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. 30, 2012
Filed:
Sep. 01, 2008
Tatsuo Nakajima, Iwata, JP;
Arito Matsui, Iwata, JP;
Tatsuo Nakajima, Iwata, JP;
Arito Matsui, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
The magnetic encoder () includes a slinger () fixed to a rotation-side raceway ring of a bearing and including an outer side surface () opposed to the side of a sensor to detect rotation speed of the rotation-side raceway ring and having a surface roughness Ra: 0.3 to 3.0 μm, and an inner side surface () opposed to the side of a sealing member () to seal the bearing; a multipolar magnet () bonded to the outer side surface () through an adhesive; and a film () formed on the inner side surface (), having a surface roughness Ra of 0.3 μm or less, and being in sliding contact with the sealing member ().