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:
Nov. 01, 2011
Filed:
Nov. 08, 2007
Akihiro Mochizuki, Yamatokoriyama, JP;
Hidenori Saraie, Yamatokoriyama, JP;
Kazuya Fujioka, Yamatokoriyama, JP;
Takahiro Nishiki, Yamatokoriyama, JP;
Akihiro Mochizuki, Yamatokoriyama, JP;
Hidenori Saraie, Yamatokoriyama, JP;
Kazuya Fujioka, Yamatokoriyama, JP;
Takahiro Nishiki, Yamatokoriyama, JP;
Mori Seiki Co., Ltd., Yamatokoriyama-shi, JP;
Abstract
A bearing unit capable of withstanding a large axial force based on a simple structure including: a bearinghaving an internal ringfitted to an inside member, an outer ringfitted to an outside member, lots of rolling elementsdisposed between the outer ringand the inner ring; and a transmitting direction shifting means A transmitting an axial force F from the inner ringto the outside memberwhen the axial force F transmitted from the inside memberto the internal ringexceeds a predetermined value or above, and a main spindle device of a machine tool, which is provided with the bearing unit, are provided.