National 368A Axle Differential Bearing

Overview of National 368A Axle Differential Bearing

The National 368A axle differential bearing is engineered for precision and durability in driveline applications. Designed as a taper bearing cone, it supports smooth rotation and load distribution in axle differentials for select Bentley, Chevrolet, Ferrari, Ford, Jeep, and Rolls-Royce models.

• Cone bore diameter: 2.0000 inches (50.8 mm)
• Cone length: 0.8750 inches (22.225 mm)
• Cone radius: 0.1400 inches (3.556 mm)
• Part type: Taper bearing cone for axle differentials
• Compatible with luxury and heavy-duty vehicles

Technical Specifications and Attributes

The National 368A bearing features a cone bore of 2.0000 inches (50.8 mm), providing a precise fit for axle shafts requiring this dimension. Its cone length measures 0.8750 inches (22.225 mm), ensuring proper engagement within the differential assembly. The cone radius of 0.1400 inches (3.556 mm) is designed to optimize load distribution and reduce wear during operation. This taper bearing cone is manufactured to meet stringent tolerances, supporting reliable driveline performance in demanding conditions.

Compatible Vehicle Makes and Models

This axle differential bearing is compatible with a range of high-end and utility vehicles, including Bentley models such as the Azure, Brooklands, Continental, Corniche series, Eight, Flying Spur, Mulsanne, Silver Dawn, Silver Shadow II, Silver Spirit, Silver Spur, and Silver Wraith II. It also fits Chevrolet trucks like the F-250, F-350, and Suburban K20 series, Ferrari models including the Mondial 3.2, Mondial t, Testarossa, and Turbo R, as well as Ford J20 trucks and Jeep Touring Limousine. Rolls-Royce applications include the Corniche II, Corniche IV, and Corniche S.

Common Applications and Problem Resolution

• Supports axle differential rotation and load bearing
• Reduces wear and friction in differential assemblies
• Addresses bearing noise and vibration issues
• Prevents premature axle shaft wear
• Maintains proper differential gear alignment

Installation Notes and Tips

When installing the National 368A axle differential bearing, ensure the cone bore and length dimensions match the axle shaft specifications precisely. Proper lubrication of the bearing surfaces is critical to prevent premature wear. Use appropriate tools to avoid damage to the cone radius area during installation. Verify fitment compatibility with the specific vehicle make and model before installation to ensure optimal performance.

Quality Assurance and Warranty

National bearings are manufactured to meet industry standards for durability and precision. The 368A axle differential bearing undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.