DISC BRAKE PAD SPRING
DRIVE
May 20, 2026
A disc brake pad spring assembly, comprising: a mounting plate, such as a brake pad backplate or a spreader plate, having opposing spaced abutments defining abutment depressions; and a pad spring comprising: a straight intermediate portion having opposite first and second ends and defining a plane; a first arm extending from the first end of the intermediate portion, inclined out of the plane; and a second arm extending from the second end of the intermediate portion, inclined out of the plane on the same side of the plane as the first arm. Each arm has an intermediate portion end and an opposite, free end, the free end of each arm curving outwardly relative to the intermediate portion and back towards the plane. The free ends of the pad spring arms fit into the abutment depressions in a circumferentially restrained manner, such that application of a load to the pad spring at the straight intermediate portion results in stresses being reacted with a substantial resultant in the circumferential direction.
Discussion in the ATmosphere