Title:
DEEP GROOVE BALL BEARING AND BEARING DEVICE
Document Type and Number:
Japanese Patent JP2013148116
Kind Code:
A
Abstract:
To reduce a torque loss in the deep groove ball bearing having large thrust load capacity.
A ball 31 is incorporated between an outer race 11 and an inner race 21 different between right and left shoulder heights, and the ball 31 is held by a cage 40. A recessed part 48 is respectively formed on an inner surface of a plurality of semispherical pocket parts 44 arranged in a pair of waveform dividing cages 41 and 42 for forming the cage 40, shearing resistance is reduced when the ball 31 shears an oil film interposed between pocket inner surfaces, and the torque loss in the bearing is reduced.
Inventors:
SASAKI KATSUAKI
UOZUMI TOMOHISA
UOZUMI TOMOHISA
Application Number:
JP2012006923A
Publication Date:
August 01, 2013
Filing Date:
January 17, 2012
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C19/16; F16C33/38; F16C33/42; F16C33/58; F16H1/06
Attorney, Agent or Firm:
Bunji Kamada
Naoya Kamata
Yaichiro Nakatani
Takashi Shimizu
Naoya Kamata
Yaichiro Nakatani
Takashi Shimizu