Which of these alternatives best describe taper roller bearings? （ ）
A.Have high radial load carrying capacity, can run at high speeds, and are separable.
B.Can accommodate misalignment, have good radial load carrying capacity, can handle some axial load in both directions and can run at high speeds.
C.Can handle high combined loads but can only carry axial loads in one direction and are therefore normally fitted in pairs.
D.All Right
正确答案是C