Linear guide rails into square rails and round types. Circular rail is the earliest product linear axis Which is good, but poor accuracy compared to square rails. However, the circular rail is ideal for vertical movement of heavy loads of occasions. Which specific use of linear guides should be decided according to the actual needs of the application guide. Square rail design inherent in the various grinding requirements lead to the initial cost is several times round guide rail, but with the performance of the linear guide rail manufacturing technology is superior to the circular rail. Wanted linear axis in general, square rails having a higher load capacity, rigidity and precision and longer life. Ball bearings to accommodate a variety of uses linear axis guide, provides a wide range of standardized products. Widely used in machine tools, ball circulation methods are circulating duct type, circulator type, cover type. Preloading way positioning preload (double nut way preload-bit mode), constant pressure preload. May be appropriately selected according to the type of use. There are high-precision grinding screw precision ball screws (accuracy divided from CO-C7 of six levels) and by high-precision cold-rolled ball screw bearings molding (precision into the C7-C10 3 grades) Ball bearings accumulated over the years in the technology-based products, from materials, heat outside the grounds, manufacture, inspection to shipment, are based on strict quality assurance system to be managed, and therefore has high reliability. Buying linear axis, linear axis Hangzhou, Cheng Feng factory direct bearing provided by Lishui Bearing Co., Ltd. Cheng Feng. Lishui Cheng Feng Bearing Co. (susan1125.b2b.hc360.com/) strong, credible, Zhejiang Jinhua sliding bearing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Feng Cheng bearing into the brilliant and you work for a better future!