Micro gear motor can provide low speed and high torque output, such as electronic locks, beauty products, 3D pens, printers, smart car mounts and other products, all need to use micro DC gear motors.

In the selection of miniature DC deceleration, some basic parameters need to be determined, such as: rated voltage, rated speed, rated torque, rated power, torque, reduction ratio, etc. In addition, the working environment of miniature DC deceleration motor should also be considered , Moisture, corrosion, ambient temperature and other special environment applicable characteristics.

There are horizontal installation and vertical installation for the miniature DC geared motor installation. The shaft center should be solid shaft or hollow shaft. If it is solid shaft installation, it is necessary to consider whether there is axial force and radial force.

The main features of miniature DC geared motors are compact structure, high precision, small return clearance, small volume, large transmission torque and long service life.

Different applications, the size, shape and installation method of the miniature DC gear motor are different, and the power needs to consider the current, voltage, speed, reduction ratio, transmission ratio, torque, load capacity, noise, transmission efficiency, series, etc. .

Transmission ratio:

Transmission ratio = use torque ÷ 9550 ÷ motor power × motor power input revolutions ÷ use coefficient

i=n1/n2=D2/D1

Torque calculation formula:

P = T * n / 9550;

T=9550P/n;

P: power (kw/W);

T: torque (Nm, Nm);

n: speed (r/min);

9550 is a constant

Speed ratio calculation formula: n2=n1/I, I=n1/n2.