Formula for Face and Rim Alignment Calculation

A B D R

Up or left

F bf br A= distance from measurement plane to rear feet B= distance from the measurement plane to the front feet D= diameter of the dial indicator swing on the face (diameter of coupling) br= bottom ring reading when zeroed at top bf= bottom face reading when zeroed at top F= required shimming on front feet R= required shimming on rear feet F= bf B/D – br/2

R= bf A/D – br/2 For vertical adjustment Zeroed indicator on the top Positive values for F & R indicate that motor must be raised. Opposite, negative values indicate that the motor must be lowered. For horizontal adjustments Zeroed indicator on the left Positive values for F& R indicate that the motor has to be moved to the left. Negative values for F&R indicate that the motor must be moved to the right.