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Title:
ABRASION RESISTANCE TESTER FOR HOLDER IN NEEDLE CAGE
Document Type and Number:
Japanese Patent JP2016118392
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an abrasion resistance tester for a holder, for performing an abrasion resistance test of a surface treated holder in a needle cage.SOLUTION: The abrasion resistance tester for a holder causes an outer peripheral surface 38 of a holder 3 in a needle cage and an inner peripheral surface 33 of an outer ring 2 to come into sliding contact with each other, and thereby testing abrasion resistance of surface treatment performed on the holder 3. In an actual engine, the holder in the needle cage bends under centrifugal force generated by combination of revolution and rotation. The holder 3 without a built-in roller is fixed to a rotary shaft 1 with a gap 26, the radial load is applied to the holder 3 through the outer ring 2 for a test, thereby bending the holder 3, and the outer peripheral surface 38 of the holder 3 is caused to be in sliding contact with a predetermined area of the inner peripheral surface 33 of the outer ring 2. Thus, the abrasion resistance tester enables an abrasion resistance test of surface treated coating of the holder 3, additionally enabling abrasion resistance tests of the holders 3 made of various materials.SELECTED DRAWING: Figure 2

Inventors:
NAGAO SHOJI
YANAGITANI AKIHIDE
Application Number:
JP2014256179A
Publication Date:
June 30, 2016
Filing Date:
December 18, 2014
Export Citation:
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Assignee:
NIPPON THOMPSON CO LTD
International Classes:
G01M13/04; F16C9/04
Domestic Patent References:
JPH0424531A1992-01-28
JPS63101730A1988-05-06
JP2006162301A2006-06-22
JP2012093323A2012-05-17
JP2005091212A2005-04-07
JP2011053072A2011-03-17
Attorney, Agent or Firm:
Onaka Kazumune