@PRR Man posted:
Jim; most vertical drive motors have 'double lead' worms on them. (which you probably know) Changing to a single lead worm effectively reduces the ratio by doubling it, Some time ago I bought that spec worm and worm gear set from NWSL to experiment with. It works! Toughest part was getting the OEM worm off the motor shaft!
Can you supply a link or part number to this NWSL worm gear set? This would be great if I could run my Atlas units back to parallel wiring and get good speed control. What do you believe makes it so tough to get off of the motor shaft, e.g. do you think they used some type of Loctite or is it just some crazy-tight interference press fit?