Requirements for SKF bearings for machine tool spindles

Mina Electromechanical! Mina Electromechanical is a leading and selling world-renowned brand bearing company. Specializing in the import bearings of world-renowned brands.

Shanghai Mina Electromechanical is located in Shanghai, the company maintains a good bearing import business, with the advantages of independent import sales, has become a relatively large and influential import bearing sales center in Shanghai, and has become a long-term leader in dozens of large state-owned enterprises. Since its establishment, the company has relied on superior geographical advantages, based on the three norths, radiating the whole country, forming a stable sales network, providing high-quality bearings for many enterprises!

Requirements for SKF bearings for machine tool spindles. SKF bearings are used in a wide range of applications for machine tool bearings. Machine tool spindle has certain technical requirements for SKF bearings The following content is analyzed and introduced:

1.Stiffness and vibration resistance In order to ensure the machining quality of the machine tool, the spindle system must be made to have sufficient rigidity, otherwise there will be a large replay error or even flutter. Vibration resistance refers to the ability to resist forced vibrations and self-excited vibrations.

The vibration resistance of the spindle assembly depends on the stiffness and damping of the spindle and bearings. The use of preloaded rolling bearings can effectively increase the stiffness of the spindle system.

2.With the development of science and technology, the spindle speed of machine tools is getting higher and higher, and the speed range is getting larger and larger, so the requirements for the stability of high-speed operation of bearings are getting higher and higher. The temperature rise of the spindle bearing of the machine tool is an important factor limiting the speed of the bearing.

In general, the correct selection of bearing type, tolerance level, configuration method, clearance (preload) size, lubricant and lubrication method, etc., can improve the high-speed performance of rolling bearings to a certain extent.

3.Life and bearing capacity For general machine tools, the life of the spindle assembly mainly refers to the service life of maintaining the accuracy of the spindle, therefore, the accuracy retention performance of the bearing is required to meet the requirements of the life of the spindle assembly. For heavy-duty machines or high-power cutting machines, the bearing capacity should be considered first.

It is mainly used for combination bearings.

2-row, 3-row, 4-row combination bearings.

Models are 72, 70, 79, series of angular contact bearings.

Tianjin Tengdaxin Electromechanical.

Need to find me.

What is the shaft diameter, whether the shaft is vertical or horizontal, is there more specific information, such as the type of machine?

Paired angular contact + double row cylindrical rollers.

Most of them adopt an angular contact bearing combination design, and the two angular contact ball bearings are assembled back to back. Because angular contact bearings can withstand both radial and axial loads in one direction, the permissible ultimate speed is high.

Angular contact ball bearings.

Tapered roller bearings.

Thrust ball bearings.

If the spindle speed reaches 60,000r min, or the spindle rotation accuracy is there, the aerostatic bearing is used.

The lubrication of the main bearing of the machine tool is mainly thin oil lubrication. The main requirements for lubricating oil are that the viscosity should be appropriate, and the oil should be sufficient.

Spindle oil and bearing grease. Shenyang Mobil Hongao Trading.

A lot of questions become very complicated once asked upside down. One is that the designer selects the relevant model and size in the design manual according to the needs of their own design performance. The advantages and disadvantages of each of them are clear at a glance in the mechanical design manual, and it is impossible to describe them clearly here.

In terms of size, there are 3 size parameters: inner diameter, outer diameter, and thickness;

The types are: ordinary precision type, precision type, ultra-precision type;

Uses are: ordinary, high-speed, heat-resistant, dust-proof, heavy-duty, etc.;

This problem is very complicated, there are several types of bearings, according to the structure, according to the force, according to the use, according to the accuracy. Generally speaking, ordinary machinery with ordinary precision bearings, machinery with special requirements to consider the choice of bearings, to meet the requirements of working performance is the first, followed by the service life ** maintenance, etc.

There are several types of bearings, according to the structure, according to the force, according to the use, according to the accuracy. Generally speaking, ordinary machinery with ordinary precision bearings, machinery with special requirements to consider the choice of bearings, to meet the requirements of working performance is the first, followed by the service life ** maintenance, etc.

In terms of size, there are 3 size parameters: inner diameter, outer diameter, and thickness;

The types are: ordinary precision type, precision type, ultra-precision type;

Uses are: ordinary, high-speed, heat-resistant, dust-proof, heavy-duty, etc.;

Determine 3 dimensional parameters: inner diameter, outer diameter, thickness; Check the corresponding model in the table, or buy it directly according to these 3 parameters to the place where the bearing is sold.

The front bearing, like the rear bearing, plays the role of supporting the balance at ultra-high speeds