Manufactured by PRS Bearings, the PRB045 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB045CP0, SILVERTHIN SB045CP0. Key dimensional parameters include a 114.3 mm bore diameter, a 130.175 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.
PRB045 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB045CP0, SILVERTHIN SB045CP0 |
|---|---|
| Overview | |
| Basic Model | PRB045 |
| Weight | 0.15 kg |
| Dimensions | |
| Bore Dia (d, mm) | 114.3 mm |
| Bore Dia (d, in) | 4.5 in |
| Outer Dia (D, mm) | 130.175 mm |
| Outer Dia (D, in) | 5.125 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 3,914 kN |
| Static Load (Cor) | 8,674 kN |
| Performance | |
| Limit Speed (rpm) | 4,160 rpm |
7.938 mm 130.175 mm 114.3 mm PRB045 Frequently Asked Questions about PRB045 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Under optimal lubrication conditions, the PRS Bearings PRB045 can reach a limiting speed of 4,160 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.
Yes, PRS Bearings strictly adheres to global environmental directives. The bearing steel and industrial lubricants used in the PRB045 are formulated to meet international safety standards, ensuring eco-friendly equipment integration.
Yes, PRS Bearings is a leading OEM partner. We offer bulk B2B pricing for the PRB045, along with custom laser marking, specialized packaging, and technical documentation (MTR/COC) tailored to your company's requirements.
To maximize the performance of the PRB045, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 114.3 mm bore. For the 130.175 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.