PXF300 - PX 4-Point Contact Ball Bearing

Manufactured by PRS Bearings, the PXF300 is a precision PX 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON KF300XP0, SILVERTHIN SF300XP0. Key dimensional parameters include a 762 mm bore diameter, a 800.1 mm outer diameter, and a 19.05 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 KF300XP0, SILVERTHIN SF300XP0
Overview
Basic ModelPXF300
Weight5.897 kg
Dimensions
Bore Dia (d, mm)762 mm
Bore Dia (d, in)30 in
Outer Dia (D, mm)800.1 mm
Outer Dia (D, in)31.5 in
Width (B, mm)19.05 mm
Width (B, in)0.75 in
Load Ratings
Dynamic Load (Cr)58,116 kN
Static Load (Cor)154,353 kN
Dynamic Axial Load (Ca)105,512 kN
Static Axial Load (Coa)385,928 kN
Performance
Limit Speed (rpm)390 rpm
CAD Drawing and Dimensions for PXF300 PX 4-Point Contact Ball Bearing 19.05 mm 800.1 mm 762 mm PXF300

Frequently Asked Questions about PXF300 PX 4-Point Contact Ball Bearing

Find key technical answers regarding dimensions, specifications, and replacement options for this model.

Thanks to its robust 58,116 dynamic load capacity, the PRS Bearings PXF300 is highly sought after in mining, metallurgy, agricultural machinery, and heavy industrial gearboxes where operational reliability is paramount.
Yes, PRS Bearings strictly adheres to global environmental directives. The bearing steel and industrial lubricants used in the PXF300 are formulated to meet international safety standards, ensuring eco-friendly equipment integration.
The standard PXF300 from PRS Bearings is heat-stabilized for temperatures up to 120°C. For extreme heat applications, PRS Bearings offers custom S1 or S2 stabilization treatments to ensure the component maintains its 762 mm x 800.1 mm dimensions without warping.
Yes. As part of our B2B commitment, if a PXF300 experiences unexpected issues in the field, PRS Bearings engineers can perform detailed metallurgical and wear analysis to identify root causes and optimize your future setups.