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Bearing and sealing device

A sealing device and bearing sealing technology, which is applied to the sealing of bearing components, shafts and bearings, and engines, and can solve the problems of low roughness, strict requirements for dust rings, and high dimensional accuracy requirements

Inactive Publication Date: 2018-09-28
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sealing device has very strict requirements on the dust-proof ring 20. The dust-proof ring 20 must be made of corrosion-resistant metal materials. The dust-proof ring 20 must also meet relatively low roughness and have high requirements for dimensional accuracy.
Therefore, the manufacturing cost of the sealing device is high

Method used

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Embodiment Construction

[0036] It can be seen from the background art that a bearing sealing device with a dust-proof ring has good sealing performance. However, the sealing device has strict requirements on the dust-proof ring, which must be made of corrosion-resistant metal materials. During the operation of the bearing, the contact part of the sealing device and the dust-proof ring will have sliding contact, so the dust-proof ring needs to meet a relatively low roughness, and the requirement for the dimensional accuracy of the dust-proof ring is also high. Therefore, the manufacturing cost of the sealing device is high.

[0037] In order to reduce the cost of the sealing device, the embodiment of the present invention provides a bearing and a sealing device. The technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, The described embodiments are only some, ...

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Abstract

The invention provides a bearing and a sealing device. The sealing device is annular as a whole. The sealing device is provided with pumping grooves. An axial opening of each pumping groove is locatedon the outer end face of the sealing device. Each pumping groove comprises pumping side walls with the direction far away from the rotation direction of the sealing device. The included angle betweeneach pumping side wall and the cross section of the corresponding pumping groove is an acute angle. According to the bearing and the sealing device, the pumping grooves are formed, cement, dust and other dirt fallen into the pumping grooves can be thrown out, so that the production cost is reduced, and a good sealing performance is achieved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of sealing, in particular to a bearing and a sealing device. Background technique [0002] The sealing device installed in the bearing is used to prevent the leakage of lubricating grease inside the bearing on the one hand, and to protect the rolling body cavity of the bearing from the influence of cement and dust entering from the outside on the other hand. [0003] Please refer to figure 1 , figure 1 It is a structural schematic diagram of a sealing device in the prior art. [0004] Such as figure 1 As shown, the existing sealing device includes a skeleton 10 , a dustproof ring 20 , a main sealing lip 30 , a centrifugal sealing lip 40 , a dustproof sealing lip 50 and a spring 60 . The dustproof ring 20 includes the axial part 21 of the dustproof ring and the radial part 22 of the dustproof ring. The main sealing lip 30 abuts against the axial part 21 of the dustproof ring. sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/3232F16C33/72
CPCF16J15/3232F16C33/72
Inventor 刘鑫张岳林张叶舟宫铭克里斯蒂安·努伊瑟
Owner SCHAEFFLER TECH AG & CO KG
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