Linear bearings are lightweight, corrosion-resistant, interchangeable, and low-cost. They are widely used in a variety of machine configurations to maximize performance and achieve maximum economic benefits of labor saving and automation. So what are the uses of linear bearings? What is the specification and installation of linear bearings? Let's get to know each other.
Linear bearing use
Linear bearings are increasingly used in precision equipment such as electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, instruments, robots, tool machinery, CNC machine tools, automobiles and digital three-dimensional coordinate measuring equipment. Or in the special machinery industry.
Linear bearing specifications
Linear bearings are available in LM and LME, LIN-11 and LIN-12, KH series. The LM series is used in Asia and Southeast Asia. The standard size of the linear axis is h7. The LME series is mostly used in Europe, America, Germany, Italy and other regions. It is based on the British size and has a metric size. The tolerance of the linear axis is generally g6. LIN-11 stands for European standard plastic linear bearing, which is mounted by circlip limit. The LIN-12 series is a narrow design. It is directly mounted with the outer diameter of the mounting hole, mainly to save installation space.
Linear bearing installation
1. Before installing the linear bearing, the burrs, dirt and surface scratches on the mechanical mounting surface must be removed. The linear bearing is coated with anti-rust oil. Before installation, please wash the reference surface with cleaning oil and then install it. Usually, the reference surface is easy to rust after removing the anti-rust oil. It is recommended to apply the lubricating oil to the spindle with low viscosity.
2. Place the linear bearing gently on the bed, and use the side fixing screws or other fixing fixtures to make the wire rail and the side mounting surface lightly fit. Before installation, make sure that the screw holes are in agreement. If the base machining holes are not matched and the bolts are forcibly locked, the combination accuracy and quality of use will be greatly affected.
3. Screw the positioning screws of the linear bearing from the center to the sides in order, so that the rail fits the vertical mounting surface, and the tension from the center position to the both ends can obtain a more stable precision. When the vertical reference surface is slightly tightened, the locking force of the lateral reference surface is strengthened, so that the linear bearing can be surely fitted to the lateral reference surface.
4. Use a torque wrench to tighten the positioning screws of the linear bearing slides slowly according to the various materials.
5. Install the sub-rails using the same installation method, and install the slides to the main rails and sub-rails individually. Note that after the slider is installed with the linear slide rail, many subsequent accessories cannot be installed due to limited installation space, and the required accessories must be installed at this stage.
6. Gently place the moving platform on the slide of the main rail and the secondary rail of the linear bearing, and then lock the lateral tensioning screws on the moving platform.
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