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. 02, 2011
Filed:
Jul. 20, 2006
Masayuki Hanano, Mino, JP;
Tsutomu Mizutani, Kuwana, JP;
Ryutarou Oka, Kuwana, JP;
NTN Corporation, Osaka, JP;
Abstract
The present invention provides a rolling bearing which does not contain a hazardous substance and thus does not pollute environment. The present invention also provides a retainer, for holding rolling elements of the rolling bearing, which is made of a cold rolled steel plate. The retainer is subjected to at least one kind of surface treatment selected from among electrogalvanizing, electrotinning, electrolytic tin-zinc alloy plating, electrolytic zinc-iron alloy plating, and electrolytic zinc-nickel alloy plating. The retainer is further chromated with trivalent chromium. The rolling bearing uses the retainer for the rolling bearing.