NEMA24 Worm Gearbox Reduction Speed Reducer 10 15 20 25 30 40 50 60 80 100:1 CNC RM 346.45 to RM 368.56
NMRV030 Worm Gear Reducer 56B14 Speed Reducer Ratio 10/15/30:1 for Stepper Motor RM 354.88 to RM 382.18