National 493 Axle Differential Bearing Race - Rear Left

Overview of National 493 Axle Differential Bearing Race

The National 493 axle differential bearing race is engineered for precise fitment and reliable performance in driveline systems. Designed as a taper bearing cup, this component supports smooth rotation and durability in axle differentials, compatible with various vehicle makes and models requiring a 5.3750 inch cup bore.

• Taper bearing cup design for axle differential applications
• Cup bore diameter: 5.3750 inches (136.5250 mm)
• Cup length: 0.8750 inches (22.2250 mm)
• Cup radius: 0.1250 inches (3.1750 mm)
• Part number 493 ensures exact replacement fit

Technical Specifications and Features

The National 493 bearing race features a cup bore measuring 5.3750 inches (136.5250 mm), providing a precise seating surface for the tapered bearing cone. The cup length of 0.8750 inches (22.2250 mm) and a cup radius of 0.1250 inches (3.1750 mm) are critical dimensions that maintain proper bearing alignment and load distribution within the axle differential assembly. This part is manufactured to meet OEM standards, ensuring compatibility with vehicles that require these exact measurements.

Applications and Vehicle Compatibility

This axle differential bearing race is compatible with a range of vehicles that utilize a 5.3750 inch cup bore in their driveline systems. Commonly found in certain Ford, Chevrolet, and Dodge models, the National 493 bearing race is suitable for those seeking a direct replacement part for axle differential maintenance or repair. Always verify fitment with your vehicle’s specifications before installation.

• Resolves bearing wear and noise issues in axle differentials
• Addresses improper bearing seating and alignment problems
• Prevents premature bearing failure due to damaged races
• Eliminates vibration and rough axle operation
• Supports smooth differential rotation and load handling

Installation Notes and Tips

Proper installation of the National 493 axle differential bearing race requires careful cleaning of the axle housing bore and inspection for damage. Use appropriate tools to press the bearing cup evenly into place without distortion. Ensure the cup bore and bearing cone dimensions match precisely to avoid premature wear. It is recommended to replace bearings and races as a set to maintain optimal driveline performance.

Quality Assurance and Warranty

National manufactures the 493 axle differential bearing race to meet stringent quality standards, ensuring durability and consistent performance. While specific warranty details may vary, National parts typically come with a limited warranty against defects in material and workmanship. Consult product documentation or your parts supplier for exact warranty terms.