This is bipolar Nema 17 stepper motor with 1.8° step angle (200 steps/revolution). Each phase draws current 0.4A at 12V, allowing for a holding torque of 26Ncm(36.8oz.in). A rear shaft can mount encoder or equals.

Electrical Specification

* Manufacturer Part Number: 17HS13-0404D
* Motor Type: Bipolar Stepper
* Step Angle: 1.8°
* Holding Torque: 26Ncm(36.8oz.in)
* Rated Current/phase: 0.4A
* Phase Resistance: 30ohms
* Recommended Voltage: 12-24V
* Inductance : 37mH±20%(1KHz)

Physical Specification
* Frame Size: 42 x 42mm
* Body Length: 34mm
* Shaft Diameter: Φ5mm
* Front Shaft Length: 20mm
* Rear Shaft Length : 10mm
* D-cut Length: 15mm
* Number of Leads: 4
* Lead Length: 400mm
* Weight : 230g

Connection:

Black(A+), Green(A-), Red(B+), Blue(B-)

Warning:

Make sure the motor connect to a constant current or chopper drive controller before you test motor.
Connecting the motor directly to a power supply will destroy the motor.