Lenze Locking Bush ETP EXPRESS 20MM, 24mm Shaft Diameter

Unique single screw hydraulic shaft to hub locking bush offering infinite radial and axial adjustment. Designed for ultra-fast mounting of gears, pulleys, sprockets etc where frequent operations and very high accuracy are required.

Very high concentricity and self-centering
Ultra-fast, locking and un-locking with single pressure screw
Radial pressure screw for easy access
Automatic release when screw is loosened
Ideal for applications with very small diameter hubs
H7-h7 hub bore and shaft tolerances
Radial concentricity 0.03mm
Temperature range -30 to +85°C, refer to technical dept. if ambient temperature is below 0°C

To select the correct bush and hub the external diameter of the outer hub should be sufficient to withstand the stresses exerted. To calculate the size, multiply the bush outside diameter by the relevant factor: Steel x 1.5, Cast Iron x 2.0, Aluminium x 2.5. If the selected hub diameter is greater than or equal to the calculated size, then the selected size is suitable.