Thank you MintJulep,
I forgot to mention how quickly I wanted to rotate my roll, and the fact that I need to accelerate the roll. I would like the roll to accelerate from a dead stop, travel 180 degrees and decelerate to a dead stop again, all in 2-4 seconds (I'm not too picky about the speed)...
I am trying to size the motor for a turret unwinder that I am building.
My design is basically an arm that pivots on A-frame supported pillow-block bearings. The arm supports a roll at both ends. My worst-case-scenario is when one roll is unloaded and I have an unbalanced load of a 3,000 lb...
