CN2042128U - Hollow cylindrical roller bearing with conical inner sleeve - Google Patents
Hollow cylindrical roller bearing with conical inner sleeve Download PDFInfo
- Publication number
- CN2042128U CN2042128U CN 88216590 CN88216590U CN2042128U CN 2042128 U CN2042128 U CN 2042128U CN 88216590 CN88216590 CN 88216590 CN 88216590 U CN88216590 U CN 88216590U CN 2042128 U CN2042128 U CN 2042128U
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- CN
- China
- Prior art keywords
- bearing
- hollow cylindrical
- row
- cylindrical roller
- utility
- 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 discloses a hollow cylindrical roller bearing with conical inner sleeve used for turning the inner ring of the machine, which has single-row and double-row types. The utility model is especially suitable for the main shaft bearing of a precise rotary machine, a milling machine, a lathe, a machining center, a numerical control machine and a flexible processing unit. Because the inner surface of the inner ring has conicity, and thus, the utility model can adjust the radial shrink range when the bearing grinded after working a definite period; the service life of the bearing is prolonged and enhanced; the defect that the present single-row and multi-row hollow circular column roller bearings can not adjust the radial shrink range is overcome.
Description
The utility model is a kind of roller bearing that is applicable to various widely different favourable turn tools, is particularly useful for the main shaft bearing of accurate widely different favourable turn tool and precision machine tool (routine milling machine, lathe, numerical control machine tool, machining center etc.).
Known single-row and multiple row hollow cylindrical roller bearing (routine U. S. Patent 3,930,693 and the patent GG86209983.8 of the People's Republic of China (PRC)) is though have high rigidity, series of advantages such as DN value that highi degree of accuracy is high.But behind the bearing working some cycles, because rolling element--all reasons of wearing and tearing of roller, inner ring and outer ring raceway etc., and the bearing magnitude of interference is diminished, even the gap occurs and influenced the widely different commentaries on classics precision of work mechanism, reduce critical defects such as rigidity, noise increase to some extent, even caused work undesired.
Single-row and the biserial hollow cylindrical roller bearing that provides a kind of hollow cylindrical roller radial interference amount to adjust just is provided the purpose of this utility model, to overcome the existing shortcoming and defect of aforesaid bearing, prolongs and improve the working life of bearing.
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is described further:
Fig. 1 is one of embodiment of the present utility model, 11 is the outer ring of bearing, and 12 for inner ring has the tapering 14 of 1:12, and is with two ribs 15 and centre rib 19, hollow cylindrical roller 13 is a biserial, 21 is the briquetting in the nut 23, and 22 is fastening screw trip bolt, and 24 is middle spacer ring, 25 is two semicircle adjustment rings, 26 is baffle ring, and 27 is jackscrew, and 28 is a main shaft.After bearing working regular period wearing and tearing, radial interference quantitative change hour can be unclamped jackscrew 27, and baffle ring 26 can move right, and semicircular ring 25 can withdraw from.According to situations such as widely different commentaries on classics precision of main shaft and circular runouts, can calculate the match grinding amount of semicircular ring, be reinstalled the original place after wearing into, with the jackscrew on the baffle ring 26 27 fastening again after, can unclamp fastening screw trip bolt 22, adjust nut 23, baffle ring 24 presses to bearing in making, till directly making bearing near semicircular ring 25, but the bearing proper functioning again after the wearing and tearing like this.
Fig. 2 is embodiment two, for the no rib inner rings 12 band taperings 14 in outer ring 11 and the single-row hollow cylindrical roller bearing of two ribs 15 is arranged.
Fig. 3 is embodiment three.The two ribs 16 of outer ring 11 bands, the single-row hollow cylindrical roller bearing of interior astragal tapering 14 no ribs.
Fig. 4 is embodiment four.The two ribs 16 of outer ring 11 bands, the biserial hollow cylindrical roller bearing of interior astragal tapering, no rib.
