RSBWTIANIU
Compact Backstop Device .
RSBW Series Sprag Backstop with Torque Arm
RSBW is a compact Tianiu sprag backstop with torque arm: a sprag clutch in a housing centred by plain bearings for low speeds and sealed with shield-protected O-rings. It is delivered grease lubricated, ready for installation in a horizontal or vertical position, and is designed for high humidity and water splash areas. A bolt passing through the slot in the torque arm provides the rotational stop, with axial and radial clearance — the arm and bearings must not be prestressed. 13 sizes: shaft 20–90 mm, nominal torque 375–4,875 N·m, overrunning speed up to 400 rpm.
Applications
- Backstops for drives with limited space
- Equipment in high-humidity and water-splash areas
- Vertical and horizontal drive shafts
Specifications
- Type
- sprag backstop with torque arm, plain bearings, O-ring seals
- Nominal torque TKN
- 375–4,875 N·m
- Shaft diameter
- 20–90 mm (H7)
- Max. inner race overrunning speed
- 200–400 rpm
- Housing outer diameter
- 106–190 mm; torque arm slot b 18–25 mm (H11)
- Sizes
- 13 (RSBW20 … RSBW90, incl. 35M)
- Lubrication and mounting
- grease, factory filled; horizontal or vertical
- Weight
- 2–9.9 kg