The world smallest size φ4mm DC brushless motor
Combination of brushless motor with planetary gear is available
Gear ratio options: 4.3/18/79/337
There are only a few companies in the world that can mass-produce 4mm brushless motors. Orbray produced this motor for large telescope use. This small geared motor was used to control the position of optical fiber inside of the telescope. Although it has a small diameter, it produces delicate movements.
Application Example:
-Medical
-Analytical measuring device
-Telescope