Vertically Mounted Motors are used for applications such as pumps and blowers. These motors are similar to their horizontal counterparts, except that they have few differences in the design. The most obvious example is in their ability to withstand axial loads.
Horizontally mounted motors do not have to withstand axial loads. Hence, roller bearings or ball bearings can be used. In vertically mounted motors, angular ball bearings are usually used to help the motor withstand axial thrust.
In case of higher thrust loads, special thrust bearings will be used.