Timken SP550311 Wheel Bearing and Hub Assembly - Front

Timken SP550311 Wheel Bearing and Hub Assembly Overview

The Timken SP550311 wheel bearing and hub assembly is engineered for reliable performance on the Hummer H3. 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 engagement
• 6 wheel studs for stable wheel mounting
• 3 flange bolt holes for proper flange attachment
• Brake pilot diameter of 100.67 mm (3.963 inches) for accurate brake component alignment
• Hub pilot diameter of 99.94 mm (3.911 inches) ensuring precise hub centering
• Flange diameter of 178.70 mm (7.035 inches) with a flange offset of 50.20 mm (1.976 inches)
• Bolt circle diameter of 139.70 mm (5.500 inches) matching OEM specifications
• Designed as a driven hub assembly for the Hummer H3

Detailed Product Description

The Timken SP550311 is a wheel bearing and hub assembly specifically designed for the Hummer H3 driveline and axle system. Featuring a 33-spline driven design, this assembly provides a secure connection between the axle shaft and the wheel hub. The 6 wheel studs and 3 flange bolt holes ensure proper wheel mounting and flange attachment, maintaining vehicle stability and safety. The brake pilot diameter of 100.67 mm (3.963 inches) and hub pilot diameter of 99.94 mm (3.911 inches) allow for precise alignment of brake components and hub centering, which is critical for smooth braking performance and wheel rotation. The flange diameter and offset are engineered to match OEM dimensions, ensuring compatibility and proper fitment on the Hummer H3.

Compatible Vehicles and Applications

This Timken wheel bearing and hub assembly is compatible with the following vehicle:

• Hummer H3

It is designed to replace worn or damaged wheel bearing and hub assemblies in the driveline and axle system, restoring proper wheel function and driveline integrity.

Common Issues Addressed by This Assembly

• Eliminates wheel bearing noise caused by wear or damage
• Resolves wheel wobble or play due to hub assembly failure
• Restores proper brake rotor alignment and reduces brake pulsation
• Prevents uneven tire wear related to hub misalignment
• Ensures secure wheel mounting and driveline engagement

Installation Notes and Tips

• Verify vehicle compatibility with Hummer H3 before installation
• Use proper torque specifications for wheel studs and flange bolts
• Inspect axle shaft splines for wear before assembly
• Ensure brake components are properly aligned with the brake pilot diameter
• Follow manufacturer guidelines for hub bearing lubrication and installation procedures

Quality Assurance and Warranty

Timken manufactures the SP550311 wheel bearing and hub assembly to meet strict quality standards, ensuring durability and reliable performance. This part is backed by Timken's warranty coverage, which protects against defects in materials and workmanship under normal use. Refer to Timken's official warranty documentation for specific terms and conditions.