Title:
CAM FOLLOWER
Document Type and Number:
Japanese Patent JP2005076577
Kind Code:
A
Abstract:
To reduce friction at a bearing part by setting surface roughness of the shaft body.
A plurality of needle rollers 15 are set to an inner circumferential surface of a roller 3 as an outer ring race part 3a and an outer circumferential surface of the shaft 14 as an inner ring race part 14b to rotate around the shaft body 14, and a cam 2 rolls in contact with the outer circumferential surface of the roller 3 to make the roller 3 rotate around an axis in this cam follower. A load length ratio tp of the outer circumferential surface of the shaft body 14 is set on the range of 92≤tp≤100. Friction can thus be reduced when the needle rollers 15 roll.
Inventors:
YASUZAWA TOMOHIRO
NOGUCHI MASAHIRO
NISHIZAWA CHIAKI
WASEDA YOSHITAKA
NOGUCHI MASAHIRO
NISHIZAWA CHIAKI
WASEDA YOSHITAKA
Application Number:
JP2003309899A
Publication Date:
March 24, 2005
Filing Date:
September 02, 2003
Export Citation:
Assignee:
KOYO SEIKO CO
International Classes:
F01L1/18; F16C33/58; F16H53/06; (IPC1-7): F01L1/18; F16C33/58; F16H53/06
Domestic Patent References:
| JPH10102U | 1998-04-24 | |||
| JP2002031212A | 2002-01-31 |
Attorney, Agent or Firm:
Kazuhide Okada