Feature:1. Main Application: This linear bearing is a linear motion system for use with cylindrical shafts with infinite travel.2. Small Frictional Resistance, Smoothly Rotation: The bearing ball is in point contact with the shaft, the operating load is small. The steel ball rotates with minimal frictional resistance, resulting in a smoothly motion with high accuracy.3. Bearing Steel Material: Premium bearing steel is used. After special heat treatment process, the service life of the bearing is greatly increased. It can save costs for equipment that is difficult to disassemble and install with high requirements.4. Wide Application: This linear bearing is widely used in electronic machinery, power tools, sports equipment, medical machinery, packaging machinery, food machinery, printing machinery, etc.5. Ideal Replacement: This linear bearing with stable and accuracy performance, is an ideal replacement for the old and damaged parts.Specification:Item Type: Linear BearingMaterial: Bearing Steel, RubberQuantity: 2 PiecesInner Diameter: Approx. 30mm/1.18inOuter Diameter: Approx. 45mm/1.77inHeight: Approx. 64mm/2.52in.Package List:2 xLinear Bearing