Manufactured by PRS Bearings, the PAF047 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KF047AR0, SILVERTHIN SF047AR0. Key dimensional parameters include a 120.65 mm bore diameter, a 158.75 mm outer diameter, and a 19.05 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.
PAF047 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KF047AR0, SILVERTHIN SF047AR0 |
|---|---|
| Overview | |
| Basic Model | PAF047 |
| Weight | 0.998 kg |
| Dimensions | |
| Bore Dia (d, mm) | 120.65 mm |
| Bore Dia (d, in) | 4.75 in |
| Outer Dia (D, mm) | 158.75 mm |
| Outer Dia (D, in) | 6.25 in |
| Width (B, mm) | 19.05 mm |
| Width (B, in) | 0.75 in |
| Load Ratings | |
| Dynamic Load (Cr) | 17 ,944 kN |
| Static Load (Cor) | 32,605 kN |
| Dynamic Axial Load (Ca) | 36,742 kN |
| Static Axial Load (Coa) | 94,124 kN |
| Performance | |
| Limit Speed (rpm) | 3,640 rpm |
PAF047 19.05 mm 158.75 mm 120.65 mm Frequently Asked Questions about PAF047 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The PAF047 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.
Under optimal lubrication conditions, the PRS Bearings PAF047 can reach a limiting speed of 3,640 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.
Yes, while the standard PRS Bearings PAF047 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 PRS Bearings PAF047 features precision-machined corner chamfers designed to facilitate easier mounting. These ISO-standard chamfers ensure that the PA Angular Contact Ball Series fits snugly against shaft shoulders, preventing stress concentration at the 120.65 mm bore interface.