What's Hybrid Stepper Motor Parameters and Their Abbreviations?

Stepper motors are commonly used in a wide range of applications, including robotics, automation, and precision control systems. Among the different types of stepper motors , hybrid stepper motors are a popular choice due to their high performance and accuracy. To choose the right hybrid stepper motor for your application, it's important to understand the various parameters and their abbreviations.

One of the most important parameters for a hybrid stepper motor is the holding torque (H). Holding torque is the amount of torque that the motor can generate when it is stationary. It is an important consideration for applications that require high torque at low speeds, such as robotics and CNC machines.

Another important parameter is the step angle (θ), which is the angular distance between each step that the motor takes. The step angle is typically expressed in degrees, with common step angles being 1.8° or 0.9°. A smaller step angle provides more precise movement but can result in lower torque.

 

The rated current (I) is the current that the motor is designed to operate at continuously without overheating or damaging the windings. This is an important parameter to consider when selecting a driver or power supply for the motor.

Resistance (R) is the electrical resistance of the motor's windings, while inductance (L) is a measure of how much the current passing through the motor's windings resists changes in that current. These parameters are important for calculating the motor's electrical time constant, which is a measure of how quickly the motor can respond to changes in current.

Detent torque (Td) is the amount of torque that is required to move the motor out of its current position, while rotor inertia (J) is a measure of the rotational mass of the rotor. These parameters are important for applications that require high acceleration or deceleration.

By understanding these parameters and their abbreviations, you can select the hybrid stepper motor that best meets your requirements for your specific application. With a wide range of hybrid stepper motors available on the market, it's important to carefully evaluate your needs and compare the different options to make an informed decision.