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Title:
THRUST BEARING FOR HYDRAULIC CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2016/190026
Kind Code:
A1
Abstract:
This thrust bearing for a hydraulic continuously variable transmission is a thrust bearing incorporated in a hydraulic continuously variable transmission (30) and is provided with: an inner race (12) that contacts pistons (35) in a piston chamber (34) of a variable capacity pump (32); an outer race (14) fixed to a swash plate (37); and multiple balls (15) held between the inner race (12) and the outer race (14) by a cage (16). The cage (16) is formed from a synthetic resin obtained from polyamide 66 and the content of glass fibers contained is 10 mass% or less. The present invention thereby prevents damage of the cage (16) due to delay or advance of the balls (15) when an eccentric load is applied according to the angle of inclination of the pump swash plate (37), and is able to increase service life.

Inventors:
TANIMURA Hiroki (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 78, 〒5118678, JP)
Application Number:
JP2016/063012
Publication Date:
December 01, 2016
Filing Date:
April 26, 2016
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16C19/10; F16C33/44; F16H39/00
Domestic Patent References:
WO2013031249A12013-03-07
Foreign References:
JP2009052657A2009-03-12
JP2001317555A2001-11-16
JPS63199925A1988-08-18
Attorney, Agent or Firm:
TORII Kazuhisa et al. (PATRIO Patent Office, Hommachi Takeda Building 1-29, Kyutaro-machi 3-chome, Chuo-Ku, Osaka-sh, Osaka 56, 〒5410056, JP)
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