What properties do machine tool spindle bearings need to have?

/in /by

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

/in /by

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

/in /by

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

/in /by

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.

Features and advantages of combined needle roller bearings

/in /by

Combined needle roller bearings are a special type of bearing that can add a needle roller assembly between its inner ring and outer ring to achieve effects such as balancing accuracy and reducing vibration and noise. The design and manufacture of such bearings requires precise calculations and highly specialized skills.

Different from general types of needle roller bearings, combined needle roller bearings make the combination of needle rollers and raceways adjustable. This design can select needle rollers of different lengths and shapes to match the raceways according to actual needs. needs. This design allows the needle roller bearing to be more flexible during installation, and the bearing can be adjusted according to the requirements of the equipment and industry to improve its performance and stability.

In addition, combined needle roller bearings can also withstand radial and axial forces, have high load-bearing capacity and low friction coefficient, and can work under high load and high speed conditions. This type of bearing is suitable for a variety of mechanical equipment and industries, including machine tools, construction machinery, agricultural machinery, and industrial robots.

Features and advantages of combined needle roller bearings:

  1. Strong load-bearing capacity: The combined needle roller bearing is composed of an inner ring, an outer ring and a needle roller. Its unique structure makes its load-bearing capacity stronger than that of ordinary bearings, and can adapt to high load and high-speed rotation situations.
  2. Wear resistance: The combined needle roller bearings are made of high-quality materials and have good wear resistance, and can maintain stable performance even during long-term operation.
  3. High precision: The design and manufacturing process of combined needle roller bearings are strict, making them highly precise and ensuring high-quality rotation accuracy and stability.
  4. Easy to install: The combined needle roller bearing has a compact structure and is easy to install and disassemble. Replacement can be completed quickly, reducing downtime and maintenance costs.
  5. Wide range of applications: Combined needle roller bearings can be used in a variety of applications, including machinery, electrical, chemical and other industries, and can meet different needs.

Selecting a suitable combined needle roller bearing requires consideration of several factors, including bearing size, load, speed and rotational speed. First of all, it is necessary to determine the application scenarios and working conditions for using combined needle roller bearings, and select the bearing size based on this.Secondly, according to the application environment and load conditions, select the appropriate bearing type, such as single row radial combined needle roller bearings, double row radial combined needle roller bearings or angular contact combined needle roller bearings. Next, you need to pay attention to the bearing speed and speed limits to ensure that the selected bearing can maintain sufficient stability and life at the highest operating speed.Finally, when selecting bearings, factors such as bearing material, lubrication, and sealing also need to be considered to ensure that the bearings can maintain stable performance and reliability in a specific working environment.

The company participated in the 7th Pakistan Industrial Exhibition

/in /by

The 7th Pakistan Industrial Exhibition will open in Lahore, Pakistan’s second largest city, on November 25, 2023. The scale of this exhibition is far greater than that of the previous one. The scale of this year’s exhibition has been expanded to two exhibition halls. The exhibition hall displays products from local Pakistani companies, while Hall 2 focuses on exhibits from Chinese companies.At this exhibition, hundreds of companies from China became the focus of the Lahore Convention and Exhibition Center.

This time, Chinese enterprises organized a group to go overseas, attracting more than 130 manufacturing companies from Shandong, Henan, Hebei, Hunan and other places to participate in the exhibition, with an exhibition area of more than 8,000 square meters.

There are nine theme exhibition areas on site. The exhibition exhibits cover agricultural machinery, transportation, automobile and motorcycle accessories, CNC machine tools, electronic and electrical, industrial equipment and accessories, hardware tools and other industries.

This exhibition also attracted more than 30 local Pakistani companies to participate in the exhibition, which also built a bridge of communication and interaction for exhibitors from the two countries. Through the “going out” and “bringing in” of products from the two countries, it further promoted the development of China-Pakistan trade. Exchange and cooperation.

On the first day of its opening, the exhibition attracted more than 10,000 professional buyers from Pakistan to visit and negotiate. It is expected that the number of visitors in the three days will exceed 30,000, and the overall intended transaction volume is expected to exceed US$100 million.

This year marks the 10th anniversary of the launch of the China-Pakistan Economic Corridor. The Pakistan Industrial Exhibition has been held for seven consecutive years, which is the fruitful result of the China-Pakistan Economic Corridor.

