The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2000
Filed:
Jan. 12, 1999
Applicant:
Inventors:
Hiroshi Toyota, Tondabayashi, JP;
Manabu Kai, Fujiidera, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384492 ; 74459 ; 384908 ;
Abstract
A lubrication film 5 is formed of a solid lubricant including PTFE (polytetrafluoroethylene) having a mean molecular weight of not more than 25,000 and a mean particle size of not less than 5 .mu.m and less than 10 .mu.m. The films 5 adhere to balls 3, raceway tracks 1a, 2a and a retainer 4 of a bearing assembly. The solid lubricant thus adhered to each portion has a property that PTFE particles are dispersed without a binder.