SM15 Stepper Motor With 1812 Compact Precision Worm Gear Reducer For Door Locks And Medical Instruments

15mm stepper motor attached with 1812 worm gearbox

This series of geared motors is assembled using SM15 stepper motor and 1812 precision metal worm gear reducer.

The gear motor overall volume is small, the reduction ratio can be selected in a wide range, and the angle between the output shaft and the motor bearing is 90 degrees, which is suitable for the installation requirements of special occasions.

The basic step angle of the motor is 18 degrees, that is 20 steps per revolution, plus the deceleration effect of the gear box, the final motor angle resolution can reach 0.018~0.9 degrees, which can be used in various places requiring precise control.

The selectable speed ratios are 1:21 1:42 1:118 1:236 1:302 1:399 1:515 1:603 1:798 1:1030, different speed ratios will produce different final Torque and speed, customers can choose according to different torque and speed requirements. Special speed ratios can be customized, please contact us to discuss if necessary.

When selecting a motor, it is necessary to comprehensively consider the speed and torque while meeting the requirements. The drive frequency of the stepper motor determines the speed of the motor, and the reduction ratio of the gearbox determines the final output shaft rotational speed. Here is a short-answer formula to help customers choose a motor. Output shaft speed N (rpm)=(PPS*18/6/i) . For example, if a gear box with a speed ratio of 118 is selected and the motor is driven at 800pps, the final output shaft speed N=800*18/6/118=20.33

This series of gear boxes adopts the most advanced related parts processing equipment, high precision, high efficiency, low noise, and adopts reasonable and reliable technology, so that the products have better reliability. The power input part and standard stepper motor can adopt the form of probe structure, FPC, FFC, PCB cable and so on. The output of the motor part can adopt various output structures such as round shaft, D shaft, screw, gear, pulley and so on!

SPECIAL IMPORTANT REMINDER

Due to the use of the worm gear structure, the entire motor has a compact structure, but the efficiency of this structure is relatively low, so special attention should be paid when selecting it.

SM15mm-1812 worm gearbox stepper main parameters:

SM15-1812 Worm gear stepper motor out drawing:

SM15-1812 Worm gear stepper torque curve:

Since there are many speed options, the output torque can be the torque * speed ratio * efficiency of the motor, and the specific situation will generally be determined after testing the actual sample. The following is the torque curve of the SM15 stepper motor for reference.

SM15-1812 Worm gear stepper motor display: