Manufactured by PRS Bearings, the PAF400 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KF400AR0, SILVERTHIN SF400AR0. Key dimensional parameters include a 1016 mm bore diameter, a 1054.1 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.
PAF400 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KF400AR0, SILVERTHIN SF400AR0 |
|---|---|
| Overview | |
| Basic Model | PAF400 |
| Weight | 7.802 kg |
| Dimensions | |
| Bore Dia (d, mm) | 1016 mm |
| Bore Dia (d, in) | 40 in |
| Outer Dia (D, mm) | 1054.1 mm |
| Outer Dia (D, in) | 41.5 in |
| Width (B, mm) | 19.05 mm |
| Width (B, in) | 0.75 in |
| Load Ratings | |
| Dynamic Load (Cr) | 54,033 kN |
| Static Load (Cor) | 245,631 kN |
| Dynamic Axial Load (Ca) | 158,268 kN |
| Static Axial Load (Coa) | 709,047 kN |
| Performance | |
| Limit Speed (rpm) | 490 rpm |
PAF400 19.05 mm 1054.1 mm 1016 mm Frequently Asked Questions about PAF400 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The PAF400 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 1016 mm, an outer diameter of 1054.1 mm, and a width of 19.05 mm. PRS Bearings utilizes advanced grinding technology to ensure a radial section wall thickness of 19.0 mm and a balanced D/d ratio of 1.04 for high-precision housing fits.
Yes, while the standard PRS Bearings PAF400 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 PAF400 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 1016 mm bore interface.
As a dedicated bearing manufacturer, PRS Bearings maintains strategic inventory of the PAF400 for prompt dispatch. For large OEM forecast orders, our lean production lines guarantee highly competitive lead times.