Its structural features are that it is matched by two sets of special structured tapered roller bearings, and the two raceways form a symmetrical structure. The inner ring is connected together through a lock ring and has a sealing structure. The lubricating grease is directly added when the bearing is assembled into a hub bearing unit.

   The product has the following advantages: the overall design is computer optimized design, and the contact surfaces of the inner ring, outer ring and rolling elements adopt convexity design and processing, it does not need to adjust the bearing clearance and its convenient assembly can improve the reliability. It has excellent features including large load capacity, easy installation and fix process, low starting friction torque, shortened effective load spacing and low noise.

  It can meet the requirements of high-precision, heavy-load, long-life and high-ability for heavy-duty vehicle wheels.