Bearings and CVTs

Abstract

The present invention provides a bearing that reduces frictional resistance by smoothly taking lubricating oil between a cage and an inner peripheral surface of an outer ring, and between the cage and an outer peripheral surface of an inner ring, and a continuously variable transmission. generation and wear of the retainer thus improving durability. A bearing (16) includes an outer ring (161), an inner ring (162), a plurality of rolling elements (164), and a cage (163). The bearing (16) is configured such that when the rotation axis direction of the inner ring (162) is taken as the width direction, the dimension from the center to one end of the outer ring (161), that is, the outer ring width (L1), and the inner ring (162) from The dimension from the center to one end, that is, the width of the inner ring (L2), and the dimension from the center to one end of the cage (163), that is, the width of the cage (L3), satisfy "outer ring width (L1)>cage width (L3)>inner Circle Width (L2)".

Description

technical field [0001] The present invention relates to a bearing and a continuously variable transmission using the bearing. Background technique [0002] Conventionally, such a so-called four-joint linkage type continuously variable transmission is known, which includes: an input shaft to which a driving force from a driving source such as an engine is transmitted; an output shaft arranged parallel to the input shaft; A lever mechanism that transmits rotation of an input shaft to an output shaft (for example, refer to Patent Document 1). [0003] The crank rocker mechanism of this continuously variable transmission has a radius of rotation adjustment mechanism, a connecting rod and a swing rod. [0004] The radius of rotation adjustment mechanism includes: a disc-shaped cam portion that rotates integrally with the input shaft; and a disc-shaped rotating portion that encloses the cam portion in a circular receiving hole. The cam portion is formed in an eccentric shape wit...

AI Technical Summary

Problems solved by technology

[0016] However, for existing bearings, since the width of the outer ring along the rotation axis direction is equal to the width of the inner ring, the lubricating oil reaching the inner ring from the rotating part rarely enters between the outer ring and the inner ring, As a result, the generation of frictional resistance and the wear of the retainer cannot be sufficiently reduced

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