Item Type: Linear bearing Material: Bearing steel Model(optional): LM35LUU: Diameter: Approx. 52mm / 2.05in, Inner Diameter:Approx. 35mm / 1.38in, Thickness: Approx.70mm / 2.76in LM50LUU: Diameter: Approx.80mm / 3.15in, Inner Diameter: Approx. 50mm / 1.97in, Thickness: Approx. 100mm / 3.94in Features: Double-Sided Dust-Proof Rubber Seal: Prevent foreign matter from entering and prolongs service life. Adopt Nylon Retainer: Low motion inertia, low starting torque, lower noise and smoother operation. Uses: Suitable for industrial automation, aerospace, machine tools, engraving machines, manipulators and automobiles. 1、Made of durable bearing steel, the outer ring and steel ball are strengthened by heat treatment for increasing the life and load. 2、Supporting compact structure and easy installation, the ordinary linear bearing can be installed in any direction, and it can work accurately only by using the shaft as a support. Also, the mounting surface is easy to machine. 3、It is standardized and easy to replace. Due to the standardized size and high machining accuracy of linear bearings, each set of bearings is interchangeable and the wear-and-tear-resisting, which is easy to replace. 4、With high-tech polished surface, high smoothness and high brightness, such bearing is equipped with High practicality for long wear life. 5、Frictional and relatively stable, the linear bearing is in high precision and high rigidity, and it do not change with the rate of the bearing, which can obtain smooth linear motion with high sensitivity and high accuracy. 1 x Linear Bearing