Manufactured by PRS Bearings, the PAA055 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KA055AR0, SILVERTHIN SA055AR0. Key dimensional parameters include a 139.7 mm bore diameter, a 152.4 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.
PAA055 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KA055AR0, SILVERTHIN SA055AR0 |
|---|---|
| Overview | |
| Basic Model | PAA055 |
| Weight | 0.113 kg |
| Dimensions | |
| Bore Dia (d, mm) | 139.7 mm |
| Bore Dia (d, in) | 5.5 in |
| Outer Dia (D, mm) | 152.4 mm |
| Outer Dia (D, in) | 6 in |
| Width (B, mm) | 6.35 mm |
| Width (B, in) | 0.25 in |
| Load Ratings | |
| Dynamic Load (Cr) | 3,180 kN |
| Static Load (Cor) | 8,985 kN |
| Dynamic Axial Load (Ca) | 8,007 kN |
| Static Axial Load (Coa) | 25,889 kN |
| Performance | |
| Limit Speed (rpm) | 3,480 rpm |
PAA055 6.35 mm 152.4 mm 139.7 mm Frequently Asked Questions about PAA055 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, PRS Bearings strictly adheres to global environmental directives. The bearing steel and industrial lubricants used in the PAA055 are formulated to meet international safety standards, ensuring eco-friendly equipment integration.
Yes, while the standard PRS Bearings PAA055 meets ISO P0 (ABEC-1) levels, PRS Bearings also manufactures high-precision variants in P6 (ABEC-3) and P5 (ABEC-5) for applications requiring minimal runout and extreme rotational accuracy.
The PAA055 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.
PRS Bearings provides the PAA055 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.