ASNU20 One-Way Backstop Clutch 20x52x21mm - Bearing Support Required

ASNU20 one way clutch backstop freewheel
✔️ sprag one way clutch 20x52x21 mm external bearing support

This single ASNU20 one way clutch is designed to allow rotation in one direction while locking instantly in the other. It’s commonly used for backstopping, overrunning, and indexing in conveyors, lifts, and industrial drives where reverse motion must be prevented during power loss.

✅ Inner diameter: 20 mm
✅ Outer diameter: 52 mm
✅ Width: 21 mm
✅ One way sprag clutch backstop design
✅ External bearing support required
✅ Applications: overrunning, indexing, backstopping
✅ Inner race overrun speed: 2,100 RPM
✅ Outer race overrun speed: 3,100 RPM
✅ Rated torque: 62 TKN
✅ Maximum torque: 155 TKN
✅ Pack size: one clutch

Dimensions
d: 20 mm
D: 52 mm
L: 21 mm
D2: 42 mm
b: 6 mm
t: 2.3 mm
s: 2.4 mm
e: 1.2 mm
f: 0.8 mm

💡 What is a one way backstop clutch used for in conveyor and drive systems?
One way clutches are used to control motion direction and prevent rollback.

• Allows free rotation in the drive direction while locking instantly in reverse

• Protects equipment during power outages or sudden stops

• Common in conveyors, elevators, mining equipment, and industrial machinery

Use this clutch when you need reliable anti reverse protection and smooth one direction operation in demanding mechanical systems.