Manufactured by PRS Bearings, the PRB050 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB050CP0, SILVERTHIN SB050CP0. Key dimensional parameters include a 127 mm bore diameter, a 142.875 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.
PRB050 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB050CP0, SILVERTHIN SB050CP0 |
|---|---|
| Overview | |
| Basic Model | PRB050 |
| Weight | 0.172 kg |
| Dimensions | |
| Bore Dia (d, mm) | 127 mm |
| Bore Dia (d, in) | 5 in |
| Outer Dia (D, mm) | 142.875 mm |
| Outer Dia (D, in) | 5.625 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 4,150 kN |
| Static Load (Cor) | 9,564 kN |
| Performance | |
| Limit Speed (rpm) | 3,760 rpm |
7.938 mm 142.875 mm 127 mm PRB050 Frequently Asked Questions about PRB050 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The PRS Bearings PRB050 features precision-machined corner chamfers designed to facilitate easier mounting. These ISO-standard chamfers ensure that the PR Radial Contact Ball Bearing fits snugly against shaft shoulders, preventing stress concentration at the 127 mm bore interface.
The PRB050 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 127 mm, an outer diameter of 142.875 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 1.12 for high-precision housing fits.
The standard PRB050 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 127 mm x 142.875 mm dimensions without warping.
Under optimal lubrication conditions, the PRS Bearings PRB050 can reach a limiting speed of 3,760 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.