Title:
流体動圧軸受装置の製造方法
Document Type and Number:
Japanese Patent JP6502068
Kind Code:
B2
Abstract:
The present invention relates to a manufacturing method for a fluid dynamic bearing device, the method involving: forming an axial clearance 14 having a clearance width δ equal to a total amount of clearance widths of two thrust bearing clearances δ1, δ2 between a second bearing surface C of a bearing member 22 fixed to an outer periphery of a shaft member 21 and a sealing member 9; relatively moving the shaft member 21, the shaft member 22, and the sealing member 9 with respect to a housing 7 while the clearance width δ of the axial clearance 14 is maintained after forming the axial clearance 14; and fixing the sealing member 9 to the housing 7 at a time when a first thrust bearing surface B of the bearing member 22 comes into contact with a bottom surface 7b of the housing 7.
Inventors:
Taichi Kato
Niwa Minoru
Niwa Minoru
Application Number:
JP2014235543A
Publication Date:
April 17, 2019
Filing Date:
November 20, 2014
Export Citation:
Assignee:
ntn corporation
International Classes:
F16C43/02; F16C17/02; F16C17/04; F16C33/08; H02K5/16; H02K7/08
Domestic Patent References:
| JP2003314538A | ||||
| JP200261637A | ||||
| JP2006342975A | ||||
| JP2008267531A |
Foreign References:
| US20100189383 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano