This item is a stepper motor, with 4 pin cable for convenient use, suitable for 17HD34008-22B mixing type stepping motor. Necessary replacement for 3D printer. Features - Brand: LEORX. - : The order of power is AB-BC-CD-DA, seen from the shaft end to CW - Current Rating (single-phase): 1.3A DC - Nominal voltage: 2.4V - : 1.8 ° - Insulation grade: - 1m wire to connect an electrical machine, on the other hand has several optional connections; To prevent shrink tubing effect that the wire gets tangled up D-shaped shaft with 22mm, electric machine with high torque and high speed, low noise. - Suitable for mixing 17HD40005-22B stepper motor. - Exterior: Shown as the pictures. - Drive mode: Hack wave constant current drive. - Exciting mode: two- -wire. It is available for the rotation of the forward and reverse. Specifications - Ambient temperature: -20 ~ 50 degree centigrade - RH: 90% max - Mounting position: shaft horizontal or vertical installation - DC winding resistance (25 degree centigrade): 1.6 Ω ± 10% - Wnding Inductance: 3.2mH ± 20% - Cogging torque: 18mN. - Holding torque: ≥ 360mN.m (I = 1.3A) - switching frequency: ≥ 1400pps - Max Idle :. ≥ 8000pps - Temperature rise: <80 K - accuracy: 1.8 ° ± 5% - Rotational inertia: 57g.cm 2 - Motor Weight: 0.28 kg / pcs REF - Insulation resistance: Cold insulation resistance should be more than 100 mOhm (between the motor and terminal) - Dielectric strength: The space between the motor and terminal should withstand able AC600V / 1s without degradation. Leakage current of less than 1 mA. - Size (L * W * H): ca. 42 * 42 * 40mm / 1.65 * 1.65 * 1.57 inch Package list: 1 * LEORX 17 2 -Wire 1.5A 40mm 1.8° Stepper Motor for 3D Printer 1 * LEORX Cable