Manufactured by PRS Bearings, the PRB042 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB042CP0, SILVERTHIN SB042CP0. Key dimensional parameters include a 107.95 mm bore diameter, a 123.825 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.
PRB042 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB042CP0, SILVERTHIN SB042CP0 |
|---|---|
| Overview | |
| Basic Model | PRB042 |
| Weight | 0.141 kg |
| Dimensions | |
| Bore Dia (d, mm) | 107.95 mm |
| Bore Dia (d, in) | 4.25 in |
| Outer Dia (D, mm) | 123.825 mm |
| Outer Dia (D, in) | 4.875 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 3,763 kN |
| Static Load (Cor) | 8,140 kN |
| Performance | |
| Limit Speed (rpm) | 4,380 rpm |
7.938 mm 123.825 mm 107.95 mm PRB042 Frequently Asked Questions about PRB042 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The standard PRB042 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 107.95 mm x 123.825 mm dimensions without warping.
Thanks to its robust 3,763 dynamic load capacity, the PRS Bearings PRB042 is highly sought after in mining, metallurgy, agricultural machinery, and heavy industrial gearboxes where operational reliability is paramount.
Yes. As part of our B2B commitment, if a PRB042 experiences unexpected issues in the field, PRS Bearings engineers can perform detailed metallurgical and wear analysis to identify root causes and optimize your future setups.
Yes, while the standard PRS Bearings PRB042 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.