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DIFFERENCE BETWEEN SINGLE And MULTI PLATE CLUTCH
- The number of pairs of contacting surfaces in the single plate clutch is one or at the most, two. There are more number of contacting surfaces in the multi-disk clutch.
- As the number of contacting surfaces is increased, the torque transmitting capacity is also increased, other conditions being equal. In other words, for a given torque capacity, the size of the multi-plate clutch is smaller than that of the single plate clutch, resulting in compact construction.
- The work done by friction force during engagement is converted into heat. More heat is generated in the multi-plate clutch due to increased number of contacting surface. Heat dissipation is a serious problem in the multi-plate clutch. Therefore, multi-plate clutches are wet clutches, while single plate clutches are dry.
- The coefficient of friction decreases due to cooling oil, thereby reducing the torque transmitting capacity of the multi-plate clutch. The coefficient of friction is high in dry single plate clutches.
- Single plate clutches are used in applications where large radial space is a available, such as trucks and cars. Multi-disk clutches are used in applications where compact construction is desirable, e.g., scooter and motorcycle.
SINGLE PLATE CLUTCH VS MULTI PLATE CLUTCH
| SINGLE PLATE CLUTCH | MULTI PLATE CLUTCH |
|---|---|
| Single plate clutch consists of a clutch plate whose both sides are coated with a frictional material. | The multi Plate clutch consists more than one clutch plate. |
| Torque transmitting capacity is less. | High torque transmitting capacity or multi plate clutch is smaller than the single plate clutch for a given torque capacity. |
| Heat generation is less, so there is no need of a cooling medium. It is called “dry clutches.” | Heat generation is more due to more frictional surface. So it needs a cooling medium and referred as “wet type” clutch. |
| The coefficient of friction is high. | The coefficient of friction is low. |
| Faster response; Clutch engagement Clutch engagement not is almost instantaneous. | Clutch engagement not instantaneous. |
| Single plate clutch used where large radial space available. e.g. Trucks ,Cars. | Multiple Disc clutch is used where compact construction is desirable. E.g. Motorcycle, Scooter. |
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Automobile Engineering,
Mechanical Engineering
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