The test results show that the torque requirement of the system is always low, even if there is a change, the required friction drive torque is little or no change. In the motor, a custom composite door is developed for our screw and nut materials. It uses an application to automate the process, providing long nut life and smooth running at an additional cost. E is a soft coating, a long-term drying agent, optimized for soft plastics such as acetals and nylon, with or without mechanical strength. The particles are transferred from the inner part of the screw through the lubricating agent of the screw. Be careful Ball screw pair There will be no debris and voids in the coating, but it has been proved that voids have no effect on system performance. The nut can be transferred periodically through the entire service life area of the nut as long as it can continue to run through the area. Although the lubricant is a solid, it also has some "diffusion" ability in the fluid agent. Coated screws provide a large degree of self-lubricating and should not be used in environments where oil or other lubricants may be contaminated. In addition to the self-lubricating acetal nut material, a customized composite Ke composite polymer is provided. Polymer is a series of high materials, with color grindability and cost, and provides design potential through injection molding. Polymers provide a wide range of mechanical, thermal and electrical properties and are compatible with many chemicals in environmental conditions. Most of the bushing and bushing materials are standard for shaft and bushing. Each member of the column is equipped with a lubricant, a strength agent and a thermoplastic polymer.