Nice work John! In my early days I did a lot of repair and overhaul work for couplings like that. My employer was a maker of plastics extruders and downstream filtration and process equipment, though he also bought & sold a lot of used machinery related to that business. I've seen those taper lock shaft couplings on so tight and permanent that the only way they came off was to machine them off or even use a cutting torch.
Funny thing about the 12 threads per inch threads, we get a lot of that on this side of the pond too. Mostly it's because all the best bearings are metric, and the locknuts are all metric diameters with 12 TPI threads. Are you doing this work professionally? It sure looks like work that should pay well.
Funny thing about the 12 threads per inch threads, we get a lot of that on this side of the pond too. Mostly it's because all the best bearings are metric, and the locknuts are all metric diameters with 12 TPI threads. Are you doing this work professionally? It sure looks like work that should pay well.