The spheruical roller bearings can be mainly used to carry radial loads,it also can carry a small amount os axial loads.It has the capability of self-alignment.It is able to rotate ordinary even when the shaft is subjected to curve or fitted in misalignment.And its angular misalignment permits within the range of 0.5°to 2°。This type of bearing has strong anti-impact capability,but it can only be operated in low speed rotation.