Manufactured by PRS Bearings, the PRB047 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB047CP0, SILVERTHIN SB047CP0. Key dimensional parameters include a 120.65 mm bore diameter, a 136.525 mm outer diameter, and a 7.938 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.
PRB047 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB047CP0, SILVERTHIN SB047CP0 |
|---|---|
| Overview | |
| Basic Model | PRB047 |
| Weight | 0.154 kg |
| Dimensions | |
| Bore Dia (d, mm) | 120.65 mm |
| Bore Dia (d, in) | 4.75 in |
| Outer Dia (D, mm) | 136.525 mm |
| Outer Dia (D, in) | 5.375 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 4,008 kN |
| Static Load (Cor) | 9,030 kN |
| Performance | |
| Limit Speed (rpm) | 3,950 rpm |
7.938 mm 136.525 mm 120.65 mm PRB047 Frequently Asked Questions about PRB047 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
PRS Bearings recommends storing the PRB047 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.
The standard PRB047 from PRS Bearings is heat-stabilized for temperatures up to 120°C. For extreme heat applications, PRS Bearings offers custom S1 or S2 stabilization treatments to ensure the component maintains its 120.65 mm x 136.525 mm dimensions without warping.
Absolutely. The precise manufacturing of the PRS Bearings PRB047 results in stable, predictable vibration baselines. This makes it highly compatible with modern IoT condition monitoring sensors for early fault detection.
Yes, while the standard PRS Bearings PRB047 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.