Timken SP550313 Wheel Bearing and Hub Assembly - Front

Timken SP550313 Wheel Bearing and Hub Assembly Overview

The Timken SP550313 wheel bearing and hub assembly is engineered for reliable performance on Hummer H3 and H3T models. Designed to meet precise specifications, this driven hub assembly ensures proper fitment and durability for your vehicle's driveline system.

• 33 spline quantity for secure drivetrain connection
• 3 flange bolt holes for stable mounting
• 6 wheel studs to accommodate standard wheel configurations
• Wheel pilot diameter of 100.00 mm (3.937 inches) for accurate wheel alignment
• Brake pilot diameter of 100.66 mm (3.963 inches) ensuring proper brake rotor fit
• Hub pilot diameter of 99.34 mm (3.911 inches) for precise hub centering
• Flange diameter measuring 178.53 mm (7.029 inches) for compatibility with OEM components
• Bolt circle diameter of 139.70 mm (5.500 inches) matching factory specifications
• Flange offset of 49.77 mm (1.959 inches) to maintain correct wheel positioning
• Designed as a driven hub assembly for the Hummer H3 and H3T driveline

Detailed Product Description

The Timken SP550313 wheel bearing and hub assembly is specifically designed for the Hummer H3 and H3T, providing a direct replacement that meets factory standards. This assembly features a 33-spline driven design, ensuring compatibility with the vehicle’s axle shaft. The 3-bolt flange and 6 wheel studs provide a secure mounting platform for wheels and brake components. Precise pilot diameters for the wheel, brake, and hub ensure proper centering and alignment, which is critical for maintaining vehicle stability and brake performance. The flange diameter and bolt circle diameter conform to OEM specifications, facilitating straightforward installation without modifications.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Hummer H3 and H3T
• Eliminates wheel vibration caused by bearing wear
• Resolves noise issues such as humming or grinding from the front driveline
• Corrects wheel alignment problems related to hub pilot wear
• Restores proper brake rotor fitment and reduces brake pulsation

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before beginning installation
• Verify spline count and bolt pattern match the existing assembly
• Clean mounting surfaces to remove rust and debris for proper fit
• Torque flange bolts and wheel studs to manufacturer specifications
• Check wheel pilot and brake pilot diameters for proper rotor and wheel alignment

Quality Assurance and Warranty

Timken manufactures the SP550313 wheel bearing and hub assembly to meet stringent quality standards. Each unit undergoes rigorous testing to ensure durability and performance under normal operating conditions. While specific warranty details may vary, Timken products typically include a limited warranty against defects in materials and workmanship. Consult Timken or your parts provider for exact warranty terms applicable to this assembly.