NEMA24 Worm Gearbox Reduction Speed Reducer 10 15 20 25 30 40 50 60 80 100:1 CNC RM 352.73 to RM 375.25
NMRV030 Worm Gear Reducer 56B14 Speed Reducer Ratio 10/15/30:1 for Stepper Motor RM 361.32 to RM 389.12