Complete freewheel clutch units

GMN ball bearing freewheel clutch units are suitable for low and medium torque requirements. The FK, FKN and FKNN series have an integrated ball bearing and are also optionally available pre-lubricated with grease and seal rings (2RS models). GMN ball bearing freewheel clutch units without seals are suitable for either oil or grease lubrication. All GMN ball bearing freewheel clutch units can be used as indexing clutches, backstops or as overrunning clutches.

GMN insert elements are available in many different diameters. The FE 400 Z, FE 400 Z2 and FE 8000 Z series are equipped with a tension spring. The FE 400 M series has a meander spring. GMN insert elements are designed for installation on hardened and ground connecting parts. They are suitable for either oil or grease lubrication. All GMN insert elements can be used as indexing clutches, backstops or as overrunning clutches.

Based on its many years of experience in the development and production of high-quality machine components, GMN has chosen to specialize in the production of efficient, long-life sprag type freewheel clutches. The standardized model series offer a large selection of feature options to furnish effective freewheel clutch solutions for almost any field of application. The functional principle of sprag type freewheel clutches is based on static friction. A certain number of sprags are in constant friction contact with the connecting parts. Sprags are components with variable height. They are uprighted when the connecting parts are rotated and clamped between the connecting parts while there is static friction between sprags and connecting parts. The static friction is guaranteed by a specific geometry (clamping angle) of the sprags to the connecting parts. GMN sprag type freewheel clutches can be used as indexing clutches, backstops or as overrunning clutches.