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Needle roller thrust bearing and retainer

A technology of thrust needle roller bearings and thrust ball bearings, which is applied in the field of cages and thrust needle roller bearings, and can solve problems such as structural separation, inconvenient assembly, and unsealable thrust needle roller bearings, so as to achieve reduced entry, outstanding sealing effect, and reduced The effect of lubricant escape

Inactive Publication Date: 2021-03-09
C&U CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention carries out an innovative design on the thrust needle roller bearing, provides a thrust needle roller bearing with a sealing function, solves the problem that the existing thrust needle roller bearing cannot be sealed, and further overcomes its existing problems Deficiencies of structural separation and inconvenient assembly

Method used

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  • Needle roller thrust bearing and retainer
  • Needle roller thrust bearing and retainer
  • Needle roller thrust bearing and retainer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 as figure 1 and image 3 As shown, this embodiment provides a thrust needle roller 2 bearing, including the first raceway ring 1, the second raceway ring 1, the needle roller 2 and the cage 3, with the opening side of the bearing as the inside, and the cage There is a gap sealing structure between 3 and the inner side of the first raceway ring 1 and the second raceway ring 1, and a labyrinth seal structure is provided between the cage 3 and the outer side of the first raceway ring 1 and the second raceway ring 1. Sealed structure.

[0034] Gap seal structure such as Figure 5 As shown, the inner end of the cage 3 is provided with a sealing head 31, and the sealing head 31 is provided with an extension part 303 facing the first raceway ring 1 and the second raceway ring 1 respectively, and the extension part 303 is provided with There are radial mating surfaces, and the mating surfaces respectively have a gap fit with the first raceway ring 1 and the second ...

Embodiment 2

[0036] Embodiment 2 This embodiment provides a cage 3 , the inner end of which is provided with the first sealing head 31 as described in the first embodiment, and the outer end is provided with the second sealing head 32 as described in the first embodiment.

Embodiment 3

[0037] Example 3 as Figure 6 As shown, this embodiment provides a cage 3, the inner end and the outer end of which are provided with a sealing head 31 as described in Embodiment 1.

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Abstract

The invention provides a needle roller thrust bearing and a retainer, and belong to the technical field of bearings. The needle roller thrust bearing comprises a first raceway ring, a second raceway ring, a needle roller and the retainer, and a gap sealing structure and / or a labyrinth sealing structure are / is arranged between the retainer and the inner side and / or the outer side of each of the first raceway ring and the second raceway ring by taking one side of an opening of the bearing as an inner side. The structures of the two ends of the retainer and the matching relation between the retainer and the raceway ring are improved, sealing of the needle roller thrust bearing is achieved, the use performance of the needle roller thrust bearing is improved, and the service life of the needleroller thrust bearing is prolonged.

Description

technical field [0001] The invention relates to the field of needle roller bearings, in particular to a thrust needle roller bearing and a cage. Background technique [0002] Needle roller bearings have a small cross-section, so the radial structure is compact, and because of their high load bearing capacity, they are especially suitable for support structures with limited radial installation dimensions. [0003] The structure of the existing thrust needle roller bearing is disclosed in Chinese patent CN201120209217.5, which includes a first raceway ring, a second raceway ring, needle rollers and a cage. The first raceway ring and the second raceway ring are arranged on the inner and outer sides of the needle roller and the cage respectively, and the raceway of the first raceway ring and the raceway of the second raceway ring are respectively in contact with the needle rollers. [0004] However, due to the small cross-section of thrust needle roller bearings, it is difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/46F16C33/58F16C33/80
CPCF16C19/46F16C33/583F16C33/80
Inventor 贾亚昌
Owner C&U CO LTD