High-sealing low-friction one-way bearing

A one-way bearing, low-friction technology, applied in the direction of bearing components, shafts and bearings, rolling resistance optimization, etc., can solve the problem of not being able to have both sealing performance and speed, and achieve the effect of reducing friction

Active Publication Date: 2021-03-09
HANGZHOU C & U BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the disadvantage of not being able to ha

Method used

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  • High-sealing low-friction one-way bearing
  • High-sealing low-friction one-way bearing
  • High-sealing low-friction one-way bearing

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] A unidirectional bearing of high-density, low friction, such as figure 1 , 2 As shown, the one-way bearing includes a bearing outer casing 1 and a bearing inner sleeve 2, and the bearing outer casing 1 is provided with a resigning groove 3, and the bearing inside 2 corresponds to the position of the restricted groove 3, corresponding to the sealing groove 4. The bearing outer casing 1 and the bearing inner sleeve 2 are provided with a seal ring 5, and the material of the seal is nylon. Since the sealing ring 5 is annular, in the process of its motion, a certain circumferential change is generated, and the material of nylon can support this deformation so that it always adapts to the bearing. The sealing ring 5 includes a restricted sheet 6 and a bending sheet 7, a limiting sheet 6, and a bending sheet 7 integrally formed. This structure can reduce the process complexity of the seal 5 and improve productivity. The limit sheet 6 is elastically coupled to ...

Example Embodiment

[0034] Example 2:

[0035] The present embodiment also has the following characteristics on the basis of Example 1:

[0036] Such as figure 2 As shown, the bearing inner sleeve 2 is provided with an auxiliary sealing sheet 13 in the inner side of the sealing groove 4, and the auxiliary sealing sheet 13 is fixed to the bearing inner sleeve 2, and the other end is provided with an avoidance gap 14 between the other end and the bearing outer casing 1. This structure can increase a certain sealing property in the case of abuting the fold 8 out of the sealing groove 4 in the bearing motion state.

Example Embodiment

[0037] Example 3:

[0038] The present embodiment also has the following characteristics on the basis of Example 1:

[0039] Such as image 3 , 4 As shown, a positioning key groove 15 is provided on the bearing inner sleeve 2, and the positioning keyway 15 is semi-circular, and the depth of the positioning keyway 15 is half the thickness of the bearing inside of the bearing. The thickness of the inner ring is more uniform, and it is possible to change the stress distribution of the bearing inner ring to prevent the inner ring from deforming due to stress, extending the bond service life; Second, the inner diameter of the inner ring has continuity, and can effectively prevent the grinding wheel during processing Radial jump, improve the temperature of the inner diameter roundness.

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Abstract

The invention discloses a high-sealing low-friction one-way bearing. The defect that the existing sealing performance and rotating speed cannot be balanced is overcome. The high-sealing low-friction one-way bearing comprises a bearing outer sleeve and a bearing inner sleeve, a limiting groove is formed in the inner edge, close to the end face, of the bearing outer sleeve, a corresponding sealing groove is formed in the position, corresponding to the limiting groove, of the bearing inner sleeve, a sealing ring is arranged between the bearing outer sleeve and the bearing inner sleeve, and the sealing ring comprises a limiting piece and a bent piece which are elastically connected. The tail end of the limiting piece is fixedly connected to the limiting groove, the bent piece is provided withan abutting folded corner, the abutting folded corner abuts against the interior of the sealing groove, the tail end of the bent piece points to the limiting piece, the bent piece and the limiting piece form a lubricating notch, and the lubricating notch is formed in the side away from the end face of the bearing. According to the bearing, the sealing ring is slightly separated from the bearing inner sleeve through the sealing ring in a high-speed rotating state, so that the friction force is reduced, and the bearing can adapt to the working condition of high-speed rotation.

Description

technical field [0001] The invention relates to a sealing structure of a bearing, more specifically, it relates to a one-way bearing with high sealing and low friction. Background technique [0002] Bearing installation sealing device is something in recent years, the previous bearings are open, in order to ensure the lubrication and dustproof of the bearing, the sealing device is set on the shaft at both ends of the bearing. With the development of industry, especially the food industry, the popularization of modern office machinery and home appliances, it is required that the design of the equipment should be compact, the weight should be reduced, and the non-contact seal of the four rolling bearings should be prevented from leaking and air leakage. This has led to the emergence of bearings with sealing devices bearings. [0003] Common sealing rings are rubber or engineering plastics, and there are also sealing rings (or dust covers) punched from steel plates. The seali...

Claims

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Application Information

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IPC IPC(8): F16C33/78F16C33/66F16C33/58
CPCF16C33/7816F16C33/783F16C33/7833F16C33/7826F16C33/7863F16C33/6618F16C33/6629F16C33/58Y02T10/86
Inventor 阎昌春肖鹤吴俊成强亚宁赵昕伟朱心愿
Owner HANGZHOU C & U BEARING
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