PX120UU - PX Sealed 4-Point Contact Ball Bearing

Manufactured by PRS Bearings, the PX120UU is a precision PX Sealed 4-Point Contact Ball Bearing. You may consider it as an interchangeable alternative and replacement for KAYDON JU120XP0, SILVERTHIN JSU120XP0. Key dimensional parameters include a 304.8 mm bore diameter, a 323.85 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.

Technical Specifications

Direct InterchangeKAYDON JU120XP0, SILVERTHIN JSU120XP0
Overview
Basic ModelPX120UU
Weight0.708 kg
Dimensions
Bore Dia (d, mm)304.8 mm
Bore Dia (d, in)12 in
Outer Dia (D, mm)323.85 mm
Outer Dia (D, in)12.75 in
Width (B, mm)12.7 mm
Width (B, in)0.5 in
Load Ratings
Dynamic Load (Cr)11,660 kN
Static Load (Cor)26,470 kN
Dynamic Axial Load (Ca)19.66 kN
Static Axial Load (Coa)66,190 kN
Performance
Limit Speed (rpm)160 rpm
CAD Drawing and Dimensions for PX120UU PX Sealed 4-Point Contact Ball Bearing 12.7 mm 323.85 mm 304.8 mm PX120UU

Frequently Asked Questions about PX120UU PX Sealed 4-Point Contact Ball Bearing

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

The PX120UU utilizes high-purity bearing steel treated with PRS Bearings's advanced thermal processes. This creates a tough core that effectively absorbs shock loads while maintaining a highly wear-resistant surface on the raceways.
Absolutely. The PRS Bearings PX120UU is a drop-in replacement for international models like KAYDON JU120XP0, SILVERTHIN JSU120XP0. It follows universal ISO dimensions, making it easy to upgrade your supply chain to PRS Bearings's high-quality standards.
Certainly. While the standard PX120UU is pre-filled with high-grade industrial lubricant, PRS Bearings can provide custom fills, including food-grade (NSF H1), high-temperature, or extreme-pressure greases tailored to your operational needs.
Yes. Through optimized internal geometry and precision honing, PRS Bearings minimizes the rolling friction of the PX120UU. This lowers operating temperatures and power consumption, particularly when running near its 160 RPM threshold.