Wheel Support Assembly

Wheel Support Assembly (WSA), also referred to as support assembly, wheel support unit, wheel support bearing, etc., is an automotive part used in most cars, passenger vehicles and light and heavy trucks. It is located between the brake drums or discs and the drive axle. On the axle side, it is mounted to the holding bracket from the chassis; on the disc side, the wheel is mounted to the bolts of the WSA. When replacing, a wheel support assembly should be torqued to the vehicle's specifications to prevent failure.