The Stieber GFR Ø45 mm freewheel is a high-speed roller-type clutch engineered for dynamic power transmission. Designed for shafts with Ø45 mm diameter, it supports 1,000 rpm on the inner race and 3,200 rpm on the outer race. With a maximum torque of 1125 Nm, it provides reliable backstop and overrunning functionality in compact drive systems.

As part of Stieber’s modular system, this model is supported by two 160-series ball bearings and requires external oil lubrication. The plain outer race accepts H7 bores, and torque is transferred via bolts through a cover plate. Typically used with F-series covers for sealing and torque transfer. Two paper seals are included with delivery.

Technical Specifications:

• Shaft diameter: Ø45 mm

• Overrunning speed (imax): 1,000 rpm

• amax (outer race): 3,200 rpm

• Max torque: 1125 Nm

• Bolt holes: 8

• Material: Steel

• Lubrication: Oil (external)

• Outer race: Plain, H7 fit

• Bearings: 2 x 160-series (non-axial load)

Typical Applications:

• Overrunning clutches in modular systems

• Indexing and backstop functionality

• Space-saving industrial drive solutions