National 39520 Wheel Bearing Race - Front Inner, Rear Inner or Rear Outer

National 39520 Wheel Bearing Race for Chevrolet P30

The National 39520 wheel bearing race is engineered to meet the specific requirements of Chevrolet P30 driveline systems. Designed as a taper bearing cup, this component ensures precise fitment and reliable performance in wheel bearing assemblies.

• Cup Bore Diameter: 4.4375 inches (112.7130 mm)
• Cup Length: 0.9375 inches (23.8130 mm)
• Cup Radius: 0.1250 inches (3.1750 mm)
• Part Type: Taper bearing cup
• Compatible with Chevrolet P30 models

Detailed Product Description

The National 39520 wheel bearing race is a critical component designed for the Chevrolet P30, providing a durable and precise seating surface for the wheel bearing assembly. The taper bearing cup features a cup bore diameter of 4.4375 inches (112.7130 mm), ensuring a secure fit within the hub assembly. With a cup length of 0.9375 inches (23.8130 mm) and a cup radius of 0.1250 inches (3.1750 mm), this part maintains the correct alignment and load distribution necessary for optimal driveline performance.

Applications and Problem Solving

This wheel bearing race is specifically compatible with Chevrolet P30 vehicles and is used to address common driveline issues such as:

• Excessive wheel bearing play or looseness
• Uneven bearing wear due to improper seating
• Noise or vibration originating from the wheel hub
• Premature bearing failure caused by damaged races
• Maintaining proper bearing preload and alignment

Installation Notes and Tips

When installing the National 39520 wheel bearing race, ensure the hub and spindle surfaces are clean and free of debris. Use a proper bearing race driver tool to press the cup evenly into the hub bore to avoid distortion. Verify the cup bore dimensions match the hub specifications for the Chevrolet P30 to ensure correct fitment. Proper lubrication of the bearing surfaces during assembly is recommended to extend service life.

Quality Assurance and Warranty

National manufactures the 39520 wheel bearing race to meet industry standards for durability and precision. This part 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 support professional repair and maintenance needs.