Alignment of Generator with Gear Box Coupling

Maybe you could get a custom made coupling, but that might cost as much and take as much time just to redo it correctly....

The hold-down bolts are likely larger than 14mm diameter, so moving any one item may result in overlapping bolt holes, which is untenable.

Your most hopeful option is probably a modified gearbox-generator coupling. This may necessitate collaborative engineering among the generator, gearbox, and coupling manufacturers. Overhung loads, vibration analysis, etc.

Do let the forum know how the phone call with the original equipment manufacturer went.

Assuming that the coupling faces are in perfect alignment but uniformly 14mm apart, the manufacturer may offer to fabricate a circular filler plate with the proper fit and finish to mate with the existing flanges and bolt holes, then spin test and balance it prior to installation. You could fabricate such a piece on your own, but doing so without the factory's approval will void the warranty for all equipment connected to it.

Quite frankly, you screwed up once so why would the factory trust you to do it right the second time; therefore follow Lyn's advice.

Are you the project engineer or the inspector trying to Cover Your A$$? Somebody screwed up substantially, and that someone should be let go off the job. As Lyn said, contact the manufacture and as RamConsult's suggested, maybe a filler plate,. But,you have to get the the manufacture involved for the warranties.

Please come back and let the forum know the outcome of the install.

14mm spacer may be placed between the couplings to make up for the increase in gap.