Type CH clutches are designed specifically for heavy duty clutch and brake applications, and can be air or hydraulically actuated. The friction disc packs are suitable for either wet or dry operation. Actuation is accomplished through internal shaft and clutch passages. When used as a wet clutch, coolant oil may be applied as a splash or spray or forced through the friction disc pack from an internal shaft passage. The clutch hub is bored and keyseated for shaft mounting. Torque is transferred from the disc pack to a splined drive ring.
Pressurizing the cylinder with fluid or air forces the piston to clamp and lock the friction and separator discs, and release springs. Torque is transferred through the clutch to the drive cup. When pressure is lifted, the release springs take apart the separator discs and maintain a running clearance between separator and friction disc surfaces.
Maximum allowable pressure is 200 psi (13,8 bar)
for wet operation and 120 psi (8,3 bar) for dry operation.
Standard operating speeds are from 1 to 2200 RPM. Stronger release springs are available for disengagement at higher speeds.
Higher torque ranges and actuation pressures are available to meet customer’s specific design requirements.