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:
May. 31, 2016
Filed:
May. 22, 2013
Shinji Komatsubara, Mie, JP;
Tetsuya Kurimura, Mie, JP;
Shinji Komatsubara, Mie, JP;
Tetsuya Kurimura, Mie, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A fluid dynamic bearing device (), including: a bearing member () on a rotary side; a housing () on a stationary side; a sealing member (); a radial bearing gap to be formed between an outer peripheral surface () of the bearing member () and an inner peripheral surface () of the housing (); and a thrust bearing gap to be formed between a lower end surface () of the bearing member () and an inner bottom surface () of the housing (). The radial bearing gap and the thrust bearing gap are filled with lubricating oil (). An axial gap () containing air is formed between an upper end surface () of the bearing member () and a lower end surface () of the sealing member (), which faces the upper end surface () of the bearing member ().