TRW Automotive is one of the leading producers of brake rotors in North and South America; the company also manufactures rotors in Europe and Asia.

Brake rotors or discs work in concert with brake calipers as the primary components in a disc braking system. When the brake caliper applies hydraulic pressure to the rotor, the brake's pads are squeezed against both sides of the rotor, slowing down or stopping the vehicle.