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A self-lubricating bearing

A self-lubricating bearing, self-lubricating technology, applied in bearings, sliding contact bearings, shafts and bearings, etc., can solve problems such as inappropriate deviation

Inactive Publication Date: 2008-06-11
MINEBEA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, if it is desired to produce a bearing with a life comparable to that described in GB2170279 when used in low pressure or low stress, high frequency, small amplitude motion applications, then the characteristics specified in GB2170279 (especially for the hardness and surface finish) any deviation is considered unsuitable

Method used

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  • A self-lubricating bearing
  • A self-lubricating bearing
  • A self-lubricating bearing

Examples

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Effect test

example 1

[0031] Example 1 includes a bearing with steel alloy balls heat-treated to AMS5630 with a hardness of 56Rc to 62Rc (650 to 750VPN) and a conventional surface finish (around 70nm);

example 2

[0032] Example 2 includes a bearing with another steel alloy ball heat-treated to AMS5630 with a hardness of 56Rc to 62Rc (650 to 750VPN) and a conventional surface finish (around 70nm);

example 3

[0033] Example 3 includes bearings with steel alloy balls heat treated in accordance with AMS5630, with a hardness of 56Rc to 62Rc (650 to 750VPN), with an electrolytically ground surface finish (less than 20nm), and no coating;

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Abstract

A self-lubricating bearing for use in low pressure, high frequency, small amplitude applications and methods of operating and constructing the same, the bearing having a self-lubricating liner (3) and a counterface surface (5) in close sliding contact therewith, the counterface surface (5) having a surface finish of less than 20nm and a hardness of less than in the region of 1000VPN.

Description

technical field [0001] The present invention relates to self-lubricating bearings, and more particularly to self-lubricating bearings for use in low pressure or low stress, high frequency, small amplitude motion applications. Background technique [0002] Self-lubricating bearings generally include a housing with a bushing in sliding contact with an opposing counterface. In the case of spherical bearings, the opposing faces consist of a spherical shape, and the housing is provided with a self-lubricating bushing consisting of a resin-filled fabric or perforated fiber held in contact with some PTFE (polytetrafluoroethylene) or other self-lubricating material. Together. These PTFE-rich bushing systems are well known and have been used in the past, especially in low stress, high frequency, small amplitude motion applications for spherical bearings. The difficulty of providing self-lubricating bearings with a sufficiently long life has been discussed, and various solutions hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/12F16C23/04F16C33/20
CPCF16C23/04F16C33/20F16C33/12F16C33/201F16C23/043F16C33/02F16C33/14Y10S384/908F16C2223/60F16C2220/68
Inventor 保罗·雷蒙·史密斯
Owner MINEBEA CO LTD