The Stieber ASK 60mm freewheel is a robust roller-type unit, internally supported by two rows of precision roller bearings. Designed for Ø60 mm shafts, it is grease-lubricated and sealed to provide maintenance-free, dust-protected operation. The unit handles a maximum torque of 250 Nm with a drag torque of 25 Nm, making it suitable for indexing, overrunning, or backstop applications in industrial systems.

The ASK series matches the outer dimensions of standard 60-series radial ball bearings, facilitating direct integration. Torque is transmitted via press-fit on both the inner and outer races, necessitating precision mounting conditions. Standard radial clearance is C4 to accommodate the interference fit.

Recommended mounting tolerances:

• Shaft: h6 or j6

• Housing bore: K6
  Axial loads are not permitted and must be absorbed by external thrust bearings.

Key Specifications:

• Shaft diameter: Ø60 mm

• Maximum torque: 250 Nm

• Drag torque: 25 Nm

• Type: Roller-type freewheel

• Bearing support: Two-row internal roller bearings

• Lubrication: Grease (sealed)

• Outer dimensions: Compatible with 60-series bearings

• Radial clearance: C4

• Mounting:

  • Shaft: h6 or j6

  • Housing: K6

• Axial load: Not permitted (use external thrust bearings)

• Material: Steel