QuZhou LongYang Hardware & Electrical Co., Ltd.

18/09/2023

Basic steps for bearing installation:

1. Cleaning: Before installation, make sure the bearing seat and bearing itself are clean and free of debris or dirt.

2. Positioning: Position the bearing correctly to ensure that the inner ring, outer ring and rolling elements are aligned with the shaft and bearing seat.

3. Installation: Use appropriate tools and methods to assemble the bearing onto the shaft or into the bearing seat, ensuring that the bearing can rotate freely but not loosely.

4. Adjust lubrication: After the bearing is installed, ensure that the lubrication system is working properly to ensure that the bearing is always lubricated.

5. Inspection: Inspect the bearing after installation to ensure that everything is normal. This includes rotational testing, lubrication system inspections, etc.

6. Monitoring: Regularly monitor the status of the bearing during operation, including temperature, vibration and noise, etc., to find and solve problems in a timely manner.
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10/09/2023

The radial clearance of the bearing is not as small as possible.

Not all special bearings require minimum working clearance, and the appropriate clearance must be selected according to conditions. The radial clearance of rolling bearings is divided into 5 groups, and the clearance values are from small to large, among which group 0 is the standard clearance. The basic radial clearance group is suitable for general operating conditions, normal temperatures and commonly used interference fits; bearings working under special conditions such as high temperature, high speed, low noise, and low friction should use larger radial clearances; For bearings used in precision spindles, a smaller radial clearance should be used; for roller bearings, a smaller working clearance can be maintained. In addition, there is no clearance for separate bearings; finally, the working clearance of the bearing after installation is smaller than the original clearance before installation, because the bearing has to withstand a certain load rotation, and there are also friction caused by the bearing fit and load. The amount of elastic deformation.

The size of the radial clearance of a tapered bore TG bearing depends on the tightness of the adapter sleeve or withdrawal sleeve, the inner ring of the bearing and the shaft. If the bearing is directly installed on the shaft head with a tapered surface, the radial clearance will The size of the gap depends on the tightness of the fit between the inner hole of the bearing and the shaft. In order to ensure that the tapered bore spherical roller bearing can be used with the correct radial working clearance, the clearance before and after installation must be measured. Generally, a feeler gauge can be used to measure the gap between the roller and the inner ring or outer ring. Only when the bearing is small or the space is narrow, the axial movement is used to measure the degree of fit between the bearing and the shaft. The internal radial clearance of the tapered bore self-aligning ball bearing is smaller than that of the tapered bore spherical roller bearing, so more attention should be paid during installation and use. When installing a bearing, the tightening angle or axial displacement can be used to measure the fit between the bearing and the shaft. Place the bearing on the adapter sleeve and ensure that its inner hole is in contact with the adapter sleeve over the entire circumference. Tighten the back nut to the specified angle and the bearing will be pressed against the conical surface of the adapter sleeve. After installation Bearing clearance should be checked again.
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05/09/2023

Bearing clearance refers to the gap or gap inside the bearing, also known as internal clearance. This gap is the gap inside the bearing that allows various parts of the bearing to move relative to each other during operation to accommodate factors such as thermal expansion and contraction, load changes, and axial torque. Bearing clearance is critical to the normal operation of bearings, it has the following important functions:

1. Thermal expansion and contraction: During the working process of the bearing, bearing parts will expand due to friction and heat. Bearing clearance allows parts to expand during thermal expansion, avoiding excessive internal stresses.

2. Load change: When the bearing bears different loads, the relative motion between the bearing parts will change. Bearing clearance can ensure that it can still maintain normal working conditions under different load conditions.

3. Lubrication: Bearing clearance also affects the formation and maintenance of the lubricating oil film in the bearing. Proper bearing clearance ensures that lubricating oil can enter the interior of the bearing, reducing friction and wear.

4. Axial torque: In some applications, bearing clearance can also affect the transmission and tolerance of axial torque.

Bearing clearance is often an important parameter to be adjusted to specific application requirements during the design and manufacture of bearings. Different types of bearings (such as deep groove ball bearings, tapered roller bearings, plain bearings, etc.) and different applications may require different levels of bearing clearance. Bearing clearance is usually measured and specified in micrometers (μm) or millimeters (mm). Selecting the proper bearing setting is critical to ensuring the performance and life of the bearing in a given application.

