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Patent Searching and Data


Title:
ROLLING DEVICE, ROLLING BEARING AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019157978
Kind Code:
A
Abstract:
To provide a rolling device capable of attaining long service life even in a case where it is used in a state in which the oil film formation property of a rolling part is in a bad state, regardless of the size or shape, and provide a rolling bearing and a method for manufacturing them.SOLUTION: A rolling bearing 1 comprises an outer ring 11 and an inner ring 12 that are first rolling components, and a ball 13 that is a second rolling component. The ball 13 contacts with the outer ring 11 and the inner ring 12. The surface of the rolling part of the outer ring 11 and the inner ring 12 as the first rolling component includes a surface portion on which isotropic unevenness is formed. On the surface portion, composite coatings 11B and 12B mainly composed of iron oxide and compound are formed.SELECTED DRAWING: Figure 2

Inventors:
長谷川 直哉
Application Number:
JP2018044658A
Publication Date:
September 19, 2019
Filing Date:
March 12, 2018
Export Citation:
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Assignee:
NTN株式会社
International Classes:
F16C33/66; F16C19/00; F16C19/06; F16C33/32; F16C33/64; F16C43/04
Attorney, Agent or Firm:
特許業務法人深見特許事務所