In the bearing, the production cost of the linear bearing is relatively low, but it is mainly used in a variety of electronic equipment, machinery, medical and other special machinery industries. There are many types of linear bearings , different types will have different specifications and roles. Linear bearings are lightweight, corrosion-resistant, interchangeable, and low-cost. They are widely used in various types of machines, and they are capable of maximizing performance and achieving the most economical and automated economic benefits. What do you know about the linear axis? What are the specifications of linear bearing specifications? What is the linear bearing installation process? Let's go understand it together.
What is the linear bearing
The metal linear bearing is a linear motion system that is produced at a low cost and is mainly used for the infinite stroke and the cylindrical shaft. The plastic linear bearing is a self-lubricating linear motion system. The biggest difference between the two types of linear bearings is that the metal linear bearings are rolling friction. The bearing is in point contact with the cylindrical shaft, so it is suitable for low-load high-speed movement. The plastic linear bearing is sliding friction, and the bearing is in surface contact with the cylindrical shaft. , It is suitable for high speed and low speed movement.
Linear bearing classification
1, standard type, clearance adjustment type linear bearings, open linear bearings, extended linear bearings, universal linear bearings.
2. Flange linear bearings can be divided into: round flange type, method blue type, oval flange type, guide round flange type, guide method blue type, guide elliptical flange type, and extended round flange type.
Linear bearing specifications
Linear bearing specifications are LM and LME, LIN-11 and LIN-12, KH several series, of which LM series for Asia, Southeast Asia, the metric size as the standard, with the linear axis diameter tolerance is generally h7. LME series are mostly used in Europe, the United States, Germany, Italy and other regions, the British standard size, but also metric size, with the linear axis diameter tolerance is generally g6. LIN-11 stands for the European standard plastic linear bearing, which is installed by limiting springs, while the LIN-12 series is a narrow design. It directly uses its outer diameter to fit tightly with the mounting seat hole, mainly to save installation space.
Linear bearing model size specifications
Linear bearings are linear motion systems that are produced at low cost and are used with infinite strokes in conjunction with cylindrical shafts. Linear bearings are divided into two major series of LM and LME according to the specification system. LM series are used in Asia, and LME series are mostly used in Europe.
Except for different sizes and different hole diameter tolerances, the structure is roughly the same.
Linear bearing installation
1. Before installation of the linear bearing, it is necessary to remove the flash, dirt, and surface flaws of the mechanical mounting surface. The linear bearing is coated with anti-rust oil. Before installation, clean the reference surface with cleaning oil. After the anti-rust oil is removed from the reference surface, it is apt to rust. It is recommended to use a lubricating oil to apply a low-viscosity spindle.
2. Lightly place the bearing on the bed with a linear bearing, and use the side fixing screws or other fixing fixtures to gently fit the rails with the side mounting surface. Before installation and use, make sure that the screw holes are consistent. Assume that the base machining holes do not match and forcibly tighten the bolts, which will greatly affect the combination accuracy and the use of quality.
3. The positioning screw of the linear bearing is tightened from the center to both sides in order, so that the track is attached to the vertical mounting surface, and a stable accuracy can be obtained by pressing from the central position to both ends. After the vertical reference surface is slightly tightened, the locking force of the lateral reference surface is strengthened so that the linear bearing can be reliably attached to the lateral reference surface.
4. Use a torque wrench to tighten the tightening torque according to various materials and slowly tighten the positioning screw of the linear bearing slide.
5. Use the same installation method to install the secondary rails and install the sliders on the main rail and the secondary rails individually. Note that after the linear slides are installed on the carriage, many follow-up accessories cannot be installed due to the limited installation space. The necessary accessories must be installed at this stage.
6. Place the moving platform gently on the slide bearing of the linear bearing main and auxiliary rails, and then tighten the lateral tightening screws on the moving platform, and complete the positioning after installation.
Editor's summary: The above is a description of the linear bearing installation linear bearing model size specification table, hope to help meet the needs of friends! For more information, please continue to follow our website. Follow-up will present more exciting content.
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