How does slewing bearing work?

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Slewing bearings usually consist of a rotating ring with an inner ring and several outer rings. This kind of bearing is characterized by a large contact area, allowing it to maintain high rotation accuracy and stability while bearing large loads. In addition, slew bearings are usually equipped with lubrication systems and sealing devices to ensure that the inside of the bearing is protected from external contamination and moisture.

  1. Working principle of slewing bearings

1.The motion of the rotating ring
The rotating ring in the slew bearing maintains close contact with the outer ring through the balls or rollers inside the bearing, thereby forming continuous friction. These balls or rollers support the rotating ring and keep it stable as it rotates under the power of an external drive.

2. load transfer
The design of slew bearings allows load transfer in all directions. This means that no matter which direction the load comes from, the slew bearing is able to effectively distribute it to various contact points, ensuring uniform load distribution. This characteristic makes slew bearings ideal for many industrial applications.

3. Accuracy maintained
Because slew bearings have large contact areas and high rotational accuracy, they are generally able to remain stable at high rotational speeds. In addition, by precisely controlling the lubrication system and adjusting the sealing device, it is also possible to ensure that the bearing maintains its accuracy and stability during long-term use.

2. Application fields of slewing bearings

Slewing bearings are widely used in various industrial fields due to their excellent performance and adaptability, such as engineering machinery, transportation, petrochemical industry, aerospace, etc. They play a vital role in these applications, supporting rotating parts, transmitting loads, maintaining accuracy and stability, etc.

3.Performance characteristics of slewing bearings

1. High load-bearing capacity: Due to its large contact area, slew plate bearings can withstand larger loads and are suitable for applications requiring high load-bearing capacity.

2. High precision: Due to their sophisticated design, slew plate bearings are usually able to maintain high rotation accuracy and stability, and are suitable for applications requiring high precision.

3. Strong adaptability: Slewing bearings can work in various harsh and extreme environmental conditions, such as high temperature, low temperature, high humidity and corrosive substances.

4. Easy to maintain: Slew plate bearings are usually equipped with lubrication systems and sealing devices for easy maintenance and care.

Slewing bearings are a type of bearing with special structural and design features. Their working principle is based on friction support between the rotating ring and the outer ring. Slewing bearings play a vital role in various industrial fields by precisely controlling load transfer, maintaining accuracy and stability, and other functions.

What is the difference between rolling bearings and slewing bearings?

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Rolling bearings and slew bearings are both types of bearings. They have many similarities in application, but there are also some obvious differences between them. Rolling bearing is a mechanical component that bears load during rolling motion and is widely used in various mechanical equipment. A slew bearing is a special type of bearing with a combined radial and axial load capacity, often used to support rotating shafts or rotary-linear motion hybrids. The two mainly differ in the following aspects:

  1. Structural characteristics

The structural features of rolling bearings include balls, inner rings, outer rings, cages and other components. The inner ring is closely matched with the shaft, and the outer ring is matched with the bearing seat. The cage separates the balls and distributes them evenly. Rolling bearings have the advantages of small friction coefficient, low vibration and noise, but they also have maintenance requirements.

The structural features of slew bearings include outer rings, inner rings, rolling elements (balls or rollers) and cages. The outer ring can be an integral structure or a segmented structure, and the inner ring is closely matched with the shaft. Slewing bearings can bear both radial and axial loads, and have high rotation accuracy and axial load-bearing capacity. Slewing bearings have a long service life and are suitable for high-speed, high-precision mechanical equipment.

  1. Application scope

The application range of rolling bearings is very wide, involving almost all types of mechanical equipment, such as machine tools, automobiles, aircraft, ships, etc. There are many types of rolling bearings, and the appropriate bearing type can be selected according to different loads, speeds, accuracy and speed ranges.

The application range of slew bearings is relatively narrow and is mainly used in robotic arms, packaging machinery, machine tool equipment, plastic machinery, steel rolling equipment and other fields. The characteristics of high precision, high rigidity and high load-bearing capacity of slew bearings make them an indispensable part of these high-precision mechanical equipment.

  1. Load characteristics

The load properties of rolling bearings are generally radial load or axial load, but some special types of rolling bearings such as angular contact ball bearings can withstand combined radial and axial loads. The nature of the load depends on the bearing’s structural design and application.

