Manufactured by PRS Bearings, the PRD250 is a precision PR Radial Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KD250CP0, SILVERTHIN SD250CP0. Key dimensional parameters include a 635 mm bore diameter, a 660.4 mm outer diameter, and a 12.7 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.
PRD250 - PR Radial Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KD250CP0, SILVERTHIN SD250CP0 |
|---|---|
| Overview | |
| Basic Model | PRD250 |
| Weight | 2.173 kg |
| Dimensions | |
| Bore Dia (d, mm) | 635 mm |
| Bore Dia (d, in) | 25 in |
| Outer Dia (D, mm) | 660.4 mm |
| Outer Dia (D, in) | 26 in |
| Width (B, mm) | 12.7 mm |
| Width (B, in) | 0.5 in |
| Load Ratings | |
| Dynamic Load (Cr) | 20..858 kN |
| Static Load (Cor) | 77,577 kN |
| Performance | |
| Limit Speed (rpm) | 780 rpm |
12.7 mm 660.4 mm 635 mm PRD250 Frequently Asked Questions about PRD250 PR Radial Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, PRS Bearings strictly adheres to global environmental directives. The bearing steel and industrial lubricants used in the PRD250 are formulated to meet international safety standards, ensuring eco-friendly equipment integration.
PRS Bearings provides the PRD250 with various cage options including high-strength pressed steel, machined brass for high-vibration tasks, or reinforced polymers for the quietest operation in precision machinery.
Depending on your thermal and fit requirements, PRS Bearings supplies the PRD250 in C0 (Normal), C2 (Tight), or C3 (Loose) internal radial clearances. Proper clearance selection by PRS Bearings specialists helps prevent premature bearing seizure.
To maximize the performance of the PRD250, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 635 mm bore. For the 660.4 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.