Title:
METHOD FOR DIAGNOSING ROLLER BEARING AND ROLLER BEARING APPARATUS
Document Type and Number:
Japanese Patent JP3566002
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To surely detect a damage brought about inside a roller bearing and smoothly drive an apparatus while the roller bearing rotates at low speed with high load.
SOLUTION: An outer ring 20 is supported at a casing 1, and an inner ring 22 is rotatably supported via a plurality of balls 21 at an inner circumference of the outer ring 20. A plug 3 is set at an opening part of the casing 1. A projecting streak 30 is formed in an internal end face of the plug 3. As a result, the projecting streak 30 presses an end face of the outer ring 20. A recessed part 31 is formed in the projecting streak 30, in which a strain gauge 4 is accommodated. The strain gauge 4 is fixed to the end face of the outer ring 20. A damage brought about to the ball 21 or the like is detected on the basis of an output signal of the strain gauge 4.
Inventors:
Watanabe, Norio
Kubozono, Hidetaka
Shinohara, Masanori
Kubozono, Hidetaka
Shinohara, Masanori
Application Number:
JP1996000275593
Publication Date:
June 18, 2004
Filing Date:
September 26, 1996
Export Citation:
Assignee:
NIPPON YAKIN KOGYO CO LTD
ANRITSU CORP
KOYO SEIKO CO LTD
ANRITSU CORP
KOYO SEIKO CO LTD
International Classes:
G01M13/04; F16C19/52; G01M13/00; F16C19/00; (IPC1-7): G01M13/04; F16C19/52