Title:
CYLINDRICAL ROLLER BEARING
Document Type and Number:
Japanese Patent JP2019086063
Kind Code:
A
Abstract:
To prevent frictional heat from occurring at an inner ring and an outer ring contacting with a spacer even in a case where a roller bearing with the spacer rotates at high speed or in a high load state, and also to prevent contact surfaces therebetween from being worn.SOLUTION: A spacer 4 of a cylindrical roller bearing has, at both axial ends, a pair of circular flanges 4b swollen radially from an outer peripheral surface of a spacer body 4a. The spacer body 4a rotatably contacts with an outer peripheral surface 1a of an inner ring 1, and rotatably externally contacts with both outer peripheral surfaces of adjacent cylindrical rollers 3. When the inner ring 1 rotates, the spacer 4 rotates with rotational force received in the same direction from the opposite outer peripheral surfaces of the two rollers 3, so that the roller 3 and the spacer 4 can contact with each other in a rolling friction state.SELECTED DRAWING: Figure 1
Inventors:
MATSUGI ASAO
Application Number:
JP2017213753A
Publication Date:
June 06, 2019
Filing Date:
November 06, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C33/37; F16C19/26; F16C33/66
Attorney, Agent or Firm:
Naoya Kamata
Bunji Kamada
Yaichiro Nakatani
Bunji Kamada
Yaichiro Nakatani