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 - Optional ports; Shrink tubing effect to prevent the wire becoming tangled up. - D-shaped shaft with 22mm, electric machine with high torque, high speed, low noise. - Suitable for mixing 17HD60001-22B stepper motor. - Exterior: Shown as the pictures. - Drive mode: Hack wave constant current drive. - Exciting mode: two-phase 4-wire. It is available for the rotation of the forward and reverse. - Effet: The order of power is AB-BC-CD-DA, seen from the shaft end to CW. - Current Rating (single-phase): 1.5 A DC. - Nominal voltage: 2.4V. - Step Angle: 1.8 . - Insulation grade: Grade B. Specifications - Wnding Inductance: 3.6mH plusmn; 20% - Cogging torque: 40mN.m REF - Holding torque: ge; 600mN.m (I = 1.5A) - Max Blank switching frequency: ge; 1200pps - Max Idle frequenc. ge; 8000pps - Temperature rise: lt;80K - Step angle accuracy: 1.8 plusmn; 5% - Rotational inertia: 102g.cm 2 - Motor Weight: 0.48 kg / pcs REF - Insulation resistance: Cold insulation resistance should be more than 100 mOhm (between the motor stator and terminal) - Dielectric strength: The space between the motor stator and terminal should withstand able AC600V / 1s without degradation. Leakage current of less than 1 mA. - Size (L * W * H): ca. 42 * 42 * 60mm / 1.65 * 1.65 * 2.36 inch