shaft alignment rim and face angular alignment formula application and benefit.

For the first time you will see why we use face and rim formula. The reason is angular formula for shaft angular alignment correction will not change offset position . So one can add radial misalignment and angular misalignment correction at one time and so correction is done in one step. This all has been explained practically . Try to understand this . It will help you to avoid confusion when you will perfotm shaft alignment . For example if motor is up you will be confused when you are required to add shims . it can happen when your angular reading is plus and shim required to add is more than shim required to be removed .