Title:
CONICAL ROLLER BEARING
Document Type and Number:
Japanese Patent JP2018169011
Kind Code:
A
Abstract:
To provide a conical roller bearing in which a roller and a retainer assembly hardly drop out from an inner ring, furthermore, scratching due to physical interference hardly occurs duwing assembly with respect to the inner ring.SOLUTION: A conical roller bearing 11 includes a large flange part 13b protruding on a radial outside in a large diameter-side end part of an inner ring raceway surface 13a of an inner ring 13; and an extension raceway surface 13c having a contact angle of 35° or larger, extending on a small diameter side and installed on a small diameter side of the inner ring raceway surface 13a of the inner ring 13. A resin small flange member 13d is formed separately from the inner ring 13 and fitted into an outer diameter surface of the extension raceway surface 13c.SELECTED DRAWING: Figure 1
Inventors:
HAYASHI YASUYOSHI
WAKIZAKA TAKASHI
WAKIZAKA TAKASHI
Application Number:
JP2017068389A
Publication Date:
November 01, 2018
Filing Date:
March 30, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C33/58; F16C19/36; F16C33/62; F16C43/04
Attorney, Agent or Firm:
Torii Kazuhisa
Torii Hiroshi
Torii Hiroshi