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Title:
SELF-ALIGNING ROLLER BEARING
Document Type and Number:
Japanese Patent JP2016038032
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a self-aligning roller bearing which is low in cost, and low in a heat generation property.SOLUTION: A self-aligning roller bearing comprises: an inner ring having an inner ring raceway surface at an external peripheral face; an outer ring having an outer ring raceway surface at an internal peripheral face; and a plurality of rollers which are rollingly arranged between the inner ring raceway surface and the outer ring raceway surface, and having rolling faces corresponding to the inner ring raceway surface and the outer ring raceway surface. The inner ring raceway surface is formed by grinding, the surface roughness of the inner ring raceway surface is lower than the surface roughness of the outer ring raceway surface, and a relationship among a curvature radius rof the inner ring raceway surface in an axial direction, a curvature radius rof the outer ring raceway surface in the axial direction, and a curvature radius rof the roller rolling face in the axial direction satisfies r/r

Inventors:
ABE KEIGO
KURACHI TAKAHITO
Application Number:
JP2014161981A
Publication Date:
March 22, 2016
Filing Date:
August 08, 2014
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16C23/08; F16C19/38; F16C33/64



 
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