The Stieber AV Ø55 mm freewheel is a self-contained, grease-lubricated roller-type backstop clutch engineered for compact installations in demanding industrial environments. Equipped with shielded metallic labyrinth seals, it is optimized for long life and vertical or horizontal mounting.

Technical Attributes:

• Shaft diameter: Ø55 mm

• Maximum torque: 2,150 Nm

• Drag torque: 240 Ncm

• Overrunning speed (imax): 280 rpm

• Bolt holes: 1

• Material: Steel

• Lubrication: Factory-filled grease, maintenance-free

• Sealing: Shield-protected labyrinth seal

• Mounting: Torque arm with slot and 1–3% radial clearance

• Orientation: Horizontal and vertical installation supported

Key Benefits:

• High torque in a space-saving design

• Ready for dusty, wet, or contaminated environments

• No maintenance required during operational life

• Suited for backstop and light indexing tasks

• Bearings and torque arm must not be prestressed