A unique line of high performance hub units from SKF

X-Tracker hub bearings

Developed in response to OE requests for a high performing hub bearing unit that provides precision handling and braking characteristics, SKF engineers developed the X-Tracker hub bearing. The X-Tracker is a performance hub unit that will deliver improved handling and comfort characteristics to cars, light duty trucks and SUV’s. SKF’s X-Tracker consists of a double row angular contact ball bearing arrangement, in which the outboard row is at a higher diameter and contains more balls than the inner row. This unique design increases the bearing’s capacity while improving hub stiffness by 50% over a traditional tapered bearing unit.

A stiffer hub provides many benefits including

  • Wheels runs truer during cornering and acceleration
  • Reduces deflection of the hub face and wheel for better steering, handling and vehicle dynamic behavior
  • Reduces brake wear due to true running of rotors, which helps reduce brake warranty costs
  • Improves both NVH (noise/vibration/harness) characteristics and bearing performance
  • Provides designers and systems integrators an alternative to a tapered bearing unit, freeing them to improve overall vehicle performance

SKF X-Tracker Hybrid hub bearings 

Designed for light duty trucks and SUV's

Features and performance

The SKF X-Tracker Hybrid hub bearing is designed to combine the strengths of ball and tapered roller hub units.

  • Asymmetrical design provides increased stiffness
  • Enables truck to handle more like a car
  • Reduced deflection of hub face provides better braking and handling
  • Improved steering accuracy and vehicle dynamic behavior
  • Improved brake wear and resulting NVH (noise/vibration/harness) due to truer running of the rotor