The load properties of slew plate bearings are mixed radial and axial loads. This load characteristic gives slew plate bearings unique advantages in supporting rotating shafts or rotation-linear motion hybrids.

  1. Rotation accuracy

The rotation accuracy of rolling bearings depends on their manufacturing quality, the function of the cage, and the maintenance during use. Under continuous load, the rotation accuracy of rolling bearings is prone to change.

The rotation accuracy of the turntable bearing is relatively high, and it can maintain high accuracy even under high-speed rotation. This is because the structural design of the slew bearing helps reduce friction and vibration, thereby maintaining stable rotation accuracy.

There are obvious differences between rolling bearings and slew bearings in terms of structural characteristics, load characteristics, and rotation accuracy. Rolling bearings are suitable for various mechanical equipment and have the advantages of small friction coefficient, low vibration and noise, but they require regular maintenance. Slewing bearings are suitable for high-precision mechanical equipment that supports rotating shafts or rotation-linear motion hybrids. They have the characteristics of high precision, high rigidity and high load-bearing capacity. When selecting bearings, the most suitable bearing type should be selected based on the characteristics and requirements of the specific application.

Things to note when choosing bearing lubricant

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Bearing lubricant analysis is crucial to maintaining normal operation of bearings. Its main functions are as follows:

  1. Reduce friction and wear: Lubricating oil generates an oil film on the bearing surface, reducing friction and wear between the bearing, the shaft and the bearing seat, thereby extending the bearing life.
  2. Prevent rust and corrosion: Lubricating oil can prevent the bearing surface from being eroded by water, gas and other substances, and avoid rust and damage problems.
  3. Give full play to heat dissipation efficiency: In high-speed or high-temperature environments, lubricating oil effectively takes away the heat generated by the bearing, reduces the operating temperature of the bearing, and improves its working performance and stability.
  4. Has a cleaning function: Lubricating oil helps clean dirt and impurities on the bearing surface, prevents them from invading the bearing structure, and protects its normal operation.
  5. It also has sealing and waterproof functions: The lubricating oil builds a sealing area between the bearings, blocking external clutter and moisture from entering, ensuring the bearing’s leak-proof and sealing performance.

In order to ensure the normal operation of bearings, extend the overhaul cycle and improve work efficiency and reliability, it is crucial to select the appropriate lubricant. Based on the above functions, the following factors should be focused on when selecting lubricants:

  1. Suitable viscosity: The viscosity of lubricating oil has a direct impact on its fluidity and lubrication effect. The selection should be based on characteristics such as bearing pressure, speed and temperature, and should be maintained within a moderate range.
  2. Excellent oxidation stability: Bearing lubricating oil must have good oxygen resistance. Because it is easily oxidized by oxygen when left in the atmosphere for a long time, the performance of the lubricating oil will be damaged or even invalid. Therefore, lubricants with good antioxidant properties are preferred.
  3. Excellent anti-rust ability: The anti-rust properties of lubricating oil are related to the service life of the bearing. The added antioxidants can form a protective layer on the bearing surface to prevent it from being corroded, thus extending the bearing life.
  4. Excellent anti-foaming property: During the startup and operation of the machine, the lubricating oil will generate bubbles due to stirring. Such foam will weaken the lubrication effect and seriously shorten the bearing life. Therefore, it is crucial to choose a lubricant with good anti-foam properties.
  5. Good oil-water separation performance: In actual operation, lubricating oil will inevitably come into contact with water. If oil and water cannot be effectively separated, the lubricating oil will easily fail. Therefore, it is particularly necessary to choose lubricating oil with excellent oil-water separation ability.

In summary, when selecting bearing lubricants, multiple factors need to be weighed, such as appropriate viscosity, excellent antioxidant stability, excellent rust prevention capabilities, excellent anti-foaming properties, and excellent oil-water separation performance. In the process of selecting and using lubricants, it is necessary to fully combine the actual situation and comprehensively consider these factors in order to select the lubricant that best meets the requirements, so as to ensure the normal operation of the bearing and extend the service life.

