BCA NBA38 Axle Differential Bearing

Overview of BCA NBA38 Axle Differential Bearing

The BCA NBA38 axle differential bearing is engineered for reliable driveline performance in a variety of heavy-duty vehicles. Designed to meet precise specifications, this bearing supports smooth axle rotation and helps maintain differential integrity in trucks and SUVs.

• Cone bore diameter: 2.000 inches
• Cone width: 0.875 inches
• Cup outside diameter: 3.250 inches
• Cup width: 0.650 inches
• Part number: NBA38

Technical Specifications and Design Details

This axle differential bearing features a cone bore of 2.000 inches and a cone width of 0.875 inches, ensuring a precise fit within the axle assembly. The cup outside diameter measures 3.250 inches with a cup width of 0.650 inches, providing the necessary surface area for optimal load distribution. These dimensions are critical for maintaining proper bearing preload and minimizing wear under heavy load conditions commonly experienced in trucks and commercial vehicles.

Compatible Vehicles and Fitment

The BCA NBA38 bearing is compatible with a wide range of makes and models, including Cadillac, Chevrolet, Dodge, Ford, GMC, Plymouth, and Ram. It fits various models such as the Chevrolet Silverado 2500 and 3500, Ford F-150, F-250, and F-350 Super Duty, Ram 1500, 2500, and 3500, as well as GMC Sierra 2500 HD and 3500 HD. This bearing is suitable for applications in vehicles like the Ford Bronco, E-250 Econoline, and multiple Suburban and Express chassis models.

Common Applications and Problem Resolution

• Replaces worn or damaged axle differential bearings
• Addresses axle noise and vibration issues
• Prevents premature bearing failure due to improper fit
• Restores smooth differential operation in heavy-duty trucks
• Supports reliable driveline performance under load

Installation Notes and Tips

Proper installation of the NBA38 bearing requires careful measurement of the cone bore and cup dimensions to ensure correct seating. Use appropriate tools to press the bearing into place without damaging the cup or cone surfaces. Verify bearing preload and adjust as necessary according to vehicle service manual specifications. It is recommended to inspect related components such as seals and races during installation to ensure overall driveline integrity.

Quality Assurance and Warranty

BCA manufactures the NBA38 axle differential bearing to meet industry standards for durability and performance. While specific warranty details should be confirmed at the point of purchase, BCA products typically come with a limited warranty covering defects in materials and workmanship. This bearing is designed to provide consistent service life when installed and maintained properly.