Voice Recorder Accessories -Stepper Motor Driver Highlights Generic Brand Stepper Motor Driver Description: Planetary gear reduction stepper motor. It is a popular Nema 17 geared stepper motor with medium body and torque. It has an integrated planetary gearbox with a gear ratio of 1:5.18. It is a good solution for applications requiring low rotational speeds and/or a lot of high torque. Size: 83x42x42mm/3.27x1.65x1.65inch Specification: Rated voltage: 2.9V Rated current/phase: 1.68A Phase resistance: 1.65ohms Inductance 4.1mH Max. Leads: 4 Package Includes: 1 Piece Stepper Motor Note: Please allow slight dimension difference due to different manual measurement. Due to the light and screen difference, the item's color may be slightly different from the pictures. Try to understand.