Manufactured by PRS Bearings, the PXF055 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KF055XP0, SILVERTHIN SF055XP0. Key dimensional parameters include a 139.7 mm bore diameter, a 177.8 mm outer diameter, and a 19.05 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.
PXF055 - PX 4-Point Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KF055XP0, SILVERTHIN SF055XP0 |
|---|---|
| Overview | |
| Basic Model | PXF055 |
| Weight | 1.134 kg |
| Dimensions | |
| Bore Dia (d, mm) | 139.7 mm |
| Bore Dia (d, in) | 5.5 in |
| Outer Dia (D, mm) | 177.8 mm |
| Outer Dia (D, in) | 7 in |
| Width (B, mm) | 19.05 mm |
| Width (B, in) | 0.75 in |
| Load Ratings | |
| Dynamic Load (Cr) | 24,087 kN |
| Static Load (Cor) | 31,360 kN |
| Dynamic Axial Load (Ca) | 36,475 kN |
| Static Axial Load (Coa) | 78,422 kN |
| Performance | |
| Limit Speed (rpm) | 1,920 rpm |
19.05 mm 177.8 mm 139.7 mm PXF055 Frequently Asked Questions about PXF055 PX 4-Point Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The precise manufacturing of the PRS Bearings PXF055 results in stable, predictable vibration baselines. This makes it highly compatible with modern IoT condition monitoring sensors for early fault detection.
The standard PXF055 from PRS Bearings is heat-stabilized for temperatures up to 120°C. For extreme heat applications, PRS Bearings offers custom S1 or S2 stabilization treatments to ensure the component maintains its 139.7 mm x 177.8 mm dimensions without warping.
PRS Bearings provides the PXF055 with various cage options including high-strength pressed steel, machined brass for high-vibration tasks, or reinforced polymers for the quietest operation in precision machinery.
Under optimal lubrication conditions, the PRS Bearings PXF055 can reach a limiting speed of 1,920 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.