Basic knowledge of open bearings

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An open bearing is a rolling bearing without a sealed design. Can withstand radial load and axial load. Mainly used in high-speed operation situations, such as gearboxes, instruments, motors, household appliances, internal combustion engines, etc. Open bearing designs usually include an outer ring, an inner ring, a set of steel balls and a set of cages. These components give the open bearing the characteristics of small friction coefficient and high limit speed. In addition, open bearings are available in a variety of sizes and formats, allowing them to be adapted to a variety of applications. In specific use, open bearings are not equipped with seals and are suitable for high-speed operation to ensure their good mechanical properties.

The bearing surface of open bearings has no sealing measures, so it can be in direct contact with the outside world. This design allows the bearings to operate more efficiently and withstand higher temperatures and pressures, but is also at greater risk of wear and dirt attack. Sealed bearings have sealing measures on the bearing surface to prevent dust and impurities from entering the inside of the bearing and ensure the cleanliness and accuracy of the bearing. The operating efficiency of sealed bearings is slightly lower, but their operating environment is cleaner and more stable, and they can also extend the service life of the bearings. In some situations where dust and impurities are strictly required, sealed bearings are the first choice.

There are many kinds of materials for open bearings. Depending on the application, load-bearing capacity and usage requirements, open bearings may be made of different metals, plastics or ceramic materials. The following are some common open bearing materials:

  1. Steel: It is one of the most commonly used open bearing materials. It has the advantages of high strength, good wear resistance and low cost. Typically, the internal structure of open bearings is made of steel plate or carbon steel, while the outside is protected by an anti-corrosion coating.
  2. Bronze: Bronze bearings are often used in high-speed operation situations because of their good wear resistance and fatigue resistance. In addition, bronze bearings also have better impact resistance and corrosion resistance.
  3. Plastic: Plastic bearings are typically used where low loads and long life are required. They are lightweight, corrosion-resistant, low-noise and not easy to get stuck. Commonly used plastic bearing materials include polyacetal, polyamide, and polyimide.
  4. Ceramic: Ceramic bearings have extremely high hardness and wear resistance, so they are very suitable for applications that require high loads and long service life. Common ceramic materials include silicon nitride, aluminum oxide and silicon carbide.

Open bearings are widely used in agricultural machinery, such as tractors, harvesters, planters, etc. Its key role in agricultural machinery is to improve the reliability and durability of the equipment so that it can still work efficiently in various harsh farm environments.

In addition, open bearings are also widely used in industrial machinery fields, such as machine manufacturing, chemical industry, petrochemical industry, steel industry, etc., as well as aerospace, automobiles, wind power generation and other fields. In these areas, open bearings are often used to load-bear, support and guide the movement of shafts. Open bearings have the characteristics of low friction, high load-bearing capacity and high precision, which can improve the operating efficiency and precision of equipment, thereby improving production efficiency and product quality.

Characteristics and differences between angular contact bearings and deep groove ball bearings

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Characteristics of angular contact ball bearings:

  1. It has the characteristics of strong load-bearing capacity, good rigidity, high rotation speed, high precision, and convenient installation and adjustment.
  2. It can bear both radial load and axial load.
  3. Easy to manufacture, low cost and suitable for mass production.
  4. Angular contact ball bearings are suitable for mechanical equipment with high precision requirements.

Characteristics of deep groove ball bearings:

  1. Small friction, high rotation speed, simple structure, high manufacturing precision and low manufacturing cost.
  2. There are more than 60 types of modified structures, which are widely used.
  3. Suitable for electromechanical motors, industrial machinery, gear boxes, industrial pumps, agricultural machinery, household appliances and other fields.
  4. It is the most common type of rolling bearing and is easy to operate.

There are significant differences in performance between angular contact ball bearings and deep groove ball bearings. Angular contact ball bearings can withstand larger radial loads and axial loads, and their ability to withstand eccentric loads is stronger than deep groove ball bearings.

At the same time, angular contact ball bearings can automatically adjust axial clearance to ensure stable operation even at higher speeds. In addition, angular contact ball bearings have higher speed limit and friction coefficient, which makes them perform better in high-speed rotation applications.

Deep groove ball bearings can also bear radial loads and axial loads, but their ability to bear eccentric loads is weak. Deep groove ball bearings have a lower friction coefficient and lower speed limit than angular contact ball bearings, making them suitable for use in low-speed rotating applications.

