National LM29749 Manual Transmission Differential Bearing

Overview of National LM29749 Manual Transmission Differential Bearing

The National LM29749 is a precision-engineered manual transmission differential bearing designed for reliable performance in a variety of vehicle makes and models. This taper bearing cone is compatible with manual transmissions in vehicles such as Audi A4, BMW 325iX, Ford Mustang, Volkswagen Golf, and Land Rover Freelander.

• Part Number: LM29749
• Brand: National
• Type: Manual Transmission Differential Bearing (Taper Bearing Cone)
• Cone Bore Diameter: 1.5000 inches (38.1 mm)
• Cone Length: 0.7200 inches (18.288 mm)
• Cone Radius: 0.0930 inches (2.362 mm)
• Compatible with multiple makes including Audi, BMW, Ford, Volkswagen, and Land Rover

Technical Specifications and Attributes

The LM29749 bearing cone features a cone bore diameter of 1.5000 inches (38.1 mm), ensuring a precise fit within the differential assembly. Its cone length measures 0.7200 inches (18.288 mm), providing the necessary surface area for load distribution. The cone radius of 0.0930 inches (2.362 mm) supports smooth rotation and reduces wear over time. These dimensions are critical for maintaining proper alignment and function within manual transmission differentials across various vehicle models.

Applications and Vehicle Compatibility

This National manual transmission differential bearing is compatible with a wide range of vehicles, including but not limited to Audi A3, A4, and A5 Quattro models, BMW 325iX, Ford Mustang, Volkswagen Golf and GTI, Land Rover Freelander, and several others. It is designed to meet the demands of manual transmission systems in both European and American vehicles, making it suitable for maintenance and repair of transmissions in these models.

• Compatible with manual transmission differentials in Audi, BMW, Ford, Volkswagen, Land Rover, and more
• Suitable for models such as Audi A4, BMW 325iX, Ford Mustang, Volkswagen Golf, and Land Rover Freelander
• Ideal for vehicles requiring a taper bearing cone with precise bore and length dimensions

Common Issues Addressed by LM29749 Bearing Cone

• Excessive play or looseness in the manual transmission differential
• Noise or rough operation caused by worn or damaged differential bearings
• Uneven wear on transmission gears due to improper bearing fit
• Vibration or harsh shifting linked to bearing failure
• Preventing premature transmission component wear by maintaining proper bearing support

Installation Notes and Tips

When installing the National LM29749 bearing cone, ensure the differential housing and mating surfaces are clean and free of debris. Proper lubrication is essential to prevent premature wear and overheating. Use appropriate tools to press the bearing cone into place without causing damage to the cone bore or race. Verify fitment against vehicle specifications, especially for models like Audi A4, BMW 325iX, and Volkswagen Golf, to ensure compatibility.

Quality Assurance and Warranty

National manufactures the LM29749 bearing cone to meet industry standards for durability and performance. While specific warranty details may vary, National products typically come with a limited warranty against defects in materials and workmanship. This ensures that the LM29749 bearing cone provides reliable service when installed according to manufacturer guidelines.