<p>The effects of roller skew on the wear in tapered roller bearing are investigated in the current work. A quasi-static model considering roller skew is established, and a wear depth calculation model suitable for tapered roller bearings is derived. The wear depth of raceways and roller elements in tapered roller bearings with and without roller skew are compared. The effects of bearing speed, load, friction coefficient, and cage pocket clearance on wear depth are analyzed. The results revealed that the bearing load and friction coefficient significantly affect the roller skew angle and the bearing wear distribution. A 25 % increase in bearing load leads to a 35 % rise in the peak wear depth of the inner raceway, while the peak wear depth of the outer raceway increases by 75 %. When the friction coefficient exceeds 0.1, the peak wear depth of the outer raceway due to roller skew reaches more than twice the value without considering skewing effects. The effects of cage pocket clearance on the roller skew angle and wear distribution are a little weak under good lubrication condition. The relationship between bearing speed and bearing wear is opposite, with higher speeds leading to smaller wear coefficients, resulting in smaller wear depth. The roller skew causes the peak contact pressure between roller and inner raceway to increase and the peak contact pressure between roller and outer raceway to decrease. The roller skew has more significant effects on the wear distribution of the outer raceway than on that of both the inner raceway and the roller element.</p>