The vast majority of clutches ultimately rely on frictional forces for their operation. The purpose of friction clutches is to connect a moving member to another that is moving at a different speed or stationary, often to synchronize the speeds, and/or to transmit power.
Multiple plate clutch: This type of clutch has several driving members interleaved or “stacked” with several driven members. It is used in racing cars including Formula 1, Indy Car, World Rally and even most club racing. Multiplate clutches see much use in drag racing, which requires the best acceleration possible, and is notorious for the abuse the clutch is subjected to. It is also used in some electronically controlled all-wheel drive systems as well as in some transfer cases. They can also be found in some heavy machinery such as tanks and AFV’s (T-54) and earthmoving equipment (front-end loaders, bulldozers), as well as components in certain types of limited slip differentials.
Centrifugal clutch: A centrifugal clutch is used in some vehicles (e.g., mopeds) and also in other applications where the speed of the engine defines the state of the clutch, for example, in a chainsaw. This clutch system employs centrifugal force to automatically engage the clutch when the engine rpm rises above a threshold and to automatically disengage the clutch when the engine rpm falls low enough.
Cone clutch: As the name implies, a cone clutch has conical friction surfaces. The cone’s taper means that a given amount of movement of the actuator makes the surfaces approach (or recede) much more slowly than in a disc clutch. As well, a given amount of actuating force creates more pressure on the mating surfaces. The best known example of a cone clutch is a synchronizer ring in a manual transmission. The synchronizer ring is responsible for “synchronizing” the speeds of the shift hub and the gear wheel to ensure a smooth gear change.
Torque limiter: Also known as a slip clutch or safety clutch, this device allows a rotating shaft to slip when higher than normal resistance is encountered on a machine. An example of a safety clutch is the one mounted on the driving shaft of a large grass mower. The clutch yields if the blades hit a rock, stump, or other immobile object, thus avoiding a potentially damaging torque transfer to the engine, possibly twisting or fracturing the crankshaft. Motor-driven mechanical calculators had these between the drive motor and gear train, to limit damage when the mechanism jammed, as motors used in such calculators had high stall torque and were capable of causing damage to the mechanism if torque wasn’t limited.
Non-slip clutch: Some clutches are designed not to slip; torque may only be transmitted either fully engaged or disengaged to avoid catastrophic damage. An example of this is the dog clutch, most commonly used in non-synchromesh transmissions.
Toyota is recognized as a world leader of performance sports and racing clutches in the automotive business. It also provides best quality Toyota 86 clutch kits or Toyota hilux clutch. LuK provides first-class standard in clutch kit quality. Centerforce II Clutch Kit is to get your vehicle back on the road and experience a superior performing clutch. Valeo’s clutch kits deliver the intended performance and long-term reliability of your stock clutch assembly. The Subaru WRX is a great clutch kit when it comes to performance. This car has two powerful turbocharged engine choices and razor-sharp steering. The WRX is also one of the few compact cars with standard all-wheel drive.