CK-A2052 sprag-type one-way clutch bearing 20x52x23mm
UPC:
Type: one-way clutch bearing
size: 20x52x23mm
Brand: VXB Baering
Quantity: One Bearing
CK-A2052 — CSK2052
Type / Design
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This is a CK-A series sprag-type one-way (overrunning) clutch bearing.
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Non-bearing-supported: it does not inherently support radial or axial loads — you’ll need to pair it with another bearing in your design.
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Comes grease-lubricated from the factory. The inner race (shaft side) and the outer race (housing side) are “keyed” — meaning there are keyways required for torque transmission.
Key Dimensions & Performance
From specification sheets:
| Parameter | Value for CK-A2052 |
|---|---|
| Nominal Torque | 95 N·m |
| Overrunning Speed (Inner Race) | ~1,400 rpm |
| Overrunning Speed (Outer Race) | ~400 rpm |
| Outer Diameter (D) | 52 mm |
| Width (B) | 23 mm |
| Bore / Inner Diameter (d) | 20 mm |
| Inner Race Thickness (C) | ~24 mm |
| Keyway (Outer / Inner) | Outer: 3 × 1.8 mm; Inner: 3 × 1.4 mm |
| Bearing Inside (Reference Bearing) | 6305 (this is the standard bearing size used in that race) |
| Weight | ~ 0.25 kg |
Material
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Typically made from GCr15 chrome steel, which is common for sprag / clutch bearings in this series.
Applications
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Commonly used in industrial machinery: conveyors, packaging lines, printing, paper-making, weaving, chemical equipment, and more.
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It’s well-suited for overrunning or backstop functions where you need rotation in one direction, and locking in the other.