... Material:GCr15,GCr15SiMn 3.ISO9001 Standard 4.Low nosie Linear Bearings1. Our linear bearing with same quality as our sample. 2 ... under a very low coefficient of friction. Therefore, the linear motion bearings are appropriate for many mechanical equipments, automation ... wide range of application. At present, they are more widely used in the electronics, machinery, equipment, robots, tools, food ...