Wheel Hub Bearings
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Precision-Made for Maximum Steering Control and Safety
From cruising a country road to navigating daily commutes, your vehicle’s steering performance is only as strong as its components. One of the most critical—and often overlooked—parts is the wheel hub assembly. At Mechanical Power, we supply premium-quality wheel hub bearing assemblies built to deliver superior safety, precision handling, and long-lasting performance under extreme conditions.
What Is a Wheel Hub Assembly?
A wheel hub assembly—also called a hub and bearing assembly or wheel hub unit—is a preassembled component that connects your wheel to the vehicle. It consists of precision bearings, seals, and sometimes integrated sensors. This compact, rugged part supports the wheel’s rotation and keeps it securely attached to your vehicle while enabling smooth steering and effective braking.
Positioned between the drive axle and the brake components, the hub is mounted to the steering knuckle and connects to the wheel via studs or bolts. While older vehicles used serviceable bearings, nearly all late-model vehicles rely on bolt-on hub assemblies for improved performance and safety.
Why Wheel Hub Assemblies Matter
A functioning wheel hub bearing is essential for your car’s steering system and overall drivability. It allows the wheels to turn freely while maintaining firm contact with the road. Hub assemblies also support key safety systems like ABS (Anti-Lock Braking System) and TCS (Traction Control System) by housing critical wheel speed sensors. These sensors monitor how fast each wheel is rotating and help the vehicle respond in real time during emergency braking or slippery road conditions.
If the sensor in the hub fails, it can compromise both the ABS and TCS, leading to poor braking response or reduced traction control—especially dangerous in high-performance or inclement driving scenarios.
Signs of a Failing Wheel Hub Assembly
Like any wear item, hub bearings can degrade over time.
You may notice:
Unusual noises like humming, growling, squealing, or chirping around 30–45 mph.
Steering wheel vibrations or shaking during motion.
ABS warning light triggered by faulty sensor readings.
If ignored, a bad wheel hub can lead to dangerous wheel looseness or even detachment. We recommend replacing faulty assemblies immediately to prevent further damage or safety risks.
Explore Our High-Performance Hub Assemblies
Whether you’re building a track car, upgrading a street machine, or replacing a worn-out OE component, MPI’s 30 & 33 spline brake hub assemblies are built with automotive enthusiasts in mind.
These units are manufactured using high-quality materials like Black Zinc & Nickel Plate Finish, come with a passive ABS sensor, and are engineered to resist piston knock-back while minimizing brake tap. Designed for use on performance vehicles like Corvettes, Camaros, and Trans Ams, they deliver the perfect blend of strength, style, and reliability.