Manufactured by PRS Bearings, the PXA050 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KA050XP0, SILVERTHIN SA050XP0. 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.
PXA050 - PX 4-Point Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KA050XP0, SILVERTHIN SA050XP0 |
|---|---|
| Overview | |
| Basic Model | PXA050 |
| 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) | 3,821 kN |
| Static Load (Cor) | 7,073 kN |
| Dynamic Axial Load (Ca) | 6,228 kN |
| Static Axial Load (Coa) | 17,704 kN |
| Performance | |
| Limit Speed (rpm) | 2,290 rpm |
6.35 mm 139.7 mm 127 mm PXA050 Frequently Asked Questions about PXA050 PX 4-Point Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Thanks to its robust 3,821 dynamic load capacity, the PRS Bearings PXA050 is highly sought after in mining, metallurgy, agricultural machinery, and heavy industrial gearboxes where operational reliability is paramount.
Under optimal lubrication conditions, the PRS Bearings PXA050 can reach a limiting speed of 2,290 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.
To maximize the performance of the PXA050, 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.
Yes, beyond standard ISO specifications, PRS Bearings can produce the PXA050 with tailored radial internal clearances and ultra-precision accuracy classes to meet the strict demands of specialized OEM applications.