Title:
DOUBLE-ROW TAPERED ROLLER BEARING
Document Type and Number:
Japanese Patent JP2021055831
Kind Code:
A
Abstract:
To provide a double-row tapered roller bearing which equalizes applied loads in double rows, and obtains a long life as a whole bearing under a load condition in which an axial load mainly acts from one direction due to the optimization of a contact angle, and an axial load may act in a reverse direction.SOLUTION: This bearing is a front-face combination double-row tapered roller bearing. A contact angle θA of an applied load row A of an axial load is larger than a contact angle θB of a non-load side row B. A difference between the contact angles θA, θB of both the rows A, B is equal to 15° or larger. Either of, or both a roller length and a roller diameter of a roller at the non-load side row B are longer and larger than a roller length and a roller diameter of a roller at the applied load row A. The contact angle θA of the 25°≤applied load row A may be ≤35°, and the contact angle θB of the 5°≤non-load side row B may be ≤15°.SELECTED DRAWING: Figure 1
Inventors:
YAN WEIDA
ITO TOMOHITO
ITO TOMOHITO
Application Number:
JP2020092067A
Publication Date:
April 08, 2021
Filing Date:
May 27, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C19/38; F16C33/36; F16C33/58
Attorney, Agent or Firm:
Masashi Noda
Shuji Sugimoto
Shuji Sugimoto