How to select linear modules is a question that all professionals in the industry, those who are about to enter the industry, or relevant engineering practitioners must face. Linear modules are divided into single axis linear modules, cross shaped linear modules, and gantry shaped linear modules according to their construction methods. Single axis linear modules are divided into horizontal, vertical, side, and inverted according to their installation methods. The method of selecting and calculating based on different gravitational forces is also different.

How to choose the straight module model we need? The first element we need to know is:

1. The load of the linear module determines the width of the module we use, as well as the size of the screw.

2. Speed, also known as the motion cycle, needs to be matched with the ball screw lead and motor speed matching, which means the size and cost of the motor.

3、The effective travel of the linear module determines the length of our module. Taking our RY120-L1620-200-O as an example, calculate:



4、The accuracy of the ball screw linear module is related to the grinding accuracy of the screw and the installation method of the guide rail. The repeatability accuracy, compensation accuracy, servo motor or stepper motor accuracy are all different. Choose the appropriate accessories one by one according to the required options.