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:
Jan. 22, 2013
Filed:
Jun. 28, 2007
Gerald P. Fox, Massillon, OH (US);
Bruce C. Burner, Alliance, OH (US);
Gerald P. Fox, Massillon, OH (US);
Bruce C. Burner, Alliance, OH (US);
The Timken Company, Canton, OH (US);
Abstract
A bearing system (A) that supports a shaft () in a housing () includes two single row tapered roller bearings () mounted in opposition. One of the bearings () compensates for thermal variations that would otherwise produce excessive preload in the system. It has a conventional cup () in the housing and tapered rollers () arranged in a single row along the raceway () of the cup. It also has a compensating assembly () on the shaft, and it includes a ribless cone () having a raceway () around which the rollers are organized, an axially displaceable rib ring () for positioning the rollers, a spring () for urging the rib ring against a stop surface () on the cone, and a compensating ring () formed from a material having a high coefficient of thermal expansion for displacing the rib ring against the force exerted by the spring when the temperature of the compensating assembly exceeds a prescribed set point temperature so as to reduce preload in the bearing system.