Linear Motion Ball Slide Block Bearing LM16 LM16UU Mounted Linear Bearings for Fitness Equipment The LM16UU is a precision linear ball bearing engineered for smooth, low-friction linear motion in compact mechanical assemblies, widely used in automation equipment sliding tables, 3D printer XYZ axes, small-scale CNC machine tools, and medical device linear mechanisms. Model breakdown: "LM" denotes the standard linear ball bearing series (optimized for universal linear motion