This is one of the most popular Nema 23 stepper motor, it with step angle 1.8deg and size 57x57x56mm. It has 4 wires, each phase draws 2.8A, with holding torque 1.2Nm(169.93oz.in).

 

Electrical Specification

Physical Specification

Connection

A+
A-
B+
B-
Black
Green
Red
Blue
 
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