Linear bearing is a kind of linear motion system with high precision, low cost and low friction resistance. Linear bearings are used in combination with guide shafts, and use the rolling motion of balls to achieve a linear motion system that achieves infinite linear motion. Linear bearing structure Linear bearing working process The linear bearing is equipped with a steel ball cage in the outer ring, the cage is equipped with a plurality of balls, and the balls move in an infinite loop. The two ends of the cage are fixed with gasket retaining rings, and there are notched windows in the direction of the linear track where each steel ball is under force. relative movement. Therefore, linear ball bearings are the most suitable bearings for mechanical equipment, automation equipment, and energy-saving equipment. Classification of linear bearings 1. According to material: shell: stainless steel, bearing steel, aluminum alloy (linear bearing with seat); cage: resin, stainless steel, bearing steel; surface treatment: chrome-plated, nickel-plated, surface anodized (linear bearing external mounts) and so on. 2. Divided by shape: 3. Divided by series: Linear bearings are divided into two series by series, namely LM and LME series. The LM series are used in Asia, Southeast Asian countries, Japan, Korea, China, etc.; the LME series are mostly used in Europe, the United States, Germany, Italy and other regions; the structural characteristics of the two series are roughly the same except for different sizes and different aperture tolerances. Linear bearing code Standard linear bearing code Flanged linear bearing code Linear bearing application Electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, instruments, robots, tool machinery, CNC machine tools, automotive and digital 3D coordinate measuring equipment and other precision equipment or special machinery industries. Tolerance of linear bearing 1. Use with linear bearing: it is recommended to use g6 tolerance guide shaft (ordinary clearance fit); 2. Tolerance range of linear bearing and guide shaft (g6 tolerance); Oil, if lubricated with grease, first use kerosene or organic solvent to remove the anti-corrosion oil, air dry and then add grease. 2. Oil lubrication If oil is used for lubrication, it is not necessary to remove the anti-corrosion oil; the lubricating oil can be supplied from the oil supply pipe or from the oil hole of the axial bearing shell. Oil lubrication is not suitable for non-porous sealed bearings because the seals will scrape off the oil. Linear bearing brand disclaimer: The graphic material comes from the Internet, and the copyright belongs to the original author. If there is any infringement, please contact to delete it.