Product description: JK42HS40-1684 stepper motor 200 steps/rev 2,8 V / 1,68 A / 0,4 NmBipolar stepper motor, four wire. It has a resolution of 200 steps per revolution (1.8 degrees). It is powered by 2.8 V and draws 1650 mA per coil. The torque is 4.0 kg*cm (0.4 Nm). Dimensions are 42 x 42 x 40 mm (..