On a wind turbine, a keyed shaft with set screws is not good enough in my opinion. Most wind turbines with shafts have a tapered shaft. If I was using a motor with a straight shaft I would at least use a 'tapered lock hub' sort of like this:
I used to build lots of machines with ametek tape drive motors - same sort of thing, straight tapered shaft, and the hubs would always fall off after a year or two, or at least get loose and we'd save it before they fell off. I either wound up using a tapered lock hub - or welding the hub to the shaft in such a way I could grind it off when needed (for bearing replacement). A hub that relies only on the key, and set screws is insufficient.
Other than welding, you mentioned a tapered locked hub? How is this held in place? If the shaft tapers can't the hub come off the front? Do you have a picture or diagram and I will bring this to the shop and have this done instead?
ThanksJonathan[ Parent ]
