Item Type: Linear-Motion Bearing _x000D_Material: Bearing steel_x000D_Optional Style: LM25LUU, LM20LUU, LM16LUU_x000D_LM25LUU: _x000D_Inner Diameter: Approx. 25mm / 1in _x000D_Diameter: Approx. 40mm / 1.6in _x000D_Height: Approx. 111mm / 4.4in_x000D_LM20LUU: _x000D_Inner Diameter: Approx. 20mm / 0.8in_x000D_Diameter: Approx. 32mm / 1.3in_x000D_Height: Approx. 80mm / 3.1in_x000D_LM16LUU: _x000D_Inner Diameter: Approx. 16mm / 0.6in_x000D_Diameter: Approx. 28mm / 1.1in_x000D_Height: Approx. 70mm / 2.8in 1Adopt double-sided dust-proof rubber sealing to prevent foreign matter from entering and prolong service life 2Adopt nylon retainer, low motion inertia, low starting torsion, less noise and smoother operation 3High-tech polished surface with high smoothness and high brightness 4Suitable for industrial automation, aerospace, machine tools, engraving machines, robots and automobiles 5The linear bearings are frictional and relatively stable, do not change with the speed of the bearing, and can obtain smooth linear motion with high sensitivity and high accuracy. 6Adopt bearing steel material, durable to use. 7Outer ring and steel ball are made of bearing steel material, strengthened by heat treatment, increasing life and load 8Compact structure, easy to install, ordinary linear bearings can be installed in any direction, using the shaft as a support for precise work, and the mounting surface is easy to machine1 xLinear-Motion Bearing