Pneumatic Air Clutches - CM Series
Air clutches and brakes are the go-to solutions for heavy duty applications. Available in four different series spanning a range of sizes and features, you’ll find the perfect fit for grinding mills, marine propulsion, drill rigs, and much more.
- Long life - Rugged tire-like constricting tube
- Even wear - Force applied uniformly at optimum radius
- Many options - Wide torque capacity range
CM – specifically engineered for the marine industry on diesel-driven, reverse-reduction gears
CM Series
- Same basic features as CB elements
- Ventilated construction for greater heat dissipation
- Allows for double- and triple-element assemblies
- Torque capacities up to 613,000 lb•in (369,360 N•m)
- Available in 5 sizes
How constricting elements work
Constricting drum clutch and brake elements use a rugged, tire-like neoprene and cord tube that expands radially inward when pressurised. The expansion forces the friction surface against a cylindrical drum to create torque.
Force applied at maximum radius from axis
Instead of the reduced radius that occurs in plate clutches, constricting drum clutches concentrate the frictional force on the outside drum diameter to achieve maximum torque. The drum radius acts as the torque lever arm to generate and apply force uniformly around the drum circumference.