National 23100 Steering Knuckle Bearing - Front or Front Lower

National 23100 Steering Knuckle Bearing

National 23100 is a taper bearing cone for steering knuckle and front axle service where precise load support matters. It uses premium-grade steel with crowned raceways and rollers to promote even load distribution in demanding front-end applications.

Key Features

• Taper bearing cone for steering knuckle applications
• Premium-grade steel construction
• Crowned raceways and rollers for even load distribution
• Cone bore: 1.0000 in. / 25.4000 mm
• Cone length: 0.8450 in. / 21.4630 mm
• Cone radius: 0.0620 in. / 1.5750 mm
• Part number: 23100

Application Details

This National 23100 bearing cone is used in front lower and front steering-related axle positions across a wide range of heavy-duty trucks and 4x4 applications. It is listed for vehicles including Dodge W250 and W350, Chevrolet V3500, Ford F-350, GMC V3500, Chevrolet V30, Chevrolet K30, GMC K3500, Dodge W200 and W300, Ford F-250 and F-350, Chevrolet K20, Chevrolet K20 Suburban, Ford F-250 and F-350, and Chevrolet K10 Suburban in the confirmed configurations shown. This part cross-references SKF BR23100 for the same application.

What It Helps Address

• Front-end bearing wear in steering knuckle service
• Uneven roller loading in tapered bearing assemblies
• Excess play or looseness at the front axle bearing location
• Noise or roughness from a worn bearing cone
• Service replacement for confirmed 4x4 and heavy-duty truck fitments

Installation Notes

Verify cone bore, length, and radius before installation, and match the axle and position notes exactly to the vehicle application. For fitment, use the confirmed listing for your truck or 4x4 configuration; examples include Fits 1981-1993 Dodge W250, Front Lower, Fits 1985-1991 Ford F-350, Front Lower, and Fits 1975-1977 Chevrolet K20, Front. The part number 23100 should be matched to the existing bearing specification during service.

Quality Assurance

National manufactures this taper bearing cone with premium-grade steel and crowned raceways and rollers to support consistent load distribution in service. National 23100 is built for steering and front axle bearing applications where dimensional accuracy and material quality are important.