Generally speaking, angular contact ball bearings and deep groove ball bearings have their own advantages in performance, and users need to choose the appropriate bearing type based on actual application requirements.

Angular contact ball bearings have good radial load-bearing capacity and are suitable for high-load or high-speed operation situations, such as machine tool spindles, motors, reducers, etc. Its contact angle is usually 45° or 90°, and it can be divided into single row and double row.

Deep groove ball bearings have good impact resistance and a wide speed range, and are suitable for light or medium load applications, such as automobiles, motorcycles, office equipment, etc. The contact angle is usually 60°, and there are two types: single-row and single-row. Double row, usually with steel ball cage or roller cage.

To sum up, there are obvious differences in the applicable fields of angular contact ball bearings and deep groove ball bearings, but they can play an important role in different environments and working conditions. When selecting bearings, you should choose according to actual needs.

Deep groove ball bearings are typically used for radial loads, while angular contact ball bearings perform well under both radial and axial loads. The difference between the care and maintenance of angular contact ball bearings and deep groove ball bearings mainly lies in the requirements for lubrication and cleaning. Deep groove ball bearings generally require more lubrication to prevent damage due to friction, but angular contact ball bearings require more lubricant to ensure adequate lubrication between the ball cages. In addition, the cleaning of angular contact ball bearings also needs to be more careful, because once internal impurities enter, it may cause wear of the steel balls and cages, leading to bearing failure. Therefore, when maintaining and maintaining angular contact ball bearings, you need to pay more attention to details and follow correct operating procedures.

Do you really understand bearing steel?

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Bearing steel is the steel used to make bearings. Mainly divided into high carbon chromium bearing steel, carburized bearing steel and medium carbon bearing steel. Among them, high-carbon chromium bearing steel has good comprehensive properties and has the largest output. It has good cutting performance after spheroidizing annealing, high hardness and good wear resistance after quenching and tempering. Widely used in bearing manufacturing.Carburized bearing steel is used for high-load, high-speed bearings, such as automobiles, tractors, etc.; medium carbon bearing steel is used for manufacturing rolling bearings. In addition, bearing steel also includes stainless steel bearing steel, etc. These materials have high strength, wear resistance, corrosion resistance and other properties, allowing the bearings to operate normally in various harsh environments.

Bearing steel is a specialty steel used to make bearings and similar parts. Widely used in machinery industry. Bearing steel has the following outstanding performance characteristics:

1.High wear resistance: Since bearings are subject to extremely severe friction and wear, the bearing steel must have high wear resistance. The high wear resistance of bearing steel is due to the fact that the steel contains a large number of carbides, nitrides and other hard points. These hard spots form a protective film that effectively reduces friction and friction between the bearing and other contact surfaces. wear and tear.

2.High hardness: The hardness of the bearing steel is required to be around 60HRC so that it can withstand larger loads during work.

3.High strength: Bearing steel needs to be strong enough to resist stresses such as impact, vibration and bending during operation.

4.Good toughness and corrosion resistance: Bearing steel also needs to have good toughness and corrosion resistance to extend its service life.

To sum up, the performance characteristics of bearing steel are high wear resistance, high hardness, high strength, good toughness and corrosion resistance. These properties make bearing steel an ideal material for manufacturing bearings and similar parts.

The production of bearing steel requires special processes. First, raw steel is melted into molten steel in a steel-making furnace, and then different alloying elements are added to adjust the composition and properties of the steel. Next, molten steel is poured into the mold and solidifies to form an ingot.The steel ingot is then heated to a certain temperature and pressed through a rolling mill into the desired product shape, such as steel plate or steel bar. Finally, the steel is heat treated to improve its hardness and wear resistance to meet the requirements of bearing use. This production process requires precise control of the composition and properties of the steel, as well as strict control of temperature, pressure and other factors during the production process to ensure the quality and performance of the bearing steel.

Only by selecting the appropriate bearing steel material can the safe operation of mechanical equipment be ensured. When choosing bearing steel materials, the first thing to consider is your own application scenario. If the equipment needs to withstand high loads and high-speed rotation, it is necessary to choose bearing steel with high hardness and good wear resistance. If the equipment needs to run continuously for a long time, it is necessary to choose bearing steel with high corrosion resistance and oxidation resistance. In addition, the temperature and humidity of the use environment must also be considered to select bearing steel materials that adapt to these conditions. Only by correctly selecting the bearing steel material that suits your needs can you ensure safe and stable operation of the equipment.

