NSS20 One-Way Backstop Clutch 20x47x14mm - Bearing Support Required
UPC: 00193019059166
Type: One Way Clutch
Applications: Overrunning, Indexing, Backstopping
Dimensions: 20mm x 47mm x 14mm/metric
Inner Diameter: 20mm
NSS20 One-Way Clutch
✔️ 20x47x14mm - Backstop Freewheel - Sprag Style
The NSS20 is a one-way clutch used for overrunning, indexing, and backstopping. It matches the size of a standard 6204 bearing but needs additional support. Ideal for use in conveyors, printing, and industrial machinery where reverse motion must be prevented.
✅ Size: 20mm ID x 47mm OD x 14mm Width
✅ Type: One-Way Sprag Clutch
✅ Applications: Indexing, Backstopping, Overrunning
✅ Torque: 32 TKN Nominal / 80 TKN Max
✅ Inner Race Overrun Speed: 2,200 RPM
✅ Outer Race Overrun Speed: 3,300 RPM
✅ Quantity: 1 Clutch
✅ Requires: Bearing support (use with 6204 bearing)
Dimensions Table (mm):
| d (ID) | D (OD) | D1 | L | s | e | f |
|---|---|---|---|---|---|---|
| 20 | 47 | 40 | 14 | 2.4 | 0.8 | 0.8 |
💡 Why are one-way clutches used in industrial systems?
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They prevent reverse rotation, which is critical for conveyors or vertical transport systems.
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They enable controlled motion in one direction for indexing or overrunning cycles.
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Common in backstopping to protect machinery during power loss or overloads.
Reliable, compact, and essential for systems that need directional control with high torque support.