Linear Bearings CNC Linear Slide Ball Bearing L35uu For Linear Otion Achine 70mm Width Linear Bushing LM35UU AJ Linear Bushing Ball Bearing 35mm × 52mm × 70mm, LM35UU AJ Linear Bush Bearing LM30UU For CNC Machine. Linear bearing is a low-cost linear motion system used with the cylindrical shaft for unlimited travel About this item CNC builders and 3D printing enthusiasts, these LM35UU linear bearings are workhorses for smooth linear motion! You get 2 bearings in the pack, each with 35mm bore diameter, 52mm outer diameter, and 70mm length - perfect standard sizes for many DIY and professional applications. Made from quality bearing steel with double-side rubber seals that keep contaminants out while... Bearing Steel Material: Using excellent bearing steel, with special heat treatment process, has high hardness, wear and corrosion resistance, and long service life.