the service life. The combined bearing consists of an outer ring, steel balls, an inner ring, fastening screws, retainers, a second inner ring and a radial roller, wherein the outer diameter of the inner ring is arranged to have two layers of steps with different sizes, the second inner ring is axially arranged at one side of the small outer diameter of the inner ring side by side; at least two groups of screw holes are axially and uniformly distributed on the inner ring and the second inner ring in a corresponding manner, and the screw holes are internally provided with fastening screws; the small outer diameter of the inner ring is externally and coaxially provided with the outer ring, and the radial roller is arranged between the inner diameter of the outer ring and the small outer diameter of the inner ring; and the two retainers are coaxially and symmetrically arranged among the two sides of the outer ring and the inner side of the large outer diameter of the inner ring as well as the inner side of the second inner ring, and each retainer is uniformly distributed with three circles of net-shaped pocket holes which are internally provided with the steel balls. With the utility model, the working quality and efficiency are improved, the installation and maintenance are simple and convenient, and the manufacturing cost is low.
Description
Technical field
The utility model relates to a kind of combination bearing, especially a kind of cylindrical roller and bidirectional propulsion ball combination bearing.
Background technique
Cylindrical roller and bidirectional propulsion ball combination bearing mainly are used in the high field of precision prescribed in high precision numerical control turntable, dividing head, military project radar, Aeronautics and Astronautics and measurement and the test.
Original cylindrical roller and bidirectional propulsion roller combination bearing, though axially, radially can bear bigger load simultaneously, because of its structural feature bearing rotating speed can not be high, axially precision improves difficulty.
The model utility content
The utility model for solve original cylindrical roller and bidirectional propulsion set of rollers sympodium forward speed can not height, axially precision improves difficulty, a kind of cylindrical roller and bidirectional propulsion ball combination bearing are provided, guarantee: improve axially, bearing capacity radially, improve inclination rigidity and axial precision, and can improve rotating speed, increase the service life.
The utility model for achieving the above object, by the following technical solutions: the utility model is by the outer ring, steel ball, inner ring, fastening screw trip bolt, retainer, second inner ring, radial roller constitutes.The external diameter of inner ring is set to vary in size two-layerly is step-like, coaxial second inner ring that is set up in parallel of little external diameter one side of inner ring, and the axial corresponding screw hole of uniform at least two groups on the inner ring and second inner ring is provided with fastening screw trip bolt in the screw hole; The outer coaxial outer ring that is provided with of the little external diameter of inner ring is provided with radial roller between the little external diameter of the internal diameter of outer ring and inner ring; Coaxially between the inboard and second inner ring inboard of the big external diameter of the both sides of outer ring and inner ring be symmetrical arranged two retainers, uniform three circle pocket holes are netted on the every retainer, and pocket is provided with steel ball in the hole.
Described inner ring employing does not radially have retainer and completely adorns roller designs, and the little external diameter surface middle part of inner ring is provided with spill plane raceway; The plane is adopted on described outer ring raceway surface, increases the raceway face work area, avoids causing bearing failure because of the part works long hours; Described retainer adopts brass material, can store lubricating grease at the retainer step surface; Described outer ring and inner ring all are provided with through hole, can carry out lubricated again.
Beneficial effect: the utility model compact structure, the bearing capacity height can carry radial load and thrust load simultaneously; Improved the limit speed of bearing, and working time, increase the service life; Also improve the accurate of operation, thereby improved workmanship and efficient; Installation and maintenance are easy, and are cheap.May be used on the high field of precision prescribed.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the general assembly structural representation of a kind of cylindrical roller and bidirectional propulsion ball combination bearing.
Fig. 2 is that retainer is faced with side and cutd open structural representation.
