Clutches

thumb|Friction disk for a dry clutch thumb|Plate clutch thumb|Cone clutch

thumb|Freewheel mechanism thumb|right|Ratchet (device)|Ratcheting freewheel mechanism (van Anden, 1869)

clutch type using centrifugal force to connect concentric shafts

clutch using viscous fluid to transfer torque

type of clutch (coupling) which couples two rotating shafts or other rotating components not by friction but by interference or clearance fit

type of clutch

thumb|262px|Schematic view of the Saxomat automatic clutch control valves unit: 1 – solenoid, 2 – solenoid valve, 3 – vacuum check valve, 4 – pressure reducing valve, 5 – vacuum regulator valve, A – vacuum chamber, B – intermediate chamber, C – atmosphere chamber. The solenoid valve is shown activated, the clutch is fully depressed.

Type of clutch