It is important to understand when and how to use linear stepper motor actuator technology. It is necessary to know the components of a linear motor stage as well as the components used in making other linear actuators such as belts and rack and pinions that rely on rotary-servo motors.There are four types of linear actuatorsThere are many types of linear servo motors. It is important to understand the strengths and weaknesses of each and the best application for them.There are many options for linear actuators in the motion control market. These four types of actuators are common: linear motors and ballscrews; belts and rack and pin.1. Linear motor stageLet’s begin with a definition of a linear motor stage. The distinguishing feature of a linear motor is the load moves without any mechanical power conversion.2. Ballscrew actuatorThe ballscrew is the standard go-to actuator for a wide variety of applications. These also have a carriage that moves on linear bearings and rails. 3. Belt actuatorA belt actuator also has a carriage which moves on rails with linear bearings. This carriage is driven by direct connection to a timing belt riding on two pulleys. 4. Rack and pinionA rack and pinion system is often comprised of a motor that drives a pinion, moving itself along a fixed rack, like a train on a track. Linear actuator initial costLet’s start with the bottom line – initial cost. The linear motor often has the highest overall performance. Stands to reason, therefore, the initial cost is also generally higher than other technologies. Ballscrews are less expensive than linear motors. Speed and acceleration for linear actuatorsMotion control systems have the need for speed. Faster better and more means a quick return on the investment. This translates to not just top speed, but fast acceleration.Length for linear actuatorsThe large systems driven by rack and pinion can also be quite long and it is cost effective to increase the length with additional rack segments with little impact on performance.See more:https://gotartwork.com/Blog/how-to-choose-a-cnc-stepper-motor-with-useful-standard/50880/
