DF4987S TRW Brake Disc

This Brake Disc is a key component for effective braking performance. It is commonly used on passenger vehicles and commercial trucks to ensure safe stopping distances. The TRW DF4987S model boasts enhanced thermal management capabilities, minimizing the risk of brake overheating. Made in China, this disc measures 94.0 x 314.0 x 316.0 mm. 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.