About this item Model:LMH8UU Linear Roller Bearing. ID 8mm/0.315in; OD 15mm/0.591in;Length 24mm/0.945in; Flange short side length 21mm/0.827in; Installation aperture 3.4mm/0.134in;Dynamic load Cr 260N;Static load Cor 400N. Material: Linear motion bearing made of high-quality bearing steel, featuring high hardness, excellent wear resistance and strong impact resistance;Adopting high-frequency quenching process ensuring stable operation under high load and long service life High Performance: Four-rows steel balls make point contact with the shaft, minimizing friction Between the slide bushing and optical axis, for high-precision smooth movement; features smooth motion, low friction, low noise, and easy maintenance Double Seal Design: Equipped with rubber seals on both sides to block dust, water and other impurities, maintain internal lubricant performance, reduce wear, make linear motion modules suitable for dusty or humid environments Applications:Linear ball bearing suitable as 3D printing machine parts, CNC slide bushing, mechanical slides, linear modules;Widely used in linear motion systems of automated equipment,linear tables,electronic equipment, food and packaging machinery