Manufactured by PRS Bearings, the PAB055 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KB055AR0, SILVERTHIN SB055AR0. 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.
PAB055 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KB055AR0, SILVERTHIN SB055AR0 |
|---|---|
| Overview | |
| Basic Model | PAB055 |
| 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) | 4,595 kN |
| Static Load (Cor) | 12,188 kN |
| Dynamic Axial Load (Ca) | 11,387 kN |
| Static Axial Load (Coa) | 35,230 kN |
| Performance | |
| Limit Speed (rpm) | 3440 rpm |
PAB055 7.938 mm 155.575 mm 139.7 mm Frequently Asked Questions about PAB055 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every PAB055 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 PAB055 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 L10 life of the PRS Bearings PAB055 is calculated based on its 4,595 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.
PRS Bearings provides the PAB055 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.