The wire raceway ball bearings can sustain forces from whatever directions due to their 3-point or 4-point geometry . There are four types of the wire raceway ball bearing .For example , 4-point contact bearing assembly with a carrying angle of 45ípor 30íp; double row inclined bearings for rational speed and very high precision ; double row 3-point contact bearings with low rotational resistance , flexibility and a very good running behavior ;and cylindrical roller bearings with stiffness and compactness . Industry packing