The size of the smallest stepper motor actually depends on its design and manufacturing process. At present, there are ultra-micro stepper motors, also known as ultra-small stepper motors, on the market, which can be very compact.
Specifically, some ultra-micro stepper motors have a maximum size of only 10mm×10mm×5mm, which is one of the smallest stepper motors known so far.
Such motors are usually used in applications with extremely strict space requirements, such as micro robots, precision instruments, etc.
The size of the stepper motor not only affects its application scenario, but is also closely related to its performance parameters. For example, the step angle, holding torque, rated current, etc. of the motor will change as the size of the motor decreases.
Therefore, when choosing a stepper motor, it is necessary to consider it comprehensively according to the specific application requirements and performance requirements.
In general, the size of the smallest stepper motor can be very compact, but the specific size may vary depending on different manufacturers and product models.
When choosing, it is recommended to refer to the technical specification sheet provided by the manufacturer or consult professionals for accurate information.