National 41125 Steering Knuckle Bearing - Front

Steering Knuckle Bearing Overview

National 41125 is a taper bearing cone built for steering knuckle applications that require controlled load handling and consistent race contact. It uses premium-grade steel with crowned raceways and rollers to promote even load distribution.

Key Features

• Premium-grade steel construction for bearing durability.
• Crowned raceways and rollers help distribute load evenly.
• Taper bearing cone design for steering knuckle service.
• Part number 41125 for accurate catalog matching.

Product Details

This National steering knuckle bearing is a taper bearing cone, part number 41125, engineered around a 1.1250-inch cone bore and a 0.9550-inch cone length. The cone radius measures 0.1900 inch, and the metric dimensions are 28.5750 mm bore and 24.2570 mm length. In steering and suspension service, the bearing geometry matters because it supports load transfer through the raceway and roller contact surfaces. National 41125 is a practical replacement choice when the original bearing cone shows wear, roughness, or loss of smooth rotation. This part cross-references Carlson 41125 for the same application.

Common Uses

• Noise from a worn steering knuckle bearing.
• Rough or uneven wheel-end rotation.
• Excess play caused by bearing wear.
• Load distribution issues at the bearing surface.

Installation Notes

Verify cone bore, cone length, and bearing style before installation. Clean and inspect the mating components for scoring, pitting, or contamination, and replace any damaged related parts as needed. Proper bearing setup and lubrication are important for service life and smooth operation.

Quality Assurance

National manufactures this taper bearing cone with premium-grade steel and crowned raceways and rollers to support even load distribution in steering knuckle service.