Shaft Alignment
Shaft Alignment can be performed with a lot of different
tools and the 
easiest way is to use a ruler or a straight edge over the two coupling halves and align by eyesight - however, the result is not very accurate and it is very operator dependent. A better result can be achieved by the use of mechanical dial indicators.
A skilled and experienced operator can obtain good and reliable measurements, but it takes time and patience. A far easier and highly accurate way is to use laser based alignment systems - they do not require special skills and deliver accurate and reliable results.
Wearside Rewinds offer a professional shaft alignment system providing functions for measurement, alignment and documentation, including pre-alignment functions as well as measurement memory and printing capability.
