Three Pack Nema 17 Stepper Motors High Torque 145 mNm 20.53 oz-In Bipolar 2-Phase 4-Wire For 3D Printers And CNC Machines, Drop-In Ready, 1A Current, 1.8 Degree Step, 42x42x20.5 mm Size, Shaft 5 Mm, D Shaft 4.5 Mm

Three-Pack Nema 17 High-Torque Stepper Motors for CNC
✔️ 3x Nema 17 motors, 145 mNm torque, 1A, 1.8°, 42x42x20.5 mm

These compact Nema 17 bipolar stepper motors deliver strong torque and precise positioning for CNC machines, 3D printers, and automation projects. Drop-in ready with standard 4-wire configurations, they plug into most driver boards easily for straightforward open-loop control.

✅ Size: 42x42x20.5 mm
✅ Shaft: 5 mm diameter, D shaft 4.5 mm
✅ 2-phase, 4-wire: Black A+, Green A-, Red B+, Blue B-
✅ Step angle: 1.8 degrees
✅ Rated current: 1 A
✅ Phase resistance: 3.5 Ω ±10%
✅ Phase inductance: 3.8 mH ±20%
✅ Holding torque: 145 mNm (20.53 oz-in)
✅ Rotor inertia: 14.5 g cm2
✅ Weight: 0.12 kg
✅ Pack: 3 motors in set

💡 What is a NEMA 17 stepper motor used for in hobby and industrial setups? A handy primer to plan projects.
- Precise positioning in 3D printers and small CNCs
- Reliable open-loop drive for automation projects
- Easy interface with common drivers for straightforward control