National 28584 Axle Differential Bearing - Rear, Rear Inner or Rear Right

National 28584 Axle Differential Bearing

National 28584 is a taper bearing cone for axle differential service, built with premium-grade steel and crowned raceways and rollers to promote even load distribution. It is a direct-fit option for select Rolls-Royce Phantom and Bentley Continental rear right applications that use the Rolls-Royce axle setup.

Key Features

• Taper bearing cone for driveline and axle bearing service
• Premium-grade steel construction
• Crowned raceways and rollers for more even load distribution
• Cone bore: 2.0625 in. / 52.3880 mm
• Cone length: 1.0000 in. / 25.4000 mm
• Cone radius: 0.1400 in. / 3.5560 mm
• Part number: 28584

Detailed Description

This National 28584 taper bearing cone is specified for rear right axle differential use in 1959-1970 Rolls-Royce Phantom and 1959-1965 Bentley Continental models with the Rolls-Royce axle. The crowned raceway and roller profile is used to help distribute load more evenly across the bearing surface, while the premium steel construction supports consistent operation in demanding driveline environments. If you are sourcing a National 28584 bearing for a Rolls-Royce Phantom or Bentley Continental rear right axle application, this part provides the dimensional and application match needed for service work.

This part cross-references SKF BR28584 for the same application.

What It Helps Address

• Rear axle bearing noise from worn rollers or raceways
• Excessive play in the differential bearing area
• Rough rotation caused by bearing surface wear
• Service replacement needs on Rolls-Royce Phantom rear right axle assemblies
• Service replacement needs on Bentley Continental rear right axle assemblies

Installation Notes and Tips

Verify cone bore, length, and radius against the removed bearing before installation. Clean and inspect the axle and differential surfaces for scoring, pitting, or contamination, and replace any damaged mating components as needed. Proper bearing preload and lubrication are critical for long-term performance, so follow the vehicle service procedure for the Rolls-Royce axle setup.

Quality Assurance

National manufactures this taper bearing cone with premium-grade steel and crowned raceway geometry to support even load distribution in axle differential service. Part number 28584 is built to the listed dimensions and application coverage for select Rolls-Royce Phantom and Bentley Continental rear right fitments.