The Stieber NFR Ø8 mm freewheel is a compact roller-type unit without integrated sealing, engineered for low-speed overrunning and indexing functions. As part of the NFR series, it features a steel-on-steel bearing interface supported by the inner race and requires external oil lubrication and proper housing sealing from the user system.

Technical Specifications:

• Shaft diameter: Ø8 mm

• Overrunning speed (imax): 1000 rpm

• Max speed outer race (amax): 1000 rpm

• Max torque: 20 Nm

• Material: Steel

• Bearing support: Steel-on-steel (inner race supported)

• Sealing: Not included — must be externally provided

• Lubrication: Oil-lubricated (external supply)

• Outer race fit: Positive n6 tolerance for press fit in H7 housing

• Torque transmission: Additional side notches

• Inner race: Keyed for torque locking

Application Notes:

• Requires external lubrication and sealing

• Outer housing must be strong and dimensionally stable

• Ideal for compact indexing and overrunning systems

• Suitable for both horizontal and vertical mounting