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:
Jul. 17, 2012
Filed:
Mar. 13, 2007
Koichi Morita, Fujisawa, JP;
Keisuke Yokoyama, Fujisawa, JP;
Koichi Morita, Fujisawa, JP;
Keisuke Yokoyama, Fujisawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A bearing apparatus includes a rolling bearing () having an outer ring (), an inner ring (), and rolling elements () disposed between the inner ring () and the outer ring (), a temperature sensor (TS) for measuring an internal temperature of the rolling bearing and a lubrication unit (). The lubrication unit supplies lubricating oil in a quantity corresponding to the temperature detected by the temperature sensor, to the rolling bearing. With this configuration, it is feasible to provide the bearing apparatus capable of ensuring a sufficiently long life under the condition of high-speed rotations. The bearing apparatus is suitable for use in a spindle for a machine tool.