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  • Hybrid Stepper Motors

HT17-278 NEMA 17 High Torque Step Motor

Applied Motion Products

Part NumberHT17-278
Frame SizeNema 17
Motor TypeHigh torque
Part Number w/Double ShaftHT17-278D
Part Number w/EncoderHT17-278D-WAA
Motor Length2.47 inches
Number of Lead Wires8
Lead Wire Configurationflying leads, no connector
Lead Wire/Cable Length12 inches inches
Lead Wire Gauge26 AWG
Unipolar Holding Torque79 oz-in
Bipolar Holding Torque113 oz-in
Step Angle1.8 deg
Bipolar Series Current1.0 A/phase
Bipolar Series Resistance6.4 Ohms/phase
Bipolar Series Inductance12 mH/phase
Bipolar Parallel Current2.0 A/phase
Bipolar Parallel Resistance1.6 Ohms/phase
Bipolar Parallel Inductance3.0 mH/phase
Unipolar Current1.4 A/phase
Unipolar Resistance3.2 Ohms/Phase
Unipolar Inductance3.0 mH/phase
Rotor Inertia1.74E-03 oz-in-sec2
Weight1.32 lbs
Storage Temperature-30 to 70 °C
Operating Temperature-20 to 50 °C
Insulation ClassClass B (130 ºC)
Maximum Radial Load4.7 lbs
Maximum Thrust Load2.25 lbs
Shaft Run Out0.0012 inch T.I.R. max
Radial Play0.0008 inch max w/ 1.1 lb load
End Play0.003 inch max w/ 1.1 lb load
Perpendicularity0.004 inches
Concentricity0.002 inches