CATERPILLAR 423-1990 Cup-Bearing 4231990

Caterpillar 423-1990 Cup Bearing – OEM-Grade Durability for Articulated Dump Trucks and Challengers

The Caterpillar 423-1990 Cup Bearing is a precision-engineered drivetrain component designed for optimal performance in heavy-duty articulated dump trucks and Challenger series machinery. Compatible with models including the 4PS-D250E II, 5KS-D300E II, 2XW-D350E II, 8PS-D400E II, APF-D400E II articulated dump trucks, as well as the 018-MT700, 812-MTC735, 813-MTC745, 814-MTC755, and 815-MTC765 Challenger tractors, this cup bearing ensures seamless rotational movement under extreme load conditions. Manufactured using high-grade metallurgy, the 423-1990 bearing offers superior resistance to wear, corrosion, and fatigue, extending equipment lifespan and minimizing downtime.

Technically, the 423-1990 cup bearing features precision-machined inner and outer diameters that guarantee a perfect fit within the drivetrain assembly, maintaining alignment and reducing vibration. Its robust construction supports high radial and axial loads typical in articulated dump truck operations, enhancing torque transmission efficiency and overall drivetrain reliability. The bearing’s advanced sealing technology prevents ingress of contaminants such as dust and moisture, crucial for maintaining performance in harsh mining and construction environments. OEM-grade quality standards ensure this part meets or exceeds Caterpillar’s stringent specifications, making it an indispensable component for maintaining peak equipment performance.

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