National RW-509-FR Wheel Bearing - Rear

National RW-509-FR Rear Wheel Bearing

The National RW-509-FR wheel bearing is a rear driveline component built for select Cadillac, Lincoln, and Buick applications. It is designed to meet or exceed OE quality and is manufactured to exacting standards for consistent performance and extended bearing life.

Key Features

• Single row radial wheel bearing design
• Rear wheel bearing application for driveline and axle service
• 1.625 in. bore / 41.275 mm bore
• 3.268 in. outside diameter / 83.000 mm outside diameter
• 1.404 in. overall width / 35.651 mm overall width
• National RWS series, Type F-2
• OE-style replacement for service on classic rear-wheel applications

Detailed Description

National RW-509-FR is a rear wheel bearing engineered for precise fitment in older Cadillac, Lincoln, and Buick vehicles. The bearing uses a single row radial design with a 1.625-inch bore, 3.268-inch outside diameter, and 1.404-inch width, helping support smooth wheel rotation and stable rear axle operation. This part number, RW-509-FR, is commonly referenced for rear service on 1956-1969 Cadillac Eldorado, DeVille, Fleetwood, and Commercial Chassis models, 1962-1969 Lincoln Continental, and 1956-1958 Buick Century, Roadmaster, and 1959-1962 Buick LeSabre.

This part cross-references Timken RW509FR and PERFECTION 900033 for the same application.

What It Helps Address

• Rear wheel noise caused by worn bearing surfaces
• Excessive wheel play or looseness at the hub
• Rough rotation from bearing wear or fatigue
• Service replacement for aging rear axle bearing assemblies
• Fitment-specific repair needs on Cadillac DeVille, Lincoln Continental, and Buick rear applications

Installation Notes and Tips

Confirm bore, outside diameter, and width before installation to match the hub and axle assembly. Clean and inspect the mating surfaces, seals, and related components during service. Proper bearing seating and correct lubrication are important for long-term operation. Verify rear-position fitment against the vehicle application before assembly.

Quality Assurance

National manufactures this bearing to meet or exceed OE quality standards, with production controls aimed at consistent dimensions and durable service life. The RW-509-FR is built for dependable rear wheel bearing replacement in the listed Cadillac, Lincoln, and Buick applications.