Dry clutch and oil bath clutch advantages and disadvantages

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Dry clutch and oil bath clutch advantages and disadvantages
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Dry clutch and oil bath clutch advantages and disadvantages

Dry clutch and oil bath clutch
advantages and disadvantages

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“What are the advantages of a dry clutch compared to an oil bath clutch?”, asks PS reader and Ducati Panigale owner Daniel Fink. PS technology understanding Werner “Mini” Koch answers.

Werner Koch

07/12/2016

The benefits of the dry clutch have been drastically reduced over the years. With racing two-stroke engines and some four-stroke engines of the 70s and 80s, they were supposed to reduce so-called panch losses. These occur when the clutch rotates in an oil bath, and oil can foam up when the rotating clutch basket mixes air and oil.

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This problem has largely been solved in modern oil bath clutches by rotating the clutch high above the oil level of the wet sump lubrication. In addition, most of the couplings are sealed off from the oil sump.

In older oil bath clutches with sintered metal linings, sintered particles can get into the oil circuit and cause damage to the plain bearings. This cannot happen with the dry clutch. Because here the clutch basket and the friction disks run outside of the oil bath.

Further advantages of the dry clutch: The pads can be easily changed and the settings on the anti-hopping system can be changed from the outside. Disadvantages: often poor controllability when starting at full throttle and thermal overload when the clutch is slipping.

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