DF4974S TRW Brake Disc

TRW's DF4974S Brake Disc is utilized in various applications, particularly in brake systems where high-performance and reliability are essential. Its dimensions measure 72.0 x 315.0 x 310.0 mm, making it a key component for optimal braking efficiency. Dimensions are provided by the supplier and may include packaging dimensions. Brake discs, or rotors, are metallic circular components integral to a vehicle’s braking system, mounted on the wheel hubs. They function as a friction surface for brake pads, converting kinetic energy into thermal energy via clamping force to decelerate or stop wheel rotation. Discs are typically constructed from gray cast iron, though carbon ceramic and composite materials are also utilized for performance applications. Key characteristics include diameter, thickness, venting style (solid, vented, drilled/slotted), and rotor hat offset. Variation exists between solid, vented, and cross-drilled/slotted designs, impacting heat dissipation and performance characteristics.