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:
Oct. 21, 2014
Filed:
Oct. 08, 2009
Applicants:
Masato Shimoda, Toin, JP;
Masahiko Mizutani, Toin, JP;
Inventors:
Masato Shimoda, Toin, JP;
Masahiko Mizutani, Toin, JP;
Assignee:
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 57/021 (2012.01); B60N 2/06 (2006.01); B60N 2/44 (2006.01); B60N 2/02 (2006.01); F16C 33/20 (2006.01); F16C 17/04 (2006.01); B60N 2/12 (2006.01); F16H 1/16 (2006.01);
U.S. Cl.
CPC ...
F16C 17/04 (2013.01); F16H 57/021 (2013.01); F16H 2057/0213 (2013.01); B60N 2/443 (2013.01); B60N 2/067 (2013.01); B60N 2/0232 (2013.01); F16H 1/16 (2013.01); F16C 33/201 (2013.01);
Abstract
A bearing assembly for a worm drive supporting the worm of the worm drive with washer-shaped thrust slide bearings and bush-shaped radial slide (sintered oil-containing bearings) bearings. The thrust slide bearings are made of a resin containing 95 to 99.9 wt % of polyetheretherketone resin, which is an aromatic polyetherketone resin. Wear of the thrust slide bearings is reduced and its durability is improved, thereby preventing vibration and noise of the worm drive as well as improving its durability.