Title:
SELF-LUBRICATING ROLLING BEARING AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/041170
Kind Code:
A1
Abstract:
Disclosed are a self-lubricating rolling bearing and a preparation method therefor, wherein the material ingredients of inner and outer ferrules of the bearing are: 3.4%-3.7% of C, 2.7%-2.9% of Si, 0.3%-0.5% of Mn, 0.3%-0.5% of Cr, S ≤ 0.05%, P ≤ 0.05%, 0.03%-0.045% of a residual magnesium content and the balance of Fe. The material ingredients of a holder of the bearing are: 3.3%-3.5% of C, 2.8%-3.1% of Si, 0.2%-0.3% of Mn, S ≤ 0.05%, P ≤ 0.05%, 0.03%-0.045% of a residual magnesium content and the balance of Fe. The inner and outer ferrules of the bearing are an austempered ductile iron material, the diameter of graphite nodules thereof being ≤ 0.02 mm, the density of the graphite nodules being ≥ 400/mm2. A matrix structure is an "austenite iron structure" clearly observable only under a metallographic microscope of 500 times or more. Finally, a rolling bearing having a self-lubricating function is manufactured.
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Inventors:
XU YANG (CN)
Application Number:
PCT/CN2017/099793
Publication Date:
March 08, 2018
Filing Date:
August 31, 2017
Export Citation:
Assignee:
UNIV XIAN TECHNOLOGY (CN)
International Classes:
C22C37/10; B22D11/14; C21D1/32; C22C37/06; C22C37/08; F16C33/66
Foreign References:
| CN106319338A | 2017-01-11 | |||
| CN101589661A | 2009-12-02 | |||
| CN87200694U | 1988-01-27 | |||
| CN203235937U | 2013-10-16 | |||
| CN103834854A | 2014-06-04 | |||
| JPS6018248B2 | 1985-05-09 | |||
| CN1278563A | 2001-01-03 |
Attorney, Agent or Firm:
MING & SURE INTELLECTUAL PROPERTY LAW FIRM (CN)
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