This friction disc transmits torque between two rotating components within the drive system of the host tractor. It sits between the input shaft and the driven hub, using its contact faces to engage and disengage power flow under clamping pressure from the adjacent pressure plate. Wear on the friction material reduces the available clamping force, leading to slipping under load and incomplete power transfer. The disc is manufactured to the original thickness and surface finish, which the clutch pack relies on for consistent engagement timing and smooth take-up. On reinstallation, ensure the mating surfaces are clean and free of oil.