Title:
車輪用転がり軸受装置
Document Type and Number:
Japanese Patent JP4055398
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem in a conventional seal device for a wheel or rolling bearing device that a large rotating torque is required for the rotation of an inner ring member since a lip of elastic seal body is in contact with a metal ring, the friction force between the lip and the metal ring works in the rotation of the inner ring member, and is added to the rotating friction torque. SOLUTION: The value of surface roughness Rz of the metal ring 8B is set to 1.50-3.00 μm, whereby the rotating friction torque in the rotation of an outer ring member 2 around an axis in the state where the elastic seal body 11B (lip 10) is in contact with the metal ring 8B is significantly reduced, compared with a conventional case. Necessary sealing property is also ensured.
Inventors:
Shunichi Matsui
Kazutoshi Yamamoto
Yoshinori Masuda
Kazutoshi Yamamoto
Yoshinori Masuda
Application Number:
JP2001343158A
Publication Date:
March 05, 2008
Filing Date:
November 08, 2001
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
F16C33/58; F16C33/78; F16J15/3232
Domestic Patent References:
| JP11141659A | ||||
| JP6179002A | ||||
| JP2001215133A | ||||
| JP6011958A | ||||
| JP9274051A |
Attorney, Agent or Firm:
Kazuhide Okada