We offer the best product range of Internal Freewheels FXN Bearing, Internal Freewheels ZZ, Internal Freewheels FN, Internal Freewheels FDN and Internal Freewheels FSN Bearing.
Usage/ApplicationBackstop Overrunning Clutch For application as backstop in installations with high speeds in freewheeling operation. For application as overrunning clutch in installations with low speeds in driving operation.
Internal Freewheels FXN are sprag freewheels without bearing support and with sprag lift-off X.The sprag lift-off X ensures a wear-free freewheeling operation when the inner ring rotates at high speed.The outer ring is pressed into the customer housing. This makes compact, space-saving fitting solutions possible.Nominal torques up to 20 500 Nm. The torque is transmitted on the outer ring by press fit.Bores up to 130 mm. A multitude of standardized bore diameters are available with short delivery times.
Internal Freewheels ZZ are sprag freewheels with bearing support and ball bearing properties. The freewheels are supplied grease-filled for normal operating conditions.The freewheel is built into the customer housing. This makes compact, space-saving fitting solutions possible.Nominal torques up to 325 Nm. The torque is transmitted on the inner ring andor on the outer ring by press fit or keyway connection.Bores up to 40 mm.
Internal Freewheels FN are roller freewheels without bearing support.The freewheel is built into the customer housing. This makes compact, space-saving fitting solutions possible.Nominal torques up to 3 000 Nm. The faces of both sides of the outer ring are provided with grooves for torque transmission.Bores up to 60 mm.
Internal Freewheels FDN are sprag freewheels with anti-friction bearing dimensions.The standard type does not have bearing support. In the case of the standard type, every second sprag has been replaced by a cylindrical roller; this freewheel can accept radial forces.Nominal torques up to 2 400 Nm. The torque is transmitted on the outer ring by press fit.Bores up to 80 mm. A multitude of standardized bore diameters are available with short delivery times.
Internal Freewheels FSN are roller freewheels without bearing support.The freewheel is built into the customer housing. This makes compact, space-saving fitting solutions possible.Nominal torques up to 3 000 Nm. The faces of both sides of the outer ring are provided with grooves for torque transmission.Bores up to 80 mm.
Internal Freewheels FD are sprag freewheels without an inner ring. The customers hardened and ground shaft is used as the inner track.The standard type does not have bearing support. In the case of the standard type, every second sprag has been be replaced by a cylindrical roller; this freewheel can accept radial forces.Nominal torques up to 2 400 Nm. The torque is transmitted on the outer ring by press fit.
Integrated Freewheels FXRV are sprag freewheels without bearing support and with sprag lift-off X. They consist of the Integrated Freewheels FXM with additional torque limiter.The sprag lift-off X ensures a wear-free freewheeling operation when the inner ring rotates at high speed. AdvantagesProtection of gearboxes from overload by unequal load distribution in multiple drivesProtection of gearboxes from dynamic peak torques during the locking processSmaller gearboxes can be used without negatively effecting the safetyProtection of the backstops, as dynamic peak torques are reduced by temporarily slipping.