Patent ID: 10744994

Abstract:
A primary clutch assembly for a continuously variable transmission is provided. The primary clutch assembly includes a fixed sheave and a movable sheave centered on a post for joint rotation therewith. A rotational unit disposed on the post generates centrifugal forces during rotation of the post that are translated axially to urge the movable sheave along the post towards the fixed sheave. The primary clutch utilizes an actuator assembly that is configured to establish a locked condition that prevents axial movement of the movable sheave as the rotational unit builds-up centrifugal force and an unlocked condition to allow sudden axial movement of the movable sheave towards the fixed sheave. The actuator assembly includes a bearing unit that extends through a hole in the post to contact the movable sheave in the locked condition and is housed within the hole and spaced from the movable sheave in the unlocked condition.