Idler pulley units are tensioning systems for belt drives and idler units. They

increase the wrap angle in belt drives and can therefore support higher power levels or allow smaller units to be used
Compensate for belt stretch resulting from operation
Allow shorter center distances
Reduce the wear on the belt drive

The ready-to-fit units comprise deep drawn, profiled sheet steel pulley halves riveted together and deep groove ball bearings. Pulleys of larger diameters are additionally welded together. A lead chamfer on the pulley profile prevents damage to the belt. Due to the sheet steel construction, the additional rotating masses and the out-of-balance masses generated are low.

Type A is suitable for V-belts, type B for flat, V and round belts, type D for round belts, steel cables and hemp ropes.

Parameter Name	Parameter Value
Type	groove rotating
Applications	belt