Patent ID: 8206260
Filing Date: 2012-06-26
Classification: F16H

Abstract:
1. A toroidal continuously variable transmission unit comprising: an input-side disc and an output-side disc which are supported coaxially with each other and rotatably so that internal surfaces thereof are made to face each other; power rollers held between the input-side disc and the output-side disc; trunnions which are arranged in a twisted position relative to rotational center axes of the input-side disc and the output-side disc, each oscillate about a pair of pivot shafts which are provided coaxially with each other, and supported rotatably the respective power rollers; and thrust bearings each comprising: wherein a pair of guide surface portions are provided on the trunnion which face oppositely each other and extend in a direction which intersects the rotational center axis of the power roller at right angles and intersects the pivot shafts at right angles, so that an outer circumferential surface of the outer ring is adapted to be brought into abutment with the guide surface portion when a tangential force is applied to the power roller in a direction which follows along the pivot shafts.