Manufactured by PRS Bearings, the PXB040 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KB040XP0, SILVERTHIN SB040XP0. Key dimensional parameters include a 101.6 mm bore diameter, a 117.475 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.
PXB040 - PX 4-Point Contact Ball Bearing
Technical Specifications
| Direct Interchange | KAYDON KB040XP0, SILVERTHIN SB040XP0 |
|---|---|
| Overview | |
| Basic Model | PXB040 |
| Weight | 0.136 kg |
| Dimensions | |
| Bore Dia (d, mm) | 101.6 mm |
| Bore Dia (d, in) | 4 in |
| Outer Dia (D, mm) | 117.475 mm |
| Outer Dia (D, in) | 4.625 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 4,853 kN |
| Static Load (Cor) | 7,784 kN |
| Dynamic Axial Load (Ca) | 7,651 kN |
| Static Axial Load (Coa) | 19,439 kN |
| Performance | |
| Limit Speed (rpm) | 2,780 rpm |
7.938 mm 117.475 mm 101.6 mm PXB040 Frequently Asked Questions about PXB040 PX 4-Point Contact Ball Bearing
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To maximize the performance of the PXB040, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 101.6 mm bore. For the 117.475 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.
The L10 life of the PRS Bearings PXB040 is calculated based on its 4,853 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.
The PRS Bearings PXB040 features precision-machined corner chamfers designed to facilitate easier mounting. These ISO-standard chamfers ensure that the PX 4-Point Contact Ball Bearing fits snugly against shaft shoulders, preventing stress concentration at the 101.6 mm bore interface.
Engineered for heavy-duty endurance, the PRS Bearings PXB040 offers a dynamic load rating (Cr) of 4,853 and a static load rating (Cor) of 7,784. These ratings reflect PRS Bearings's commitment to using high-fatigue-strength materials for demanding radial and axial force environments.