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Bearing and cage thereof

A technology for cages and bearings, applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as easy wear and poor lubrication environment, and achieve the effect of improving the lubrication environment

Inactive Publication Date: 2018-06-08
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the invention is that in the existing bearings, the lubricating environment between the roller and the cage is not good, and it is easy to wear

Method used

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  • Bearing and cage thereof
  • Bearing and cage thereof
  • Bearing and cage thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0030] refer to figure 1 , figure 2 As shown, this embodiment provides a bearing and its cage 10, wherein the bearing includes an inner ring 20 and an outer ring 30 sleeved coaxially, and the cage 10 is coaxially arranged on the inner ring 20 and the outer ring 30 Between, for supporting the roller 40.

[0031] to combine image 3 As shown, the cage 10 includes coaxial and face-to-face support rings 11, the support ring 11 is coaxially provided with an annular groove 11a, the opening of the annular groove 11a faces the other support ring 11 in the axial direction, and the two support rings 11 The openings of the middle annular groove 11a are arranged face to face. The annular groove 11a can be used to accommodate and store lubricant.

[0032] The support ring 11 includes a bottom 111 for forming the bottom wall of the annular groove 11a, and side portions 112 respectively located on both radial sides of the bottom 111 to form the side walls of the annular groove 11a. The...

no. 2 example

[0047] The difference between this embodiment and the first embodiment is that the shape of the connecting portion of the support rings 11 is different, so the connection manner between the two support rings 11 is different.

[0048] In this example, if Figure 6 , Figure 7 As shown, the connecting portion is a connecting flange surface 10d provided at the free end of the side portion 112, wherein the connecting flange surface 10d is located between two adjacent pockets 10b. The two supporting rings 11 are connected to each other through the connecting flange surface 10d. A connecting flange surface 10d may be provided between any two adjacent pockets 10b.

[0049] Wherein, in each supporting ring 11, the connecting flange surface 10d may be located on the opposite side of the side and the other side, or on the side opposite to each other. Such as Figure 6 , Figure 7 , in order to facilitate processing and installation, the connecting flange surface 10d extends from th...

no. 3 example

[0052] In this embodiment, a sealing structure is added on the basis of the first embodiment or the second embodiment.

[0053] refer to Figure 8 As shown, one end of the support ring 11 facing away from the other support ring 11 in the axial direction is provided with a first annular flange 113 protruding radially outward and a second annular flange 114 protruding radially inward. From Figure 8 It can be seen from the schematic cross-sectional view shown in the assembled state that the axially outer end of each support ring 11 (that is, the end facing the outside of the bearing in the axial direction) is provided with a first annular flange 113 and a second annular flange 113 . flange 114 .

[0054] Correspondingly, a first annular groove 31 facing the first annular flange 113 is provided on the inner peripheral surface of the outer ring 30 of the bearing, and the first annular flange 113 is accommodated in the first annular groove 31; the inner ring 20 A second annular ...

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PUM

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Abstract

The invention provides a bearing and a cage thereof. The cage of the bearing comprises support rings which are coaxial and arranged face to face, wherein an annular groove opening to the other supportring is formed coaxially in each support ring; each support ring comprises a bottom for forming the bottom wall of the corresponding annular groove as well as side parts located on two sides in the radial direction of the bottom to form side walls of the corresponding annular groove, and a plurality of pockets are distributed in the circumferential direction of the side parts, so that a ball canbe arranged axially in a pocket manner; the pockets in the side parts of the two sides in the radial direction of each bottom are in one-to-one correspondence for pocket arrangement of one ball. The lubrication environment between the cage and the ball can be improved effectively.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a bearing and a cage thereof. Background technique [0002] Existing bearings generally include an inner ring and an outer ring set coaxially, rollers arranged between the inner and outer rings, and a cage for supporting the rollers. Taking Deep groove ball bearing (DGBB for short) as an example, the cage includes support rings arranged face to face in the axial direction and connected to each other. Pockets, the semicircular pockets of the two supporting rings correspond one to one and enclose the accommodating holes for accommodating the rollers. The two support rings are connected by riveting pins between adjacent semicircular pockets. [0003] In the above cage, the gap between the receiving holes formed by the two support rings and the contact area of ​​the rollers is very small, making it difficult for lubricant to enter the contact area between the two. Even if lubricant enters ...

Claims

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Application Information

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IPC IPC(8): F16C33/38F16C33/66
CPCF16C33/38F16C33/6629F16C33/6681
Inventor 彭祥多贾永川
Owner SCHAEFFLER TECH AG & CO KG
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