Manufactured by PRS Bearings, the PRA050 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KA050CP0, SILVERTHIN SA050CP0. Key dimensional parameters include a 127 mm bore diameter, a 139.7 mm outer diameter, and a 6.35 mm overall width. With matching boundary dimensions, this component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
PRA050 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KA050CP0, SILVERTHIN SA050CP0 |
|---|---|
| Overview | |
| Basic Model | PRA050 |
| Weight | 0.109 kg |
| Dimensions | |
| Bore Dia (d, mm) | 127 mm |
| Bore Dia (d, in) | 5 in |
| Outer Dia (D, mm) | 139.7 mm |
| Outer Dia (D, in) | 5.5 in |
| Width (B, mm) | 6.35 mm |
| Width (B, in) | 0.25 in |
| Load Ratings | |
| Dynamic Load (Cr) | 2,882 kN |
| Static Load (Cor) | 7,073 kN |
| Performance | |
| Limit Speed (rpm) | 3,810 rpm |
6.35 mm 139.7 mm 127 mm PRA050 Frequently Asked Questions about PRA050 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To maximize the performance of the PRA050, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 127 mm bore. For the 139.7 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.
The PRA050 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 127 mm, an outer diameter of 139.7 mm, and a width of 6.35 mm. PRS Bearings utilizes advanced grinding technology to ensure a radial section wall thickness of 6.3 mm and a balanced D/d ratio of 1.1 for high-precision housing fits.
Yes, beyond standard ISO specifications, PRS Bearings can produce the PRA050 with tailored radial internal clearances and ultra-precision accuracy classes to meet the strict demands of specialized OEM applications.
As a dedicated bearing manufacturer, PRS Bearings maintains strategic inventory of the PRA050 for prompt dispatch. For large OEM forecast orders, our lean production lines guarantee highly competitive lead times.