Title:
SELF-ALIGNING ROLLER BEARING
Document Type and Number:
Japanese Patent JP2004353743
Kind Code:
A
Abstract:
To provide a self-aligning roller bearing capable of improving a bearing life.
Arithmetic average roughness at a width direction and a longitudinal direction for rolling body raceways of an outer ring 11 and/or an inner ring 12 is set within a range from 0.2 to 0.5 μm. A ratio of arithmetic average roughness at a width direction and a longitudinal direction for rolling body raceways of the outer ring 11 and/or the inner ring 12 is set within a range from 0.8 to 1.20. Further, an average depth of prominent trough sections of a surface roughness curve is set to be 0.45 μm or more at a width direction and a longitudinal direction of the rolling body raceways of the outer ring 11 and/or the inner ring 12.
Inventors:
TAKAHASHI HIDEKAZU
SEKINO KAZUO
MURAI TAKASHI
SEKINO KAZUO
MURAI TAKASHI
Application Number:
JP2003151316A
Publication Date:
December 16, 2004
Filing Date:
May 28, 2003
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C23/08; (IPC1-7): F16C23/08
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu
Yoshiaki Naito
Cui Shu Tetsu