OVERVIEW:

A stepper motor to satisfy all your roboticsneeds! This 4-wire bipolar stepper has 1.8° per step for smooth motion and anice holding torque. The motor was specified to have a max current of 350mA sothat it could be driven easily with an Adafruit motor shield for Arduino (orother motor driver) and a wall adapter or lead-acid battery.

Some nice details include a ready-to-go cableand a machined drive shaft (so you can easily attach stuff). We drove it withan Adafruit motor shield for Arduino and it hummed along nicely at 50 RPM. Toconnect to our shield, put the wires in this order: Red, Yellow, skip ground,"Green, Brown (or Gray).

Features:

200 steps per revolution, 1.8 degrees
Coil #1: Red & Yellow wire pair. Coil #2Green & Brown/Gray wire pair.
Bipolar stepper, requires 2 full H-bridges!
4-wire, 8-inch leads
42mm/1.65" square body
31mm/1.22" square mounting holes, 3mmmetric screws (M3)
5mm diameter drive shaft, 24mm long, with amachined flat
12V rated voltage (you can drive it at alower voltage, but the torque will drop) at 350mA max current
28 oz*in, 20 N*cm, 2 Kg*cm holding torque perphase
35 ohms per winding

Document:

NEMA 17 Stepper Motor

Summary
Ambient Temperature	-20??+50?
Inductance Accuracy	±20%
Resistance Accuracy	±10%
Temperature Rise	80? Max
Insulation Resistance	100M?Min.500VDC
Output
Dielectric Strength	500VAC for one minute
General Specification
Shaft Axial Play	0.08Max.(450g-load)
Shaft Radial Play	0.02Max.(450g-load)
Step Angle Accuracy	±5%

NEMA 17 STEPPER MOTOR

Description

Features