Title:
ROLLER BEARING
Document Type and Number:
Japanese Patent JP2015052365
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a roller bearing in which lubrication oil flows through in the axial direction, which is excellent in lubrication and suppresses torque increase caused by the agitation resistance of the lubrication oil.SOLUTION: A roller bearing includes an inner race 10, an outer race 20, a plurality of rolling elements 40, and a cage 30 holding the rolling elements 40 separated from each other in a predetermined interval in the circumferential direction. In the roller bearing, lubrication oil flows through in the axial direction. In an outer periphery of the inner race 10 in a lubrication oil inlet, an elastic ring 52 the diameter of which expands by centrifugal force is detachably provided. A gap between the cage 30 and the elastic ring 52 in the radial direction is varied in accordance with the revolution speed of the inner race.
Inventors:
UEHORI YASUHIRO
Application Number:
JP2013186099A
Publication Date:
March 19, 2015
Filing Date:
September 09, 2013
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C33/66; F16C19/16; F16C33/38; F16C33/58; F16C33/64
Attorney, Agent or Firm:
Kunihiko Shiromura
Kumano 剛
Yoshiyuki Shiraishi
Kumano 剛
Yoshiyuki Shiraishi
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