Fig. 5 is embodiment five.Outer ring 11 no ribs, inner ring 12 is with taperings, and the biserial hollow cylindrical roller bearing of two ribs is arranged.
Fig. 6 is embodiment six.The biserial hollow cylindrical roller bearing that middle spacer ring 17 is arranged between the two ribs of outer ring 11 bands, inner ring 12 band tapering, no rib and two row hollow cylindrical rollers.
Fig. 7 is embodiment seven.Outer ring 11 no ribs have middle spacer ring 18, and inner ring 12 is with taperings, and the biserial hollow cylindrical roller bearing of two ribs is arranged.
Claims (3)
1, a kind of do not have retainer, completely adorn the hollow cylindrical roller bearing of preload, formed by outer ring, inner ring and roller, it is characterized in that the internal surface 14 of inner ring 12 and axle 28 touching positions, have the tapering that can make roller radial interference amount adjustment usefulness.
2, bearing according to claim 1, the tapering that it is characterized in that the internal surface 14 of bearing inner race 12 is 1:10 to 1:20.
3, bearing according to claim 1, the columns that it is characterized in that hollow cylindrical roller 13 are single-row and two kinds of biserials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216590 CN2042128U (en) | 1988-12-30 | 1988-12-30 | Hollow cylindrical roller bearing with conical inner sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216590 CN2042128U (en) | 1988-12-30 | 1988-12-30 | Hollow cylindrical roller bearing with conical inner sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2042128U true CN2042128U (en) | 1989-08-02 |
Family
ID=4849191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88216590 Expired - Lifetime CN2042128U (en) | 1988-12-30 | 1988-12-30 | Hollow cylindrical roller bearing with conical inner sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2042128U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443751C (en) * | 2003-07-25 | 2008-12-17 | Ntn株式会社 | Needle roller thrust bearing |
| CN102785171A (en) * | 2012-08-09 | 2012-11-21 | 绍兴市家度弹簧机械有限公司 | Automatic bearing adjusting mechanism |
| CN102785164A (en) * | 2012-08-09 | 2012-11-21 | 绍兴市家度弹簧机械有限公司 | Main shaft transmission system of vertical-type grinding machine |
| CN104019135A (en) * | 2014-05-08 | 2014-09-03 | 洛阳德润精密机床轴承有限公司 | Double-row short cylindrical roller bearing with outer ring provided with arc-shaped grease filling groove |
| CN105173273A (en) * | 2015-09-26 | 2015-12-23 | 红塔烟草（集团）有限责任公司大理卷烟厂 | Method for prolonging service life of cam roller of packaging machine |
-
1988
- 1988-12-30 CN CN 88216590 patent/CN2042128U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443751C (en) * | 2003-07-25 | 2008-12-17 | Ntn株式会社 | Needle roller thrust bearing |
| CN102785171A (en) * | 2012-08-09 | 2012-11-21 | 绍兴市家度弹簧机械有限公司 | Automatic bearing adjusting mechanism |
| CN102785164A (en) * | 2012-08-09 | 2012-11-21 | 绍兴市家度弹簧机械有限公司 | Main shaft transmission system of vertical-type grinding machine |
| CN102785171B (en) * | 2012-08-09 | 2015-03-11 | 俞家林 | Automatic bearing adjusting mechanism |
| CN102785164B (en) * | 2012-08-09 | 2015-07-01 | 俞家林 | Main shaft transmission system of vertical-type grinding machine |
| CN104019135A (en) * | 2014-05-08 | 2014-09-03 | 洛阳德润精密机床轴承有限公司 | Double-row short cylindrical roller bearing with outer ring provided with arc-shaped grease filling groove |
| CN105173273A (en) * | 2015-09-26 | 2015-12-23 | 红塔烟草（集团）有限责任公司大理卷烟厂 | Method for prolonging service life of cam roller of packaging machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |