Hub Bearing Assemblies
Built in Quality You Can’t See!
PTC offers a full line of Hub Bearing Assemblies that provide well over 90% market coverage for both domestic and import applications.
Key Features & Benefits
Trailer Hub Assembly Kits
Trailer Electric Brake Assemblies
Trailer Brake Drums
Trailer Wheel Bearing Kits
Bearings & Seals
Greaseable Bearing Protectors
Dust Caps
Wheel Nuts
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FAQs
What is a hub bearing assembly?
A hub bearing assembly combines the wheel hub and bearing into one sealed unit that allows the wheel to rotate smoothly while supporting vehicle weight and maintaining alignment.
What are the signs of a failing hub bearing?
Common symptoms include grinding or humming noises while driving, ABS warning lights, uneven tire wear, or steering wheel vibration—especially during turns.
Can a worn hub bearing cause brake pulsation?
Yes. Excessive hub flange runout can transfer vibration to the rotor, causing brake pulsation that’s often misdiagnosed as a rotor issue.
What’s the difference between GEN 1, GEN 2, and GEN 3 hub bearings?
GEN 1 uses a press-fit bearing and hub, GEN 2 has a built-in flange on one side, and GEN 3 includes flanges on both sides with factory-set preload for easier installation.
Do PTC hub assemblies include ABS tone rings?
Yes. PTC hub assemblies are equipped with OE-style casted metal tone rings that ensure proper ABS function and eliminate signal distortion.
Do I need to torque a hub bearing during installation?
Yes. Proper torque is critical. Under- or over-tightening can cause premature bearing failure or ABS issues. Always follow OE torque specifications.
Are PTC hub assemblies tested for quality?
Absolutely. PTC hubs undergo dimensional, metallurgy, ABS sensor, and noise/vibration testing to ensure long-term reliability and OE-level performance.
