the invention relates to a brake of the kind having a rotary member to be braked , at least one brake shoe , a control member for applying the brake shoe to the rotary member , and a heat shield for minimizing the transmission of heat to the control member . according to the invention , the heat shield is carried by the control member and comprises a heat reflector interposed between the control member and the rotary member . this arrangement significantly reduces heat transmission to the control member during operation . the invention is especially suitable for motor vehicle brakes in which the rotary member comprises parallel twin discs .