1. Basic concept: Linear bearing is a linear motion system with high precision, low cost and low frictional 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. Since the bearing ball is in point contact with the shaft, the operating load is small. The steel ball rotates with minimal frictional resistance, so that high-precision and smooth motion can be obtained. 2. Structure 3. Working process The linear bearing is equipped with a steel ball cage in the outer ring. The cage is equipped with multiple balls. circular motion. 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. Fourth, classification: 1. According to the material, the 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 The linear bearing included in our catalog is a product with a shell bearing steel, a resin-lined cage, and no surface treatment; the linear bearing with a seat is the above ordinary linear bearing with an aluminum alloy seat outside. 2. According to the shape, it can be divided into open type and closed type; straight column type, single lining type, double lining type (extended type); single lining type with flange, double lining type with flange; flange type with cutting on both sides , middle cutting flange type, four-sided cutting flange type; heightened square with fixed seat (the material of the fixed seat is aluminum alloy, surface anodized), widened square with fixed seat, etc. 3. According to the series, the loquat linear bearing is divided into two series, namely LM and LME series. LM series are used in Asia, Southeast Asian countries, Japan, South Korea, China and so on. LME series are mostly used in Europe, America, Germany, Italy and other regions. The structural characteristics of the two series are roughly the same except for the different sizes and aperture tolerances. Example 1: LM 203242 UU OPLM means straight line first series standard 203242 means size structure Aperture outer diameter length UU means double seal structure OP means open type disc Order code: LMUUOP20 Example 2: LME 203245 UU AJLME means straight line second series standard 203245 Indicates size, structure, aperture, outer diameter, length, UU, double seal structure, AJ, adjustable clearance. Order code: LMUUAJ20 5. Example of use 1, straight column type 2, flanged type 3, embedded flange type (linear bearings need to withstand load) 4. Intermediate flange type (when the stroke becomes longer, it is better to use extended bearings for support) 5. Linear bearing with seat 6. Matching of linear bearing with seat and guide rail for guide shaft Previous page 12 Next page