Timken HA590049 Wheel Bearing and Hub Assembly - Front

Timken Wheel Bearing and Hub Assembly Overview

The Timken HA590049 wheel bearing and hub assembly is engineered for precise fitment on Cadillac STS models. Designed to meet exact OEM specifications, this driven hub assembly ensures reliable performance and durability for your vehicle's driveline system.

• 30 spline quantity for secure axle engagement
• 3 flange bolt holes for stable mounting
• 5 wheel studs for proper wheel attachment
• Wheel pilot diameter of 2.760 inches (70.10 mm) for accurate wheel alignment
• Brake pilot diameter of 2.780 inches (70.60 mm) to support brake component fitment
• Hub pilot diameter of 3.599 inches (91.42 mm) for precise hub positioning
• Flange offset of 1.656 inches (42.06 mm) to maintain correct wheel offset
• Flange diameter of 5.728 inches (145.50 mm) and bolt circle diameter of 4.528 inches (115.00 mm) for compatibility with factory mounting points

Detailed Product Description

The Timken HA590049 wheel bearing and hub assembly is specifically designed for the Cadillac STS, providing a driven hub solution that integrates seamlessly with the vehicle's driveline and axle system. The assembly features a 30-spline axle interface, ensuring a secure connection to the drivetrain. Its 3 flange bolt holes and 5 wheel studs correspond to the factory specifications, facilitating straightforward installation and reliable wheel attachment.

Critical dimensions such as the wheel pilot diameter (2.760 inches or 70.10 mm) and brake pilot diameter (2.780 inches or 70.60 mm) ensure proper alignment of wheels and brake components, reducing vibration and enhancing safety. The hub pilot diameter of 3.599 inches (91.42 mm) centers the hub accurately on the axle, while the flange offset and diameter maintain the correct wheel positioning relative to the suspension and body.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Cadillac STS
• Eliminates wheel vibration caused by bearing wear or hub misalignment
• Resolves noise issues such as humming or grinding from the front driveline
• Restores proper wheel alignment and brake component fitment
• Addresses wheel stud or flange bolt hole damage affecting wheel security

Installation Notes and Tips

• Verify compatibility with Cadillac STS model year before installation
• Ensure proper torque specifications for flange bolts and wheel studs to manufacturer standards
• Inspect axle splines and mating surfaces for wear or damage prior to assembly
• Use appropriate tools to avoid damaging the bearing or hub during installation
• Check wheel pilot and brake pilot diameters for correct fitment of wheels and brake rotors

Quality Assurance and Warranty

Timken wheel bearing and hub assemblies are manufactured to meet stringent quality standards, ensuring durability and performance under normal operating conditions. The HA590049 part number is backed by Timken's limited warranty against defects in materials and workmanship. For specific warranty details, refer to Timken's official documentation or contact authorized service providers.