Of all the materials used in truck clutch discs, ceramic has the highest coefficient of friction at 0.48-0.55. This means they can be used with lower clamping force clutch platens and/or high output applications. Ceramic clutches are known to severely wear mating surfaces. This wear also makes them shudder when combined. They can absorb more heat, but sliding can cause severe wear and cause the platen and flywheel to burn out.

    Kevlar-like organics require considerably higher clamping forces because it has a similar coefficient of friction to organics. It has the advantage of being heat resistant. Typically, Kevlar can withstand 40-50% more heat than organics. Just like organic Kevlar provides smooth engagement and minimal matte surface wear. The service life of such friction materials is usually two to three times longer than that of organic materials. These are good options for slightly modified vehicles and off-road use.

    Organic is the choice of most OEMs. Organic provides durability, a smooth bond, and is gentle on matte surfaces. The downside is that they don't like heat and require fairly high clamping force to maintain grip, as the coefficient of friction is only around 0.32. Organic friction discs are almost always full discs, with organic materials made of phenolic resin, metal powder, or metal oxide and molded or woven into the structure.

    The heavy-duty option will have more metal material in the mix and a platen with a higher clamping value.

    Taizhou Benwo Auto Parts Co., Ltd. is a truck clutch manufacturer from China. The company mainly provides racing clutch kits and other clutch components.