Manufactured by PRS Bearings, the PXB045 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB045XP0, SILVERTHIN SB045XP0. Key dimensional parameters include a 114.3 mm bore diameter, a 130.175 mm outer diameter, and a 7.938 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.
PXB045 - PX 4-Point Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB045XP0, SILVERTHIN SB045XP0 |
|---|---|
| Overview | |
| Basic Model | PXB045 |
| Weight | 0.15 kg |
| Dimensions | |
| Bore Dia (d, mm) | 114.3 mm |
| Bore Dia (d, in) | 4.5 in |
| Outer Dia (D, mm) | 130.175 mm |
| Outer Dia (D, in) | 5.125 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 5,182 kN |
| Static Load (Cor) | 8,674 kN |
| Dynamic Axial Load (Ca) | 8,229 kN |
| Static Axial Load (Coa) | 21,707 kN |
| Performance | |
| Limit Speed (rpm) | 2,490 rpm |
7.938 mm 130.175 mm 114.3 mm PXB045 Frequently Asked Questions about PXB045 PX 4-Point Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Certainly. While the standard PXB045 is pre-filled with high-grade industrial lubricant, PRS Bearings can provide custom fills, including food-grade (NSF H1), high-temperature, or extreme-pressure greases tailored to your operational needs.
The PXB045 utilizes high-purity bearing steel treated with PRS Bearings's advanced thermal processes. This creates a tough core that effectively absorbs shock loads while maintaining a highly wear-resistant surface on the raceways.
The standard PXB045 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 130.175 mm dimensions without warping.
Yes. Through optimized internal geometry and precision honing, PRS Bearings minimizes the rolling friction of the PXB045. This lowers operating temperatures and power consumption, particularly when running near its 2,490 RPM threshold.