Manufactured by PRS Bearings, the PAA020 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KA020AR0, SILVERTHIN SA020AR0. Key dimensional parameters include a 50.8 mm bore diameter, a 63.5 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.
PAA020 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KA020AR0, SILVERTHIN SA020AR0 |
|---|---|
| Overview | |
| Basic Model | PAA020 |
| Weight | 0.045 kg |
| Dimensions | |
| Bore Dia (d, mm) | 50.8 mm |
| Bore Dia (d, in) | 2 in |
| Outer Dia (D, mm) | 63.5 mm |
| Outer Dia (D, in) | 2.5 in |
| Width (B, mm) | 6.35 mm |
| Width (B, in) | 0.25 in |
| Load Ratings | |
| Dynamic Load (Cr) | 1,802 kN |
| Static Load (Cor) | 3,514 kN |
| Dynamic Axial Load (Ca) | 4,270 kN |
| Static Axial Load (Coa) | 10,142 kN |
| Performance | |
| Limit Speed (rpm) | 8,890 rpm |
PAA020 6.35 mm 63.5 mm 50.8 mm Frequently Asked Questions about PAA020 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every PAA020 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 standard PRS Bearings PAA020 is designed for rigid configurations. For optimal performance, strict alignment of the 50.8 mm bore is critical, though PRS Bearings engineers can provide self-aligning bearing alternatives if your equipment is prone to deflection.
PRS Bearings recommends storing the PAA020 in its original packaging in a clean, low-vibration warehouse. Maintaining a relative humidity below 60% and a stable room temperature ensures maximum shelf life.
Under optimal lubrication conditions, the PRS Bearings PAA020 can reach a limiting speed of 8,890 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.