What properties do machine tool spindle bearings need to have?

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The spindle bearings of CNC machine tools usually use rolling bearings, which rely on rolling elements to rotate. The bearing is equipped with an element consisting of several spheres, such as balls or steel balls made of ceramic material. They are used to bear axial and radial loads and ensure the operating performance of the turntable. Different types of rolling bearings can be selected according to different working conditions and usage requirements.

Specific types include thrust ball bearings + cylindrical roller bearings, hydrostatic bearings + precision cylindrical roller bearings and crossed roller bearings. These bearings can withstand axial, radial and rotational forces. In addition, depending on the performance requirements of rolling bearings, bearings made of advanced materials such as hybrid ceramic ball bearings can also be used. Because this type of bearing has low density, high elastic modulus, small thermal expansion coefficient, wear resistance, high temperature resistance and other properties, it is an ideal choice for manufacturing high-speed precision bearings.

In addition, for heavy machine tools or powerful cutting machine tools, the load-bearing capacity of the bearings can be considered first. In addition, the machine tool spindle support needs to reach P5 level or above precision, and the slewing bearing needs to reach P4 level or above.

The spindle support is one of the core components of the machine tool, and its performance is directly related to the working efficiency, accuracy and stability of the machine tool. Therefore, the spindle support needs to have the following properties:

  1. High rigidity: The spindle support needs to be rigid enough to withstand cutting forces and vibrations to ensure processing accuracy and stability.
  2. High accuracy: The positioning accuracy and rotation accuracy of the spindle support have a great influence on the processing accuracy of the machine tool.
  3. High-speed operation stability: During high-speed operation, the spindle support needs to withstand high centrifugal force, so it needs to have good high-speed operation stability to avoid vibration and imbalance.
  4. Long service life: Spindle bearings need to have a long service life to reduce replacement costs and downtime.
  5. Good lubrication: The spindle support needs a good lubrication system to ensure its long-term efficient operation and avoid failures caused by poor lubrication.
  6. Easy to install and maintain: The spindle bracket needs to be easy to install and maintain to reduce failures caused by improper installation or maintenance.

When selecting machine tool spindle bearings, you must first pay attention to the type of bearing and select the correct bearing type according to the working conditions of the spindle. Secondly, the appropriate bearing model should be selected based on the load, speed and accuracy of the spindle bearing. Generally, high load and low speed applications require the use of low clearance, high load and high precision bearings, while for high speed and light load applications, high clearance, low load and low precision bearings are usually used.

When selecting bearings, you should also consider the service life and maintenance costs of the bearings, and choose bearings with longer service life and lower maintenance costs. Finally, the appropriate bearing installation size should be selected based on the actual size of the spindle. If the spindle has excessive axial force or radial force, it is also necessary to select bearings with special seal designs accordingly to ensure long-term use of the bearings.

Introduction to non-standard bearings

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Non-standard bearings refer to bearings that do not meet the external dimensions specified by national standards. They are usually produced according to customer requirements, and the size and structure are not fixed. Non-standard bearings are mainly used in special equipment and special occasions, such as British non-standard bearings, which are mainly customized according to customer requirements and have low versatility.Different from this, ordinary standard bearings are bearings that comply with the external dimensions specified by national standards and are used more widely.

When selecting bearings, appropriate bearings should also be selected based on different application requirements and working conditions. For example, double row angular contact ball bearings are suitable for bidirectional loads, and self-aligning ball bearings are suitable for situations where coaxiality cannot be guaranteed. Tapered roller bearings and deep groove ball bearings can withstand radial and axial loads, etc.

The structural design of non-standard bearings needs to consider factors such as the entry of lubricating oil into the friction surface, the location of the introduction of the bearing, the opening of oil grooves, etc. At the same time, it is necessary to prevent sharp edges or corners that cut off the oil film, and prevent the occurrence of stagnant areas, etc.

For the production process of non-standard bearings, product design must first be carried out, which requires professional technicians and engineers. During the design process, customer needs and product performance requirements must be fully considered to ensure the feasibility and reliability of the design.

