SeriesConstruction TypeRatioBacklash (arc-minutes)EfficiencyWeight
(lbs)
Maximum Tested
Input RPM
Standard
NEMA 17 Series Single Stage 3:1 to 10:1 10 90% 1.96 5000
Double Stage 16:1 to 100:1 14 85% 2.44 5000
NEMA 23 Series Single Stage 3:1 to 10:1 10 90% 4.87 5000
Double Stage 16:1 to 100:1 14 85% 6.00 5000
NEMA 34 Series Single Stage 3:1 to 10:1 10 90% 11.89 5000
Double Stage 16:1 to 100:1 14 85% 14.62 5000

NOTE: Specifications are subject to changes without notice.