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4、Linear bearing installation steps
Linear bearings are one of the most widely used parts of modern machine tools and are used in many industries. However, many manufacturers have bought linear bearings, but they do not know how to install them. Let's take a look at the installation steps for linear bearings.
1. Before installing the linear bearing, the linear bearing needs to be cleaned first, usually the burrs, dirt and surface scratches on the mechanical mounting surface of the bearing. Normal linear bearings are coated with anti-rust oil. Washing oil is required before installation. However, since the bearing is prone to rust after removing the anti-rust oil, it is necessary to apply a lubricating oil to the spindle with low viscosity.
2. Place the linear bearing gently on the bed, and fix the wire rail to the side mounting surface with fixing screws or other fixing tools. Check whether the screw holes are in agreement before installation.
3. Tighten the positioning screws of the linear bearing in order from the middle to the two sides, and the rail is attached to the vertical mounting surface.
4. Use a wrench to tighten the torque of the components one by one according to the material, and slowly tighten the positioning screws of the linear bearing.
5. Install the secondary rails in the same way and install the individual rails onto the main and secondary rails.
6. Gently place the mobile platform onto the carriage and then tighten the side tensioning screws on the mobile platform. After installing the side tightening screws, the linear bearing installation is completed.
6、What should I do if the linear bearing fails during use?
How to eliminate the fault of the linear bearing during use.
First, through the state of the linear bearing lubricant identification
First, the lubricant is sampled and analyzed, and it is judged whether or not the degree of contamination is mixed with foreign matter or metal powder. Lubricants can be added.
Second, through the working temperature of the bearing to identify the method is limited to use in the case of operating conditions do not change. For this purpose, continuous recording of the temperature must be carried out. In the event of a fault, the temperature may be too high to accelerate the loss of the bearing, and attention should be paid to cooling.
5、Three advantages of linear flange bearings
Linear flange bearing is a kind of flange bearing. Although it has certain differences with other types of flanged bearings in terms of specific structure, it still has many similarities with other flanged bearings from the overall point of view. In particular, it can have the following three advantages, like other types of flanged bearings, and can clearly show these advantages in use:
Advantage 1: Simple. The linear flange bearing is a flanged bearing on the outer wheel. The presence of this flange makes the axial positioning of the bearing simple.
Advantage 2: Economy. The installation of linear flange bearings does not require a bearing housing, so that when using such a bearing, there is no need to purchase a bearing housing, and the application of the bearing is relatively more economical.
Advantage 3: light weight. In order to obtain low friction torque, high rigidity and good rotation accuracy of bearings, manufacturers generally use small outer diameter steel balls in linear flange bearings. Together with the use of hollow shafts, the structure of bearings can be lightweight. This will have the advantage of being light in weight.
Simple, economical and lightweight, it is the three major advantages of linear flanged bearings. With these advantages, the bearings can be easily operated, efficiently installed and economically applied.
7、What are the common faults in linear guide installation applications?
With the increasing requirements for speed, accuracy and reliability of high-performance CNC machine tools, how to reduce the impact of impact loads at high speeds and reduce errors during walking, thus maintaining high precision has become an urgent problem to be solved. As a commonly used support component for modern CNC machine tools, linear rolling guides have the advantages of compact structure, responsiveness, good load bearing performance and easy installation. They are used more and more widely in machining centers, CNC machine tools and other industries, and their performance on CNC machine tools. Overall performance has a very important impact.
What are the common faults in linear guide installation applications? The Suzhou Samik analysis has the following points:
1. The machine tool has been used for a long time, and the level of the foundation and the bed has changed, so that the load per unit area of ​​the linear guide is too large;
2. long-term processing of short workpieces or subjected to excessive concentration of loads, so that the linear guides are partially worn;
3. The linear guide rail is poorly lubricated;
4. poor maintenance of the machine tool, falling into the linear guide rails, etc.
5. the processing surface is not flat at the knife:
6. Straight line straightness is out of tolerance;
7. the machine tool level is poor, the linear guide is bent.
1、Linear bearing classification

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. But how is he classified?

1. Linear bearing standard series, gap adjustment type linear bearing, open type linear bearing, extended linear bearing, universal linear bearing, KH series linear bearing, ST series linear bearing.
2. Flange type linear bearings can be divided into: round flange type, method blue type, elliptical flange type, guide round flange type, guide method blue type, guide elliptical flange type, extended round flange type.
3. Linear bearing box type slider. Standard, short, extended.

2、Linear bearing characteristics and basic structure

Linear bearings are linear motion systems used for linear strokes in conjunction with cylindrical shafts. Linear bearings have low friction and are relatively stable, do not change with bearing speed, and can achieve high-precision smooth linear motion.
Linear bearing consumption also has its limitations. The most important thing is that the bearing impact load capacity is poor, and the bearing capacity is also poor. Secondly, the linear bearing has large vibration and noise during high-speed motion. Linear bearings are widely used in sliding parts of industrial machinery such as precision machine tools, textile machinery, food packaging machinery, and printing machinery.
1. Standard The standard linear bearing has a high-precision cylindrical surface and a high coaxiality with the linear bearing. It can be directly installed in the bearing. The two ends are fixed by a retaining ring or a gland. The installation is simple. Convenient and has a wide range of applications.
2. Gap type The gap type bearing is the same size as the standard type bearing. When the sleeve is opened with an axial groove, it can be mounted on the bearing housing with adjustable inner diameter, so that it is easy to adjust the gap between the bearing and the shaft. This type of bearing can be adjusted to achieve a small radial clearance.
3. Open type The outer ring of the open type bearing has an opening corresponding to the width of a row of steel ball balls. This type of bearing can be used to prevent the shaft from being bent on the support rod or the support. The clearance of such bearings is also easy to adjust.
3、Linear bearing structure and use
The LM type is used in conjunction with a cylindrical LM optical axis to perform an infinite linear motion system. The load-bearing steel ball is in point contact with the LM optical axis, and the allowable load is small, but high precision and rapid linear motion can be achieved with minimum frictional resistance. The bearing sleeve is made of steel and is quenched to grind the inner and outer surfaces.
Linear bearings are used in a wide range of applications, including office equipment and peripherals, precision instruments such as various measuring instruments, automatic recording devices and digital 3D measuring instruments; and multi-axis drilling machines, punching and tool grinding machines, automatic gas cutting equipment, Printing machinery, food packaging machines and other industries.
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