National LM12749 Axle Differential Bearing - Rear Right

Overview of National LM12749 Axle Differential Bearing

The National LM12749 axle differential bearing is engineered for precision and durability in Audi and Volkswagen vehicles. Designed specifically for models like the Golf and TT Quattro, this taper bearing cone ensures reliable driveline performance under demanding conditions.

• Brand: National
• Part Number: LM12749
• Category: Driveline and Axles > Bearings
• Part Type: Axle Differential Bearing (Taper Bearing Cone)
• Cone Bore Diameter: 0.8661 inches (21.9990 mm)
• Cone Length: 0.6550 inches (16.6370 mm)
• Cone Radius: 0.0500 inches (1.2700 mm)
• Compatible with Audi Golf and Volkswagen TT Quattro models

Technical Specifications and Features

This axle differential bearing cone features a precise cone bore diameter of 0.8661 inches (21.9990 mm), which is critical for proper fitment and smooth rotation within the differential assembly. The cone length measures 0.6550 inches (16.6370 mm), providing the necessary surface area for load distribution. Additionally, the cone radius of 0.0500 inches (1.2700 mm) supports optimal bearing contact and reduces wear over time.

Application and Compatibility

The National LM12749 bearing cone is compatible with select Audi and Volkswagen vehicles, specifically the Audi Golf and Volkswagen TT Quattro models. It is designed to replace worn or damaged axle differential bearings, restoring proper function to the driveline system.

• Addresses axle differential bearing wear and noise
• Resolves issues related to uneven bearing surface contact
• Prevents premature bearing failure due to improper fitment
• Improves driveline smoothness and reduces vibration
• Supports proper differential gear alignment and operation

Installation Notes and Tips

When installing the National LM12749 axle differential bearing, ensure the bearing cone is clean and free of debris. Proper lubrication of the bearing surfaces is essential to prevent premature wear. Verify the cone bore and length dimensions match the vehicle specifications to guarantee correct fitment. It is recommended to inspect related driveline components during installation for any signs of damage or wear.

Quality Assurance and Warranty

National manufactures the LM12749 axle differential bearing to meet strict quality standards for durability and performance. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects. This bearing cone is produced to provide consistent fitment and reliable operation in Audi Golf and Volkswagen TT Quattro driveline systems.