Toroidal-type continuously variable transmission

Details Toroidal-type continuously variable transmission Toroidal-type continuously variable transmission

1994-12-14

1996-08-20

Herrmann, Allan D.

Friction gear transmission systems or components

Friction gear includes idler engaging facing concave surfaces

Toroidal

384604, 476 46, F16H 1538, F16C 1930, F16C 1948

Patent

active

055474322

ABSTRACT:
In order to prevent strong bending stress given to outer rings of thrust ball bearings of power roller assemblies and to improve the durability of the outer rings, a toroidal-type continuously variable transmission has thrust needle bearings which absorb thrust load given to the outer rings as well as allow the outer rings and corresponding trunnions to be shifted from each other. Preferably, the entire circumference of the pitch circle of the balls of each thrust ball bearing overlaps with a load-absorbing region, which is one or more annular and/or arcuate regions having the same width as the needles of needle bearings radially arranged in said regions in order to absorb thrust load.

REFERENCES:
patent: 4955246 (1990-09-01), Nakano

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