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24/08/2023

Bearing technology and industrial progress: the key to supporting modern machinery manufacturing

Summary:
As an indispensable part of mechanical devices, bearings have played a vital role in the development of modern industry. This paper will provide an in-depth look at the evolution and application of bearing technologies and their key role in driving innovation and progress across industries.

introduction:
With the continuous advancement of science and technology, the field of mechanical manufacturing has achieved tremendous development in the past few decades. In this process, bearing technology serves as a key supporting structure, providing stable operation and efficient performance for various mechanical equipment. This paper will introduce the basic principle of bearing, its development history and its wide application in modern industry.

The basic principle and classification of bearings:
A bearing is a device used to reduce friction in mechanical motion by supporting and guiding a rotating or reciprocating shaft. According to its working principle and structure, bearings can be divided into rolling bearings and sliding bearings. Rolling bearings roll between the inner and outer rings through balls or rollers, which reduces friction and is suitable for scenarios requiring high speed and high precision. Sliding bearings, on the other hand, use lubricant to form a lubricating film between sliding surfaces, which is suitable for high loads and harsh environments.

Evolution of bearing technology:
With the continuous evolution of industrial technology, bearing technology is also constantly innovating. From the earliest simple sliding bearings to modern high-precision ceramic ball bearings, the development of technology has made bearings play an indispensable role in all walks of life. In recent years, the application of nanotechnology has made the lubrication effect of the bearing surface better, and the progress of material science has also provided the possibility to improve the durability and performance of the bearing.

Application of bearings in industry:
Bearings are widely used in various fields, such as the automotive industry, aerospace, energy, machinery manufacturing, etc. In the automotive industry, bearings ensure the high-efficiency operation of the engine and the smooth running of the vehicle; in the aerospace field, bearings withstand the challenges brought about by the high-speed movement of aircraft and extreme temperature changes; in the energy field, bearings are used in wind power generators and turbines And other equipment to ensure the reliable output of energy.

in conclusion:
The continuous progress and application of bearing technology has laid a solid foundation for the development of modern industry. Its key role in various industries enables mechanical devices to operate more efficiently and stably, and promotes innovation and progress in industry. With the continuous development of science and technology, we have reason to believe that bearing technology will continue to play an important role and bring more breakthroughs and opportunities to the industry.

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WhatsApp+86 136 2570 7477

18/08/2023

15/08/2023

The accuracy of bearings is mainly divided into dimensional accuracy and rotational accuracy. The accuracy grades have been standardized and are divided into five grades: P0, P6, P5, P4, and P2.

The accuracy increases sequentially from grade 0, and grade 0 is sufficient for general purposes, but when used in special conditions or occasions, a precision of grade 5 or higher is required.

The old code name of China Bearing Precision Grade Code

The standards formulated by various countries are based on ISO standards, generally consistent with ISO standards, and some are stricter than ISO standards. Accuracy is divided into dimensional accuracy and rotational accuracy. Divided into grade 0, grade 6X, grade 6, grade 5, grade 4, grade 2.

The old code standards of China Bearings are: Grade G (Grade 0), Grade E (Grade 6), Grade D (Grade 5), Grade C (Grade 4), and Grade B (Grade 2). The current code generally adopts the German DIN standard.

P0 level (0 level), P6 level (6 level), P5 level (5 level), P4 level (4 level), P2 level (2 level).

The general standard grade P0 is omitted in the bearing model, and only the P6 grade or above, the grade code appears in the bearing model.

For example: 6205 and 6205/P5, the precision level of 6205 is P0 level, but it is omitted. This gives people the impression that P0 is a non-precision grade bearing.

In addition, the bearings of various precisions are not only different in processing technology, but also in value.
Quzhou Longyang Hardware Electromechanical Co., Ltd. is a manufacturer of high-quality bearings. If you need to know more, please visit the website or add the following WhatsApp number:
https://longyanghardware.com
WhatsApp +86 136 2570 7477