Then, based on the design requirements, the selection and procurement of raw materials begins. The quality of raw materials is directly related to the performance and service life of bearings, so it must be strictly controlled.

After the raw material procurement is completed, the manufacturing and processing of the bearings begin. This process includes heat treatment of bearing steel, turning, grinding and milling of bearing parts, etc. Surface treatment, such as chromium plating, nickel plating, etc., is also required to ensure the appearance and anti-corrosion performance of the bearing.

During the production process, strict quality control measures are essential. In addition to using advanced equipment and processes, such as CNC lathes, grinders, etc., strict quality testing is also required, such as dimensional testing, rotation accuracy testing, fatigue strength testing, etc.

Finally, after the product has been inspected, it is ready for packaging and storage. During the packaging and transportation process, certain measures also need to be taken, such as moisture-proof, shock-proof, drop-proof, etc., to ensure the quality and safety of the product.

To sum up, the production process and quality control measures of non-standard bearings are a systematic and complex process that require all-round control and consideration to ensure that the quality and performance of the products meet customer requirements.

Performance characteristics and application areas of stainless steel bearings

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As an important mechanical component, stainless steel bearings are widely used in various industrial fields, such as automobiles, aerospace, energy, medical equipment, etc. Its outstanding performance and durability make it the first choice for many critical applications. This article will introduce in detail the main performance characteristics of stainless steel bearings.

  1. High strength and corrosion resistance

The main material of stainless steel bearings is stainless steel, an alloy with high strength and corrosion resistance. The strength of stainless steel allows it to withstand high loads and frequent rotational movements, which is critical in applications that require strong pressure and impact. In addition, the corrosion resistance of stainless steel allows it to maintain excellent performance in various environments, including humidity, high temperature, corrosive chemicals, etc.

  1. Good friction performance

Stainless steel bearings have excellent friction properties, which can effectively reduce energy loss and improve mechanical efficiency. Its friction coefficient is usually low and changes little under different environmental conditions, which allows the bearing to maintain stable performance under various working conditions.

  1. Higher speed capability

Stainless steel bearings can withstand higher rotational speeds, which is critical for applications requiring high-speed rotation. This allows the bearing to achieve high performance in a compact space while also reducing noise and heat.

  1. Long service life

Another important feature of stainless steel bearings is their long service life. Due to their excellent durability and high strength, stainless steel bearings are often able to withstand high loads and frequent rotational movements without premature wear or failure. This significantly reduces maintenance costs and improves the overall performance and reliability of the equipment.

  1. Environmental protection and sustainability

Another advantage of stainless steel bearings is the environmental friendliness and sustainability of their production. Stainless steel is a recyclable material, which makes equipment using stainless steel bearings easier to recycle and dispose of after its life cycle, reducing the environmental impact.

Stainless steel bearings are widely used in various fields due to their excellent performance and long-term durability. From industrial production to daily life, from high-tech equipment to traditional manufacturing, stainless steel bearings are everywhere.

  1. Manufacturing industry

In the manufacturing industry, stainless steel bearings are particularly widely used. Whether it is machinery and equipment in heavy industry, such as excavators and rolling mills, or small equipment in light industry, such as sewing machines and coffee machines, stainless steel bearings play an important role. They perform well and are durable under high loads and high frequency rotations.

  1. Transportation

The transportation field is also an important application place for stainless steel bearings. In the automobile manufacturing industry, stainless steel bearings are used in key parts such as steering gears and wheel bearings, which greatly improves the performance and stability of the automobile. At the same time, the use of stainless steel bearings in subways, trains and other means of transportation has also improved their operating efficiency and reliability.

  1. Medical equipment

In the medical field, stainless steel bearings are ideal for medical devices due to their unparalleled resistance to corrosion and wear. For example, orthopedic surgical instruments, wheelchairs, walkers, etc. all require bearings to transmit power. The application of stainless steel bearings on these devices greatly improves their service life and safety.

  1. Electronic products

With the development of science and technology, the application of stainless steel bearings in electronic products is becoming more and more common. From smartphones to computers, from game consoles to electronic watches, stainless steel bearings can be seen. They provide smooth rotation and precise control of these devices, enhancing the user experience.

  1. Agricultural machinery

In the agricultural field, stainless steel bearings also play an important role. Stainless steel bearings are used in key parts of agricultural machinery such as tractors and harvesters, which improves the efficiency and durability of the machinery and reduces the cost of agricultural production.

