This NEMA 17 size stepper motor manufactured by SOYO has a 1.8° step angle (200 steps/revolution). Frame size of this NEMA 17 is 42 mm x 42 mm while frame length vary according to selected option as well as holding torque (from 3.2 kg-cm at 4V@1200mA for 48 mm length up to 3.7 kg-cm for 38 mm length).

Options (Frame Length)

Please select one of the three possible frame length. Option is not available when stepper motor is out of stock.

Option: frame length	Model	Holding Torque	Voltage	Current
38 mm	SY42STH38-1684A	3.7 kg-cm	2.8 V	1680 mA
48 mm	SY42STH47-1206A	3.2 kg-cm	4 V	1200 mA

This motor is equipped with a 5 mm D-shape shaft (flattened by 0.5 mm) that you can use to safely tight a 5 mm bore size pulley or hub. Please notice that our 5 mm GT2 pulley may be slightly adjusted with a file to fit on this shaft. Shaft length is 24 mm.

Features

type: NEMA 17 bipolar
model: SOYO SY42STHx
steps/revolutions: 200
shaft diameter: 5 mm “D”
step angle: 1.8°
lead size: 30 cm
number of leads: 4 (26 AWG)
mounting holes: 4x M3 screw holes with 26 mm spacing

The motor has four color-coded wires terminated with bare leads: black and green connect to one coil; red and blue connect to the other. It can be controlled by a pair of suitable H-bridges (one for each coil), but we recommend using a bipolar stepper motor driver.

Part List

1x stepper motor

Compatibility

Parts with 5 mm hole

Documents

Mechanics
Dimensions L x W x H	42.3 mm x 42 mm x (38 - 48) mm
Weight	285 g to 350 g

NEMA 17 Stepper motor, 42² mm

Soyo
This Soyo NEMA 17 is a bipolar stepper motor with a step resolution of 1.8° angle (200 steps/revolution). Frame size is 42mm x 42 mm for a length between 38 mm and 48 mm according to option. Holding torque vary from 3.7 kg-cm to 3.2 kg-cm.
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Availability: 31 (Canada)