National 32306 Differential Pinion Bearing - Front, Rear Inner or Rear Outer

National 32306 Differential Pinion Bearing Overview

The National 32306 differential pinion bearing is engineered for reliable driveline performance in select Honda, INFINITI, Nissan, Saab, and Subaru vehicles. Designed as a taper bearing assembly, this part ensures smooth differential operation and durability under demanding conditions.

• Bore diameter: 1.1811 inches (30 mm)
• Cone length: 1.063 inches (27 mm)
• Cup length: 0.9055 inches (23 mm)
• Outside diameter: 2.8346 inches (72 mm)
• Width: 1.1319 inches (28.75 mm)
• Iso metric design with TS type taper bearing
• Standout dimension: 0.2264 inches (5.75 mm)

Technical Details and Specifications

The National 32306 bearing features an iso metric design with a TS type taper bearing assembly, optimized for differential pinion applications. The cone and cup radii are both 0.0787 inches (2 mm), providing precise fitment and load distribution. With a bore size of 1.1811 inches (30 mm) and an outside diameter of 2.8346 inches (72 mm), this bearing is built to meet the exacting standards required for driveline components. The cone length of 1.063 inches (27 mm) and cup length of 0.9055 inches (23 mm) contribute to its robust structural integrity, ensuring consistent performance in vehicles such as the Honda Civic, Subaru WRX, and Nissan GT-R.

Compatible Vehicles and Applications

This differential pinion bearing is compatible with a range of models including Honda Civic, Subaru WRX and WRX STI, Subaru Crosstrek and Forester, Nissan GT-R, INFINITI Q50 and Q60, Saab 9-2X, and others. The part number 32306 is specifically designed to fit these vehicles’ driveline and axle assemblies, providing a direct replacement for worn or damaged bearings.

• Reduces differential noise and vibration
• Prevents premature wear of pinion gears
• Maintains proper gear alignment and backlash
• Improves driveline efficiency and smoothness
• Addresses issues related to bearing failure and axle play

Installation Notes and Tips

Proper installation of the National 32306 differential pinion bearing requires careful attention to torque specifications and bearing preload settings. It is recommended to use appropriate tools for bearing removal and installation to avoid damage. Clean all mating surfaces thoroughly and inspect the differential housing for wear or damage before assembly. Applying the correct lubricant and verifying fitment with the vehicle’s service manual will ensure optimal performance and longevity.

Quality Assurance and Warranty

National bearings are manufactured to meet industry standards for durability and precision. The 32306 differential pinion bearing undergoes rigorous quality control to ensure consistent dimensions and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects, providing confidence in the part’s reliability for Honda, INFINITI, Nissan, Saab, and Subaru driveline repairs.