  1. Sports equipment

In the field of sports equipment, stainless steel bearings are also a major trend in the future. High-end sports equipment such as skis and golf clubs have begun to use stainless steel bearings. They provide better control and stability, allowing athletes to perform better in competitions.

  1. Underwater equipment

In underwater operations, stainless steel bearings also play an important role. Diving equipment, underwater detection equipment, etc. all require bearings to transmit power. The corrosion resistance and stability of stainless steel bearings under water make them perform well in underwater operations.

In summary, stainless steel bearings have penetrated into various fields with their excellent performance and long-term durability. Whether it is heavy industry, light industry, transportation, medical equipment, electronic products, agricultural machinery or sports equipment, stainless steel bearings provide strong support for the development of various fields with their excellent performance and stability. With the advancement of science and technology and the expansion of application fields, we can foresee that the application fields of stainless steel bearings will continue to expand, and their importance will become increasingly prominent.

Core technology and application fields of slewing bearings

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The core technology of slew bearings includes the following aspects:

  1. Design and manufacturing of rollers: In order to ensure the load capacity and working accuracy of the slew bearing, the rollers must use appropriate materials and manufacturing processes. The structure and processing difficulties of the ultra-large split three-row cylindrical roller slew bearing show that the rollers need to be disassembled and spliced multiple times, and the processing technology is complex and the accuracy is difficult to guarantee.
  2. Design and manufacturing of cage: Slewing bearings usually use nylon cages. The cage has the advantages of light weight, low noise, and extended bearing service life, but it also has some disadvantages, such as being unable to withstand high temperature, high pressure, and high-speed rotation. Therefore, the cage needs to have sufficient strength and wear resistance, and can withstand certain impact and vibration.
  3. Design and manufacturing of ball cage: The ball cage is one of the key parts of the slew bearing. It can connect multiple rollers and cages and ensure their relative position during rotation. Ball cages require appropriate materials and manufacturing processes to ensure their strength and stability.
  4. Design and manufacturing of bearing seat: The bearing seat is the supporting part of the slew plate bearing. It needs to have sufficient strength and rigidity to ensure the stability and reliability of the bearing during rotation. The design of the bearing seat needs to take into account factors such as the size, weight and load of the bearing.
  5. Design and manufacturing of lubrication and sealing: Lubrication and sealing are important components of slew bearings. They can ensure the stability and reliability of the bearing in long-term operation. Lubrication requires the use of an appropriate lubricant and the appropriate method of lubrication. Sealing requires appropriate sealing methods to prevent the external environment from affecting the inside of the bearing.
  6. Assembly and debugging of slew plate bearings: The assembly and debugging of slew plate bearings need to ensure the correct installation and adjustment of various components such as rollers, cages, ball cages, bearing seats and seals. Appropriate tools and equipment need to be used to ensure the quality and accuracy of assembly.

The powerful medical technology of slewing bearings makes them widely used, mainly in the following fields.

Industrial field: Slewing bearings are widely used in large equipment in the industrial field, such as large rolling mills, grinding mills, large paper machines, wind turbines, etc. It can carry heavy loads while maintaining stable accuracy and load-bearing capacity under high-speed operation, improving production efficiency and ensuring product quality.

Aerospace field: In the aerospace field, turntable bearings are mainly used to drive key equipment such as rotating radar, satellite attitude adjustment, and aerospace engines. The high precision and stability requirements of aerospace equipment make slew bearings an important component.

Wind power field: In the wind power field, slew bearings are mainly used in large wind turbines. With the development of wind power, large wind turbines have gradually become an important part of the wind power industry. The turntable bearings ensure the high efficiency and long-term stability of the wind turbine.

Medical equipment field: In the field of medical equipment, turntable bearings are mainly used in medical equipment such as rotating operating beds, CT scanners, and MRI equipment. In these devices, turntable bearings provide high-precision, high-reliability motion support to ensure stable operation of the equipment and patient safety.

Military field: In the military field, slew bearings are mainly used in tanks, aircraft, missiles and other military equipment. Since these equipment need to operate and fight in extreme environments, slew bearings need to have special properties such as high temperature resistance, wear resistance, and earthquake resistance.