This brake disc is a friction component within the dry brake pack of the host tractor. It sits between the stationary backing plate and the rotating hub, converting kinetic energy into heat when the brake pedal is applied. The splined inner diameter engages with the hub, while the outer diameter contacts the housing. A worn disc reduces braking torque, leading to longer stopping distances and potential scoring of the mating surfaces. This replacement disc is manufactured to the same tooth profile and thickness as the original assembly, ensuring proper engagement with the hub splines and consistent clamping force from the brake pack. On installation, inspect the mating surfaces for wear and replace the seals in the brake housing.