CN201347961Y - Cylindrical roller bearing with backing board - Google Patents
Cylindrical roller bearing with backing board Download PDFInfo
- Publication number
- CN201347961Y CN201347961Y CNU200820232225XU CN200820232225U CN201347961Y CN 201347961 Y CN201347961 Y CN 201347961Y CN U200820232225X U CNU200820232225X U CN U200820232225XU CN 200820232225 U CN200820232225 U CN 200820232225U CN 201347961 Y CN201347961 Y CN 201347961Y
- Authority
- CN
- China
- Prior art keywords
- ring
- rollers
- inner ring
- cylindrical roller
- 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 - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001563 bainite Inorganic materials 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a cylindrical roller bearing with backing board, which comprises an integral outer ring (01), an integral inner ring (02), flat retainer rings (12) which are arranged on the two end surfaces of the bearing, three rows of rollers between the inner ring and the outer ring and a retainer which is used for limiting the rollers, wherein the flat retainer rings (12) are pressed against the end surface of the inner ring (02), and the radial dimension of the flat retainer ring is larger than that of the inner ring (02), thereby the flat retainer rings are used as retaining sides of the rollers on the outer side, the outer edges of the flat retainer rings (12) are concentrically provided with a ring-shaped thrust backing board (11), and the outer diameter of the thrust backing plate (11) is extended to the ring-shaped flange of the end surface of the outer ring (01), the ring-shaped flange is projected along the axial direction. The cylindrical roller bearing has reasonable structure, safety and reliability, increases the service life, and is applicable to cold mills in high speed operation.
Description
Technical Field
The present invention relates to a cylindrical roller bearing.
Background
Cylindrical roller bearings, when used on work rolls, tend to have a thickened outer ring so that the pressure on the work roll is transmitted through the intermediate roll to the backup roll and through the saddle system to the frame. The bearings in the prior art are mostly made of carburizing steel, so that the price is high and the structure is not reasonable.
Disclosure of Invention
The invention aims to provide a cylindrical roller bearing for a cold rolling mill, which has the advantages of excellent material selection, combination of a surface modification technology and a new design concept, prolonged service life, safety and reliability.
The invention relates to a cylindrical roller bearing with a base plate, which comprises an integral outer ring, an integral inner ring, flat retainer rings positioned on two end faces of the bearing, three rows of rollers between the inner ring and the outer ring, and a retainer for limiting the rollers. Wherein the flat retainer ring abuts against the end face of the inner ring, and has a radial dimension larger than that of the inner ring, thereby serving as a rib of the outer roller. An annular thrust backing plate is concentrically arranged at the outer edge of the flat retainer ring, and the outer diameter of the thrust backing plate extends to an annular flange which is protruded along the axial direction on the end face of the outer ring.
The cylindrical roller bearing provided with the base plate is improved in that three rows of rollers are arranged at intervals, one row of rollers positioned on the outer side is limited in the second retainer, and the other two rows of rollers are limited by the first retainer; two parallel annular oil discharge grooves are arranged in the middle of the inner ring inner hole cylindrical surface.
The bearing of the invention has good material selection, adopts GCr15 to quench by bainite, can improve the rated load of the bearing, and prolong the service life of the bearing; the rated service life of the bearing can be prolonged by more than two times; structural design is reasonable, resources are saved.
Drawings
FIG. 1 is a schematic view of a half-section structure of a bearing according to the present invention.
Detailed Description
As shown in fig. 1, a cylindrical roller bearing provided with a shim plate includes an integral outer race 01, an integral inner race 02, retainer rings 12 at both end faces of the bearing, three rows of rollers between the inner and outer races, and a cage for confining the rollers. Wherein the flat collar 12 abuts against the end face of the inner ring 02 and has a radial dimension greater than that of the inner ring 02, thereby acting as a flange for the outer roller.
The important improvement of the invention is that an annular thrust pad 11 is concentrically arranged at the outer edge of the flat retainer ring 12, and the outer diameter of the thrust pad 11 extends to an annular flange which axially protrudes from the end face of the outer ring 01. Furthermore, three rows of rollers of the bearing are spaced, the outer row of rollers being defined in the second cage 26, the other two rows of rollers being defined by the first cage 06; two parallel annular oil discharge grooves are arranged in the middle of the inner hole cylindrical surface of the inner ring 02.
The bearing comprises an outer ring 01, an outer ring 02, rolling bodies, carburizing steel GCr15 steel and bainite quenching, wherein the inner ring and the outer ring are not provided with flanges, the outer ring is thickened and is in a special shape, the inner ring is in a circular ring shape, the inner diameter of the inner ring is provided with two rows of oil holes to ensure good lubrication, the two sides of the inner ring are provided with the flat check rings 12, and the two sides between the inner ring and the outer ring are provided with the thrust bearing plates so as to be arranged in a bearing box to play a role in sealing.
Claims (2)
1. A cylindrical roller bearing provided with a base plate is characterized by comprising an integral outer ring (01), an integral inner ring (02), plain rings (12) positioned on two end faces of the bearing, three rows of rollers between the inner ring and the outer ring, and a retainer for limiting the rollers; wherein,
the flat retainer ring (12) abuts against the end face of the inner ring (02), and the radial size of the flat retainer ring is larger than that of the inner ring (02), so that the flat retainer ring is used as a rib of an outer roller;
an annular thrust backing plate (11) is concentrically arranged at the outer edge of the flat retainer ring (12), and the outer diameter of the thrust backing plate (11) extends to an annular flange which protrudes along the axial direction on the end face of the outer ring (01).
2. Cylindrical roller bearing with a shim plate according to claim 1, characterised in that three rows of rollers are arranged at intervals, the outer row of rollers being defined in the second cage (26) and the other two rows of rollers being defined by the first cage (06); two parallel annular oil discharge grooves are formed in the middle of the inner hole cylindrical surface of the inner ring (02).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232225XU CN201347961Y (en) | 2008-12-26 | 2008-12-26 | Cylindrical roller bearing with backing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232225XU CN201347961Y (en) | 2008-12-26 | 2008-12-26 | Cylindrical roller bearing with backing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347961Y true CN201347961Y (en) | 2009-11-18 |
Family
ID=41367431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820232225XU Expired - Fee Related CN201347961Y (en) | 2008-12-26 | 2008-12-26 | Cylindrical roller bearing with backing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347961Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742537A (en) * | 2013-12-27 | 2014-04-23 | 瓦房店轴承集团有限责任公司 | Dual-crown externally embedded trapezoidal lock type high-speed bearing integrated retainer |
-
2008
- 2008-12-26 CN CNU200820232225XU patent/CN201347961Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742537A (en) * | 2013-12-27 | 2014-04-23 | 瓦房店轴承集团有限责任公司 | Dual-crown externally embedded trapezoidal lock type high-speed bearing integrated retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20100126 |