568879.H195 Heavy Truck wheel hub bearing 21102685 21363715 F-568879 Truck bearing BSSD wheel bearings

Description of Truck Wheel Hub Bearings

Truck wheel hub bearings are a type of bearing specifically designed for trucks, whose main function is to support the wheels and reduce friction, ensuring the stability and safety of truck operation. This type of bearing is usually composed of tapered roller bearings, which have the characteristics of pre adjustment, lubrication, and sealing to simplify installation and extend service life.

The design and working principle of truck wheel hub bearings are based on the basic mechanical concepts of rolling friction and torque transmission. It includes an inner ring, an outer ring, rolling elements, and a cage, which reduce friction by rotating rolling elements (usually steel balls or rollers), allowing the wheel to rotate freely. In addition, wheel hub bearings also need to withstand axial and radial loads to ensure stable operation under various operating conditions.

The advantages of truck wheel hub bearings include pre adjustment, easy installation, lubrication, and sealing, which simplify the installation process, reduce the possibility of installation errors, and thus lower maintenance costs. In addition, this type of bearing can withstand extreme operating conditions, reduce the need for frequent maintenance, and improve the reliability and attendance of trucks.

Dimension 78x130x135mm 

OEM number: 7421102685 7421363715  21102685  21363715 

Replacement: 568879 631903.H195  568879.H195