The brake block (3) consists of a carrier plate (5) and a friction pad (6). An L-shaped sheet metal bracket (7) is mounted on the back of the carrier plate. The end (10) of the bracket protrudes, by a small amount, beyond the face of the carrier plate. The end of the bracket will come into contact with the brake disc when the friction pad has been worn down by a certain amount and vibration will be set up in the bracket The bracket lies with part (9), of its main leg, under spring tension against the back of the brake pad carrier (5) so that the audio frequency vibrations generated in the bracket are transmitted through the brake pad carrier.
