Performance of Sliding Screw and Nut Assembly in Linear Drive Application Scheme and Comparison with Ball Screw

1: characteristics and advantages: compared with the rolling ball screw manufacturing cost is lower, from the material, nut specifications and shape, screw straight through and lead in the design, modification of more diversity, to meet customer needs
2: Vibration and noise: Evergreen Company uses various wear-resistant, temperature-resistant, self-lubricating Evergreen maintenance-free and long-life composite engineering plastic materials to eliminate backlash nuts. There will be no vibration caused by the ball circulation of the ball screw, and the noise is lower than that of the ball screw.
3:; Corrosion resistance-the use of stainless steel and engineering plastic nuts, screw surface anti-corrosion treatment (see Evergreen Technology part of the surface treatment)
4: working environment requirements-compared with the ball screw, the long fine screw assembly through surface treatment and the use of engineering plastic nuts on the dust pollution environment is not strict
5: structure and weight-the use of a variety of structural styles and material nuts, so that the nut design structure and weight of light and easy to install
6: Design Load and Application-Long Precision CJ Precision Rolling Wire Rod Subassembly can be used in vertical and horizontal applications with high, medium and light loads
, A variety of patented anti-backlash nuts with automatic and manual adjustment are installed with threads or flanges. Provide an effective cost solution
7; Operating temperature: Ambient temperature and heat generated by friction are the main reasons for the damage of plastic nuts. According to the use environment and working load, under the condition of reasonable lubrication, the standard bronze use environment temperature is between 15 degrees and 350 degrees and the standard plastic nut is between 15 and 175 degrees. In high-load, high-temperature environment and high-speed sports applications, Evergreen Company recommend you to use bronze nuts or choose high-temperature engineering plastic nut materials (see Evergreen Technology-Nut Material for details) or call our application engineers to discuss.
8: Lubrication: Evergreen Company can use all kinds of wear-resistant, temperature-resistant, self-lubricating Evergreen maintenance-free long-life composite engineering plastic material nuts and screw rods with solid lubricating coating. Correct lubrication must be maintained to obtain satisfactory working life. Molybdenum disulfide screw special grease (spray) is recommend used in applications using long fine screw assemblies. The lead screw assembly needs to be lubricated often enough to keep a layer of lubricant on the lead screw. The interval of lubrication is determined according to the actual application.
Note: CJ composite engineering plastic material nut adopts self-lubricating and non-lubricating operation. To achieve maximum life, it is recommended to use an initial coating of lubricating grease.
9: Efficiency-except for particularly large lead. The efficiency increases as the lead increases. Despite the self-lubricating compound engineering plastic nut has a very low friction coefficient and excellent lubrication performance. However, the transmission efficiency of the ball screw is still higher than that of the evergreen CJ sliding screw. But evergreen high-speed screw high efficiency and good cost performance can replace the ball screw in a certain range

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No.4, Qiaodong Road, Toyota Town, Nanjing County, Zhangzhou City, Fujian Province