Coupling that connects or disconnects driving and driven parts of a driving mechanism.
Often used when many starts and stops are required.
Space between the release bearing and the clutch brake.
Clutch Brake Squeeze
Distance the pedal moves as the load is applied to the clutch brake.
Clutch Lever Ratio
An internal ratio for the clutch of the clamp load applied to the driven discs, divided by the maximum load at the release bearing required to release the clutch.
The clutch torque rating, normally calculated as a static condition.
Free Pedal Travel
Pedal travel as the release fork tips travel through the yoke gap.
A clutch that uses paired friction surfaces on the input and output shaft to transmit the torque.
A clutch operated by hydraulic pressure.
Full movement of the pedal, from the top of the stroke to, and including, the clutch, transmission, driveline, axle and tires.
Release Bearing Travel
Distance the release bearing moves during the release of the clutch.
Release Pedal Travel
Distance the pedal moves during release bearing travel.
Slip the Clutch
To operate the clutch so that it partially disengages, as when keeping up the revs when driving off; causes wear on the clutch.
Assemblies using soft-rate damped driven disc assemblies.
To begin to transmit the drive when the clutch is engaged.
A clutch immersed in a cooling lubricating fluid, which also keeps the surfaces clean and gives smoother performance and longer life.
Space between the yoke fingers and the clutch release bearing.
- OGURA Industrial Corp Manufacturer of clutches, some great pages describing different types and how they work.