Manufactured by PRS Bearings, the PXA045 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KA045XP0, SILVERTHIN SA045XP0. Key dimensional parameters include a 114.3 mm bore diameter, a 127 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.
PXA045 - PX 4-Point Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KA045XP0, SILVERTHIN SA045XP0 |
|---|---|
| Overview | |
| Basic Model | PXA045 |
| Weight | 0.1 kg |
| Dimensions | |
| Bore Dia (d, mm) | 114.3 mm |
| Bore Dia (d, in) | 4.5 in |
| Outer Dia (D, mm) | 127 mm |
| Outer Dia (D, in) | 5 in |
| Width (B, mm) | 6.35 mm |
| Width (B, in) | 0.25 in |
| Load Ratings | |
| Dynamic Load (Cr) | 3,599 kN |
| Static Load (Cor) | 6,405 kN |
| Dynamic Axial Load (Ca) | 5,827 kN |
| Static Axial Load (Coa) | 16,014 kN |
| Performance | |
| Limit Speed (rpm) | 2,530 rpm |
6.35 mm 127 mm 114.3 mm PXA045 Frequently Asked Questions about PXA045 PX 4-Point Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To maximize the performance of the PXA045, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 114.3 mm bore. For the 127 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.
The standard PXA045 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 114.3 mm x 127 mm dimensions without warping.
Depending on your thermal and fit requirements, PRS Bearings supplies the PXA045 in C0 (Normal), C2 (Tight), or C3 (Loose) internal radial clearances. Proper clearance selection by PRS Bearings specialists helps prevent premature bearing seizure.
The PXA045 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 114.3 mm, an outer diameter of 127 mm, and a width of 6.35 mm. PRS Bearings utilizes advanced grinding technology to ensure a radial section wall thickness of 6.4 mm and a balanced D/d ratio of 1.11 for high-precision housing fits.