The frictional torque of a track roller depends on many influencing factors such as load, speed and track roller type, as well as the lubrication conditions and seal friction. Due to the wide range of these influencing factors, the frictional torque can only be calculated approximately. The thick-walled outer rings of yoke type track rollers can support high and shock-type loads. Compared to rolling bearings supported in a housing bore, track rollers have the following characteristics: modified load distribution in the bearing bending stresses in the outer ring