National A-22 Wheel Bearing and Race Set - Front Inner or Front Outer

National A-22 Taper Bearing Set

National A-22 is a taper bearing and race set built with premium-grade steel and crowned raceways and rollers for even load distribution. It is a direct-fit front inner wheel bearing solution for select Dodge Ramcharger, W100, W150, and W200 applications from 1975-1979.

Key Features

• Part number: A-22
• Taper bearing cone and cup set for wheel bearing service
• Premium-grade steel construction
• Crowned raceways and rollers to promote even load distribution
• Includes spacer K-518780-R
• Taper bearing cone: JLM506848E2
• Taper bearing cup: JLM5068102
• Front inner position fitment for select Dodge trucks and SUVs

Detailed Description

National A-22 is a wheel bearing and race set engineered for front inner service where a tapered cone-and-cup design is required. The bearing dimensions include a 2.1654-inch cone bore, 3.5433-inch cup bore, 1.0236-inch cone length, and 0.7283-inch cup length, supporting precise axle and hub fitment. The crowned roller and raceway profile helps distribute load more evenly across the bearing surfaces, which is important in demanding driveline and axle applications. This A-22 bearing set cross-references Timken SET25 for the same application.

Compatible With 1975-1979 Dodge Ramcharger, front inner; 1975-1977 Dodge W100, front inner; 1977-1979 Dodge W150, front inner; and 1975-1979 Dodge W200, front inner. It is also noted for Dodge W200 applications with the Spicer 44F-BJ axle. For buyers searching for a Dodge Ramcharger front inner wheel bearing set or a Dodge W200 taper bearing and race set, National A-22 provides the specified cone and cup combination.

Common Repair Uses

• Front wheel bearing noise from worn rollers or race surfaces
• Excessive play at the front inner hub bearing
• Service replacement for damaged cone and cup components
• Restoration of proper wheel end support on older Dodge 4x4 applications
• Correction of rough rotation or bearing wear during axle service

Installation Notes

Verify cone and cup numbers before installation and confirm axle and hub dimensions against the original parts. Clean the bearing seats thoroughly, inspect the spindle and hub surfaces for scoring, and pack the bearing with the correct wheel bearing grease before assembly. Because this is a front inner taper bearing set, proper preload and adjustment are important for long-term service life.

Quality Assurance

National manufactures this taper bearing set with premium-grade steel and crowned raceways and rollers to support consistent load distribution in wheel end service. The A-22 is built to the listed dimensional specifications for accurate replacement on the confirmed Dodge Ramcharger, W100, W150, and W200 applications.