Manufactured by PRS Bearings, the PXB055 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB055XP0, SILVERTHIN SB055XP0. Key dimensional parameters include a 139.7 mm bore diameter, a 155.575 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.
PXB055 - PX 4-Point Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB055XP0, SILVERTHIN SB055XP0 |
|---|---|
| Overview | |
| Basic Model | PXB055 |
| Weight | 0.186 kg |
| Dimensions | |
| Bore Dia (d, mm) | 139.7 mm |
| Bore Dia (d, in) | 5.5 in |
| Outer Dia (D, mm) | 155.575 mm |
| Outer Dia (D, in) | 6.125 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 5,800 kN |
| Static Load (Cor) | 10,498 kN |
| Dynamic Axial Load (Ca) | 9,341 kN |
| Static Axial Load (Coa) | 26,200 kN |
| Performance | |
| Limit Speed (rpm) | 2,060 rpm |
7.938 mm 155.575 mm 139.7 mm PXB055 Frequently Asked Questions about PXB055 PX 4-Point Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The standard PXB055 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 155.575 mm dimensions without warping.
Every PXB055 batch undergoes 100% automated vibration and noise testing at the PRS Bearings factory. We guarantee compliance with Z1/V1 standards, with premium Z3/V3 options available for high-end electric motors.
The L10 life of the PRS Bearings PXB055 is calculated based on its 5,800 dynamic capacity and your specific application loads. By maintaining clean operating conditions and using PRS Bearings's recommended lubrication, users can expect significantly extended service intervals.
Absolutely. The PRS Bearings PXB055 is a drop-in replacement for international models like KAYDON KB055XP0, SILVERTHIN SB055XP0. It follows universal ISO dimensions, making it easy to upgrade your supply chain to PRS Bearings's high-quality standards.