Manufactured by PRS Bearings, the PAD250 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KD250AR0, SILVERTHIN SD250AR0. 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.
PAD250 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KD250AR0, SILVERTHIN SD250AR0 |
|---|---|
| Overview | |
| Basic Model | PAD250 |
| 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) | 21,832 kN |
| Static Load (Cor) | 89,587 kN |
| Dynamic Axial Load (Ca) | 60,229 kN |
| Static Axial Load (Coa) | 258,620 kN |
| Performance | |
| Limit Speed (rpm) | 780 rpm |
PAD250 12.7 mm 660.4 mm 635 mm Frequently Asked Questions about PAD250 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every PRS Bearings PAD250 is treated with premium rust-preventative oil and vacuum-sealed or wrapped in VCI paper. This guarantees that the 635 mm bore and 660.4 mm outer surfaces remain pristine during overseas transit.
Every PAD250 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.
PRS Bearings recommends storing the PAD250 in its original packaging in a clean, low-vibration warehouse. Maintaining a relative humidity below 60% and a stable room temperature ensures maximum shelf life.
PRS Bearings provides the PAD250 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.