Here is a tip for those aligning wind turbines.
In many cases we cannot mount with chains and brackets on the gearbox shaft. This leaves us with the decision of where to mount the measuring (S-Unit) with a magnet. First, decide if you want to mount on the brake disc or the mounting flange for the coupler. Look for a place as close down by the shaft as possible. Check for clearance of the brake caliper.
Once you decide where to mount, check the measurement 2 or 3 times to make sure it repeats. On some turbines we have found that some components will shift when the brake is engaged. Mounting close to the shaft will minimize the effect. If your results are not repeating, look for an alternative spot to mount and re-test. If they do repeat, you have found a good solution.
You can contact us for help in mounting lasers on high speed shafts in wind turbines.