Lenze Locking Bush ETP CLASSIC 20MM, 20mm Shaft Diameter

Unique hydraulic shaft to hub locking bush offering infinite radial and axial adjustment. Designed for frequent operations for very accurate mounting of gears, pulleys, sprockets etc.

High concentricity and self-centering
Fast, easy locking and un-locking with few pressure screws
Automatic release when screws are loosened
Ideal for applications with smaller diameter hubs
H7-h7 hub bore and shaft tolerances
Radial concentricity 0.04mm
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 1.7, Cast Iron x 2.2, Aluminium x 2.7. If the selected hub diameter is greater than or equal to the calculated size, then the selected size is suitable.