Brake shoe lining.

摘要

A brake shoe lining is for a drum brake of the type which includes a pair of actuators with a pair of arcuate brake shoes extending therebetween. Each brake shoe is capable of limited movement along a path between the actuation end of one of the actuators and the anchor end of the other of the actuators. The wheel and drum of the drum brake rotate in a normal direction from the actuation end of one actuator to the anchor end of the other actuator so that a leading end of each brake shoe is adjacent the actuator end and a trailing end of each brake is adlacent the anchor end. The lining includes an attachment layer for securing the lining to the brake shoe. A useable layer is joined to the attachment layer and is thicker at the trailing end of the brake shoe than at the leading end of the brake shoe. Because of the useable layer, the brake shoe is relatively located on the path toward the actuation end prior to wear of the useable layer and tends to be relocated along the path away from the actuation end during wear of the useable layer throughout use of the drum brake.