Manufactured by PRS Bearings, the PRB120 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB120CP0, SILVERTHIN SB120CP0. Key dimensional parameters include a 304.8 mm bore diameter, a 320.675 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.
PRB120 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB120CP0, SILVERTHIN SB120CP0 |
|---|---|
| Overview | |
| Basic Model | PRB120 |
| Weight | 0.376 kg |
| Dimensions | |
| Bore Dia (d, mm) | 304.8 mm |
| Bore Dia (d, in) | 12 in |
| Outer Dia (D, mm) | 320.675 mm |
| Outer Dia (D, in) | 12.625 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 6,846 kN |
| Static Load (Cor) | 22,241 kN |
| Performance | |
| Limit Speed (rpm) | 1,620 rpm |
7.938 mm 320.675 mm 304.8 mm PRB120 Frequently Asked Questions about PRB120 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The precise manufacturing of the PRS Bearings PRB120 results in stable, predictable vibration baselines. This makes it highly compatible with modern IoT condition monitoring sensors for early fault detection.
The PRB120 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 304.8 mm, an outer diameter of 320.675 mm, and a width of 7.938 mm. PRS Bearings utilizes advanced grinding technology to ensure a radial section wall thickness of 7.9 mm and a balanced D/d ratio of 1.05 for high-precision housing fits.
Every PRB120 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.
Yes, beyond standard ISO specifications, PRS Bearings can produce the PRB120 with tailored radial internal clearances and ultra-precision accuracy classes to meet the strict demands of specialized OEM applications.