Hi there - this is my first post and I hope one of many to come! My query is a relatively simple one; I'm working with an engineering cleaning application where fluid will be fed into a cylindrical block and spun out into a surrounding container. The block is 3.5m long and ∅0.140m, weighing in at 92kg. It sits inside a vacuum chamber weighing 48.6kg, total 140.6kg. I think a belt drive solution will be most practical from a design perspective, and I'm trying to size the motor to drive the load at a frequency of minimum 500RPM. It's a long time since I've done this sort of calculation.