Description
Restore factory wheel-end alignment and eliminate dangerous hub play across your commercial fleet with the genuine FAG Wheel Hub Bearing Kit & Tapered Roller Bearing Assembly. Engineered specifically for heavy-duty commercial trucks, multi-axle freight haulers, and transit coaches, this OE-grade kit combines matched tapered roller bearings, precision cups, and heavy-duty hub seals into a single all-in-one replacement package. Pitted raceways, spalled steel rollers, incorrect pre-load adjustment, or contaminated hub grease cause deep roaring noises, excessive wheel wobble, high operating temperatures, and sudden axle failure. This original FAG bearing kit solves those mechanical failures directly. It features premium case-hardened 100Cr6 bearing steel, optimized logarithmic roller contact geometry, high-performance grease seals, and precision spacers to deliver uniform stress distribution, ultra-low friction torque, and uncompromised transport reliability in demanding fleet operations.
Technical Parameters
| Category | Specifications & Technical Details |
| Matched Tapered Roller Bearing Set | Each set contains precision-matched inner and outer tapered roller bearing units. They balance bearing clearance and load perfectly under multi-axle heavy-load conditions. As a result, this completely eliminates the wear differential caused by replacing a single bearing alone. |
| Logarithmic Profile Roller Geometry | We apply a slightly crowned logarithmic profile to the tapered roller generatrix. This eliminates edge stress under heavy-load deflection or impact load. Consequently, it greatly improves spalling resistance life. |
| High-Carbon Chromium Case-Hardened Steel | We manufacture the inner and outer rings and rollers from high-purity vacuum-degassed bearing steel. The surface achieves extremely high hardness and wear resistance, while the core retains good toughness to withstand severe road impact. |
| Heavy-Duty Integrated Hub Oil Seal | We include a multi-lip spring-loaded rubber oil seal as standard. It effectively blocks mud, fine sand, and high-pressure wash water intrusion. Moreover, it prevents hub gear oil from leaking out and contaminating the brake friction pads. |
| OEM Preload & Clearance Tolerance | We manufacture strictly to ISO / DIN international standards. Combined with precise lock nut adjustment, it keeps the hub assembly highly stable under high-speed rotation and thermal expansion. |
Applicable Car Brands & Models
Common warning symptoms include:
Deep Roaring or Humming Noise: A constant low-pitched rumbling noise from the wheel end that increases in volume and pitch with vehicle speed.
Excessive Wheel Hub Play: Noticeable looseness or wobbling when shaking the tire vertically or horizontally while lifted on a jack.
Abnormal Hub Temperature: The wheel hub housing feels significantly hotter than neighboring wheels after driving on the highway.
Oil Leakage and Contaminated Brakes: Gear oil leaking past worn hub seals onto the brake drums or discs, reducing braking efficiency.
Premature failure is typically caused by incorrect bearing preload adjustment (too tight causing overheating or too loose causing shock damage), contaminated gear oil, and water intrusion through damaged or low-quality hub seals.
Replacing the complete FAG wheel hub kit ensures that matched inner cups, cones, and new seals work together seamlessly. Installing new bearings against worn cups or reusing old seals often leads to premature pitting, oil leaks, and repeat failures.
Our 1-year warranty covers all raceway spalling, roller fatigue fracture, cage damage, seal material defects, and non-artificial mechanical failures under normal operating conditions. If a kit fails within 12 months, we provide prompt replacement or warranty processing upon inspection.