Among Fig. 1,2: outer ring 1, steel ball 2, inner ring 3, fastening screw trip bolt 4, retainer 5, the second inner rings 6, radial roller 7.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As shown in Figure 1, 2, the external diameter of inner ring 3 is set to vary in size two-layerly is step-like, coaxial second inner ring 6 that is set up in parallel of little external diameter one side of inner ring 3, the axial corresponding screw hole of uniform at least two groups is provided with fastening screw trip bolt 4 on the inner ring 3 and second inner ring 6 in the screw hole; The outer coaxial outer ring 1 that is provided with of the little external diameter of inner ring 3 is provided with radial roller 7 between the little external diameter of the internal diameter of outer ring 1 and inner ring 3; Coaxially between inboard and second inner ring, 6 inboards of the big external diameter of the both sides of outer ring 1 and inner ring 3 be symmetrical arranged two retainers 5, uniform three circle pocket holes are netted on the every retainer 5, and steel ball 2 is set in the pocket hole.
Described inner ring 3 employings radially do not have retainer and completely adorn roller designs, and the little external diameter surface middle part of inner ring 3 is provided with spill plane raceway; Described outer ring 1 raceway face adopts the plane, increases the raceway face work area, avoids causing bearing failure because of the part works long hours; Described retainer 5 adopts brass material, can store lubricating grease at retainer 5 step surfaces; Described outer ring 1 and inner ring 3 all are provided with through hole, can carry out lubricated again.
Claims (3)
1. cylindrical roller and bidirectional propulsion ball combination bearing, be by outer ring (1), steel ball (2), inner ring (3), fastening screw trip bolt (4), retainer (5), second inner ring (6), radial roller (7) constitutes, it is characterized in that: the external diameter of inner ring (3) is set to vary in size two-layerly is step-like, coaxial second inner ring (6) that is set up in parallel of little external diameter one side of inner ring (3), inner ring (3) is gone up the axially corresponding screw hole of uniform at least two groups with second inner ring (6), and fastening screw trip bolt (4) is set in the screw hole; The outer coaxial outer ring (1) that is provided with of the little external diameter of inner ring (3) is provided with radial roller (7) between the little external diameter of the internal diameter of outer ring (1) and inner ring (3); Coaxial two retainers (5) that are symmetrical arranged between inboard and second inner ring (6) inboard of the big external diameter of the both sides of outer ring (1) and inner ring (3), every retainer (5) are gone up uniform three and are enclosed the pocket holes and be netted, and steel ball (2) is set in the pocket hole.
2. a kind of cylindrical roller according to claim 1 and bidirectional propulsion ball combination bearing is characterized in that: described inner ring (3) employing does not radially have retainer and completely adorns roller designs, and the little external diameter surface middle part of inner ring (3) is provided with spill plane raceway.
3. a kind of cylindrical roller according to claim 1 and bidirectional propulsion ball combination bearing is characterized in that: described outer ring (1) raceway face adopts the plane, increases the raceway face work area, avoids causing bearing failure because of the part works long hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205600324U CN201802760U (en) | 2010-10-14 | 2010-10-14 | Combined bearing of cylindrical roller and two-way thrust ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205600324U CN201802760U (en) | 2010-10-14 | 2010-10-14 | Combined bearing of cylindrical roller and two-way thrust ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802760U true CN201802760U (en) | 2011-04-20 |
Family
ID=43872261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205600324U Expired - Fee Related CN201802760U (en) | 2010-10-14 | 2010-10-14 | Combined bearing of cylindrical roller and two-way thrust ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557230A (en) * | 2013-11-01 | 2014-02-05 | 瓦房店凯威精工轴承制造有限公司 | High-speed turntable bearing |
| CN104776121A (en) * | 2015-04-13 | 2015-07-15 | 洛阳Lyc轴承有限公司 | Low-torque high-rigidity combined bearing |
-
2010
- 2010-10-14 CN CN2010205600324U patent/CN201802760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557230A (en) * | 2013-11-01 | 2014-02-05 | 瓦房店凯威精工轴承制造有限公司 | High-speed turntable bearing |
| CN104776121A (en) * | 2015-04-13 | 2015-07-15 | 洛阳Lyc轴承有限公司 | Low-torque high-rigidity combined bearing |
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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: 20110420 Termination date: 20171014 |