What is a reduction stepper motor?

Sep 01, 2025

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A reduction stepper motor is a stepper motor with a reduction gearbox. The following is a detailed explanation of reduction stepper motors:

Operating Principle:

A stepper motor is an induction motor. Its operating principle is to convert direct current into a multi-phase, time-sequentially controlled current through electronic circuits. This specific current is required for the stepper motor to operate properly.
The driver is a key component of the stepper motor, providing the multi-phase, time-sequentially controlled current for the stepper motor.

The Function of the Gearbox:

The main feature of a reduction stepper motor is its reduction gearbox, which significantly increases the motor's output torque without significantly increasing the motor's flange size.

The torque and speed of a reduction motor are often determined by the reduction gearbox's capacity, rather than simply multiplying the motor's torque by the reduction ratio.

Main Applications:

Increasing the motor's operating torque and reducing flange size: The reduction gearbox can increase output torque without increasing motor size.

Increasing the motor's moment of inertia and improving starting and stopping rigidity: The increased moment of inertia of a reduction stepper motor helps improve the motor's starting and stopping performance. Improving stepper motor resolution: Using a reduction gearbox can make stepper motor movements more precise, thereby improving resolution.
Avoiding speed resonance: By adjusting the reduction ratio, you can avoid the speed resonance zone of the stepper motor, ensuring stable operation.

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