As an ace manufacturer and trader of Twin Disc Friction Disc, we have marked our name very strongly in the market. This clutch assembly has two friction discs, with friction material riveted to both sides of each. These are made available as per the set industry norms and protocols. An internally-splined hub on each disc mates with the splines on the transmission input shaft. Adding plates to a clutch unit to form a multi-plate clutch will increase its torque capacity, without increasing spring strength or clutch diameter.