Manufactured by PRS Bearings, the PRG047 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KG047CP0, SILVERTHIN SG047CP0. Key dimensional parameters include a 120.65 mm bore diameter, a 171.45 mm outer diameter, and a 25.4 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.
PRG047 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KG047CP0, SILVERTHIN SG047CP0 |
|---|---|
| Overview | |
| Basic Model | PRG047 |
| Weight | 1.86 kg |
| Dimensions | |
| Bore Dia (d, mm) | 120.65 mm |
| Bore Dia (d, in) | 4.75 in |
| Outer Dia (D, mm) | 171.45 mm |
| Outer Dia (D, in) | 6.75 in |
| Width (B, mm) | 25.4 mm |
| Width (B, in) | 1 in |
| Load Ratings | |
| Dynamic Load (Cr) | 28,856 kN |
| Static Load (Cor) | 41,368 kN |
| Performance | |
| Limit Speed (rpm) | 3,480 rpm |
25.4 mm 171.45 mm 120.65 mm PRG047 Frequently Asked Questions about PRG047 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, while the standard PRS Bearings PRG047 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 PRG047 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 120.65 mm, an outer diameter of 171.45 mm, and a width of 25.4 mm. PRS Bearings utilizes advanced grinding technology to ensure a radial section wall thickness of 25.4 mm and a balanced D/d ratio of 1.42 for high-precision housing fits.
To maximize the performance of the PRG047, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 120.65 mm bore. For the 171.45 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.
The standard PRS Bearings PRG047 is designed for rigid configurations. For optimal performance, strict alignment of the 120.65 mm bore is critical, though PRS Bearings engineers can provide self-aligning bearing alternatives if your equipment is prone to deflection.