Industrial grade small stepper motor, ideal for small CNC projects and robots. Has a holding torque of 4.4 kg·cm (43.1 N·cm or 61 oz·in). 5 mm diameter round shaft at both ends. This motor suits 3D printers like the RepRap and Makerbot cupcake machines.
This NEMA 17 frame motor is 42 mm square on the face, with four M3 tapped holes. The mounting holes are 31 mm from centre to centre square. To drive this motor we recommend the DM422 (SMC-010), DM432 (SMC-008) or our MX3660 (SMC-040).
Specifications:
| Step angle | 1.8 ° |
|---|---|
| Step angle accuracy | ±5% |
| Temperature rise (max) | 80 °C |
| Ambient temperature | -20 to 50 °C |
| Insulation Resistance (at 500 VDC) | ≥100 MΩ |
| Dielectric strength (1 min.) | 500 VAC |
| Shaft radial play (450 g load) | ≤0.02 mm |
| Shaft axial play (450 g load) | ≤0.08 mm |
| Max. radial force (20 mm from flange) | 28 N |
| Max. axial force | 10 N |
| Current per phase | 1.68 A |
| Resistance per phase (± 10%) | 1.65 Ω |
| Coil voltage (continuous) | 2.8 V |
| Inductance per phase (± 20%) | 2.8 mH |
| Holding torque | 4.4 kg.cm |
| Number of leads | 4 |
| Rotor inertia | 68 g.cm2 |
| Weight | 350 g |
| Detent torque | 200 g.cm |
| Body Length | 48 mm |
| Front shaft length | 24 mm |
| Rear shaft length | 10 mm |
Dimensions:
Wiring:
Speed-torque Curve:
