5-Pack NEMA 17 Stepper Motors 0.13Nm 1.0A 42x42x20.5mm 1.8° 2-Phase for 3D Printers CNC Robotics

5 Pack NEMA 17 Stepper Motors 0.13Nm 42x42x20.5mm Body
✔️ 1.0A 1.8 Degree 200 Steps High Torque Motors

This 5 pack of NEMA 17 stepper motors is built for 3D printers, small CNC machines, laser engravers, and DIY robotics that need steady torque in a compact frame. With a 42x42x20.5mm body and 0.13Nm holding torque, these motors are handy for precise axis control and smooth layered printing.

✅ Pack size: 5 motors
✅ 2 phase bipolar NEMA 17 design
✅ Step angle: 1.8 degree, 200 steps per revolution
✅ Holding torque: 0.13 Nm, 18.41 oz in
✅ Rated current: 1.0A per phase
✅ Resistance: 3.5 ohm
✅ Inductance: 3.4 mH ±20%
✅ Body size: 42x42x20.5 mm, 1.66x1.66x0.81 in
✅ Shaft diameter: 5 mm
✅ Shaft length: 24±0.5 mm
✅ D cut length: 24 mm
✅ Cable length: 1 m
✅ 4 wire code: A+ A- B+ B-
✅ Installation hole pitch: 31 mm
✅ Weight: 121 g each

💡 How do you properly size a NEMA 17 stepper motor for accurate axis control in 3D printers or CNC builds?
Start by matching torque, current rating, and mechanical fit to your motion system.

• Make sure 0.13Nm holding torque exceeds axis load and acceleration demand

• Match 1.0A current rating to your stepper driver output

• Verify 42mm frame and 31mm mounting pitch fit your bracket

• Confirm 5mm shaft and D cut align with your pulley or coupling

If you want reliable positioning without oversizing your motors, this 5 pack keeps your motion system tight, accurate, and running smooth.