PXA090 - PX 4-Point Contact Ball Bearing

Manufactured by PRS Bearings, the PXA090 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KA090XP0, SILVERTHIN SA090XP0. Key dimensional parameters include a 228.6 mm bore diameter, a 241.3 mm outer diameter, and a 6.35 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.

Technical Specifications

Direct InterchangeKAYDON KA090XP0, SILVERTHIN SA090XP0
Overview
Basic ModelPXA090
Weight0.2 kg
Dimensions
Bore Dia (d, mm)228.6 mm
Bore Dia (d, in)9 in
Outer Dia (D, mm)241.3 mm
Outer Dia (D, in)9.5 in
Width (B, mm)6.35 mm
Width (B, in)0.25 in
Load Ratings
Dynamic Load (Cr)5,391 kN
Static Load (Cor)12,500 kN
Dynamic Axial Load (Ca)9,074 kN
Static Axial Load (Coa)31,227 kN
Performance
Limit Speed (rpm)1,300 rpm
CAD Drawing and Dimensions for PXA090 PX 4-Point Contact Ball Bearing 6.35 mm 241.3 mm 228.6 mm PXA090

Frequently Asked Questions about PXA090 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 PXA090, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 228.6 mm bore. For the 241.3 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.
Yes, while the standard PRS Bearings PXA090 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.
The PXA090 is manufactured by PRS Bearings using premium-grade bearing steel that undergoes rigorous quality control processes. The company adheres to international standards including ISO 9001 and IATF 16949, ensuring consistent material purity and structural integrity across all production batches.
PRS Bearings provides the PXA090 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.