Manufactured by PRS Bearings, the PXB140 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB140XP0, SILVERTHIN SB140XP0. Key dimensional parameters include a 355.6 mm bore diameter, a 371.475 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.
PXB140 - PX 4-Point Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB140XP0, SILVERTHIN SB140XP0 |
|---|---|
| Overview | |
| Basic Model | PXB140 |
| Weight | 0.476 kg |
| Dimensions | |
| Bore Dia (d, mm) | 355.6 mm |
| Bore Dia (d, in) | 14 in |
| Outer Dia (D, mm) | 371.475 mm |
| Outer Dia (D, in) | 14.625 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 9,937 kN |
| Static Load (Cor) | 25,844 kN |
| Dynamic Axial Load (Ca) | 17,081 kN |
| Static Axial Load (Coa) | 6,806 kN |
| Performance | |
| Limit Speed (rpm) | 840 rpm |
7.938 mm 371.475 mm 355.6 mm PXB140 Frequently Asked Questions about PXB140 PX 4-Point Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every PRS Bearings PXB140 is treated with premium rust-preventative oil and vacuum-sealed or wrapped in VCI paper. This guarantees that the 355.6 mm bore and 371.475 mm outer surfaces remain pristine during overseas transit.
Yes, while the standard PRS Bearings PXB140 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.
Depending on your thermal and fit requirements, PRS Bearings supplies the PXB140 in C0 (Normal), C2 (Tight), or C3 (Loose) internal radial clearances. Proper clearance selection by PRS Bearings specialists helps prevent premature bearing seizure.
The L10 life of the PRS Bearings PXB140 is calculated based on its 9,937 dynamic capacity and your specific application loads. By maintaining clean operating conditions and using PRS Bearings's recommended lubrication, users can expect significantly extended service intervals.