The Herrin-Gear INFINITI parts team has all the parts you need to keep your ride looking and running great. Wheel hubs and bearings allow your wheels to spin freely while supporting your vehicle's weight. Your QX55 or Q50 requires these components functioning correctly for controlled handling during acceleration, braking, and cornering. Failed hubs or bearings create dangerous driving conditions that deteriorate rapidly.

Understanding How Wheel Hubs and Bearings Work

The wheel hub bolts to your vehicle's steering knuckle or axle housing and provides the mounting point for your wheel. Bearings positioned between the hub and spindle reduce friction during wheel rotation. These bearings must handle vertical loads from vehicle weight plus horizontal forces during turns and braking. Most modern luxury vehicles use sealed hub bearing assemblies that combine both components into one maintenance-free unit. The assembly maintains precise tolerances to prevent wobble or excessive play. Internal seals keep lubricant inside while excluding water and contaminants. Genuine INFINITI hub assemblies are manufactured to exact specifications with premium bearing grades that ensure quiet operation and extended service life.

What Causes Hub and Bearing Deterioration

Continuous rotation under heavy loads gradually wears bearing surfaces despite proper lubrication. Seal damage from road debris or age allows water and dirt to enter, contaminating lubricant and causing rust. Sharp impacts from potholes create indentations on bearing races that produce grinding or humming noises. Overloading your vehicle or sustained high-speed driving increases bearing stress. Aftermarket hub assemblies commonly use inferior bearing grades that fail prematurely under normal operating conditions. Malfunctioning suspension components allow excessive wheel movement that overloads bearings and accelerates wear.

Recognizing When Hub Bearing Replacement Is Due

Humming or growling sounds that vary with vehicle speed indicate bearing wear. The noise often increases during turns as additional load shifts to the affected bearing. Excessive looseness when rocking the tire by hand confirms bearing failure. Vibration through the steering wheel or seat suggests uneven bearing wear. Uneven tire wear patterns sometimes result from failing wheel bearings affecting alignment. We stock genuine INFINITI wheel hub assemblies that restore smooth, quiet operation to your luxury vehicle.

Trust custom made genuine OEM parts from Herrin-Gear INFINITI for your next repair.