Torque and/or rotational control apparatus

摘要

A torque control device in the form of a brake (10) includes a number of pairs of actuators (18) located on either side of a friction disc by spacers (120) having tear-shaped cross-sections. The actuator pads (32) are removable and held by a spring (80) loaded locking pin (70) in a hole (68) of a backing plate (62) for the pads. A notch formed in the pad and backing plate engages a rail (66) extending from the actuator to prevent rotation about the pin. The friction disc includes long an short upright fins (42, 43) equally spaced between the component discs (40, 41). The fins are free of circumferential interconnections to allow air to pass radially in between. This allows heat energy generated during engagement in clutches or brakes to be efficiently transferred. <IMAGE>