National 511041 Wheel Bearing - Front or Rear

National 511041 Wheel Bearing Overview

The National 511041 wheel bearing is engineered for reliable performance in select Mercedes-Benz models. Designed with a double row angular contact design, this wheel bearing supports smooth wheel rotation and durability for vehicles like the GL320, ML350, and R500.

• Double row angular contact design for enhanced load capacity
• Bore diameter of 2.126 inches (54 mm) for precise fitment
• Outer race width of 1.969 inches (50 mm) ensuring stability
• Outside diameter of 3.543 inches (90 mm) compatible with specified Mercedes-Benz models
• Part type: E-3, series RWDB, Gen1 footnote

Technical Specifications and Design Details

The National 511041 wheel bearing features a double row angular contact design, which provides improved axial and radial load handling compared to single row bearings. With a bore size of 54 mm (2.126 inches) and an outer race width of 50 mm (1.969 inches), this bearing is engineered to meet the precise requirements of Mercedes-Benz driveline systems. The outside diameter measures 90 mm (3.543 inches), ensuring compatibility with wheel hubs on models such as the GL350, ML500, and R63 AMG. This bearing is part of the RWDB series and classified as type E-3, designed to maintain optimal wheel alignment and reduce friction under demanding driving conditions.

Compatible Mercedes-Benz Models

This National wheel bearing 511041 is compatible with a range of Mercedes-Benz SUVs and performance models, including:

• GL320, GL350, GL450, GL550
• ML320, ML350, ML450, ML500, ML550, ML63 AMG
• R320, R350, R500, R63 AMG

Common Applications and Problem Resolution

This wheel bearing is used to replace worn or damaged bearings in the driveline and axle assembly, addressing issues such as:

• Excessive wheel noise or humming during driving
• Vibration or wobbling in the wheel assembly
• Uneven tire wear caused by bearing play
• Reduced steering responsiveness or stability
• Potential wheel lockup or failure due to bearing wear

Installation Notes and Tips

Proper installation of the National 511041 wheel bearing is critical for vehicle safety and performance. It is recommended to:

• Use appropriate tools to avoid damage to the bearing or hub
• Clean and inspect the hub assembly before installation
• Apply manufacturer-recommended torque specifications to fasteners
• Check for proper seating and alignment after installation
• Replace seals and related components as needed to prevent contamination

Quality Assurance and Warranty

National wheel bearings are manufactured to meet OEM standards for durability and performance. The 511041 bearing undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty terms may vary, National typically offers coverage against defects in materials and workmanship, providing confidence in the product's reliability for Mercedes-Benz GL and ML series vehicles.