The exhibition has brought advanced Chinese manufacturing to Pakistan, which will further promote local industrial development and improve Pakistan’s industrialization level.

Our company participated in this exhibition and displayed various types of bearings at the booth, attracting many interested buyers. The following is a live picture of the exhibition.

Common materials for bearing oil seals

/in /by

Common materials for bearing oil seals include:

  1. Nitrile rubber (NBR): This is a commonly used oil seal material with excellent oil resistance and wear resistance. It is suitable for most environments, but is not resistant to high temperatures.
  1. Fluorine rubber (FKM): This is another commonly used oil seal material. Its resistance to high temperatures and chemical media is superior, but the cost is slightly higher and needs to be selected according to specific needs.
  2. Acrylic rubber (ACM): Acrylic rubber has good resistance to high temperatures and chemical media, is light in weight, and has low cost, but its oil resistance is slightly poor.
  1. Silicone rubber (VMQ): Silicone rubber has excellent high temperature resistance, ozone resistance, UV resistance and oil resistance, but its hardness is low and its wear resistance is poor.
  2. Polytetrafluoroethylene (PTFE): Polytetrafluoroethylene is a material with excellent corrosion resistance. It is not widely used in oil seals, but in some special occasions, such as those containing corrosive media such as strong acid and strong alkali. Under certain conditions, oil seals made of polytetrafluoroethylene will be used.

In addition, bearing seals and dust covers are made of a variety of materials. The dust cover is generally made of cold-rolled electroplated tin steel plate, and the sealing ring is often made of nitrile rubber or fluorine rubber. Specific applications require the selection of appropriate materials based on factors such as the working environment and operating temperature.

Methods to judge the material quality of bearing seal rings:

  1. Observe the surface: First observe the surface of the sealing ring. It should be smooth and delicate, without obvious impurities and defects. A defective seal may affect its sealing performance and service life.
  2. Smell: If the sealing ring emits an odor, there may be a quality problem. A good seal should have no pungent smell.
  3. Measurement dimensions: Measure according to the standard dimensions provided by the manufacturer. If the seal size is not within specification, it may result in bearing leakage or damage.
  4. Use tools: Use appropriate tools to shear, compress, stretch, etc. the sealing ring to observe its elasticity and stretchability. A good sealing ring should have good elasticity and stretchability and can withstand a certain amount of external force and pressure.
  5. Check the performance of the sealing ring: Put the sealing ring into a high temperature and high pressure environment for testing. If the sealing ring can maintain stable performance and sealing effect, it means that its quality is excellent.

The above steps will help you accurately judge the quality of the bearing seal ring material. Choosing good quality sealing rings can ensure the normal operation of the bearing and extend its service life.

The function and classification of bearing retaining rings

/in /by

Bearing retaining ring is a fastener used in bearings to prevent axial movement. Bearing retaining rings are usually made of high-quality steel with high strength, wear resistance and corrosion resistance. Its functions include position fixation and positioning, preventing axial slippage and protecting key components. It is widely used when there is no axial load or very small axial load.

The materials for bearing retaining rings mainly include metal materials such as iron, copper, and stainless steel, as well as non-metallic materials such as nylon and polyformaldehyde. According to different use environments and performance requirements, the manufacturing materials of bearing retaining rings also vary.

Iron retaining rings are one of the most common choices due to their affordability, but they may rust in corrosive environments. Copper retaining rings have good corrosion resistance, but the price is relatively high. Stainless steel retaining rings have good corrosion resistance and are relatively affordable.

Compared with metal retaining rings, non-metallic retaining rings are more durable, lighter and easier to process, and are widely used in situations that require higher precision. For example, nylon retaining rings are often used where low loads are required, while polyacetal retaining rings are often used where high wear resistance is required.

Therefore, when selecting the material for the bearing retaining ring, the advantages and disadvantages of various materials need to be comprehensively considered according to the specific use requirements.

Bearing retaining rings can be divided into many types according to different uses. First of all, according to its use occasions and installation methods, it can be divided into flat retaining rings, inclined retaining rings and medium retaining rings. Secondly, according to the main function and form of the retaining ring, it can be divided into stop ring, round nut, double round nut or shaft end pressure plate, etc. In addition, according to the material and thickness of the retaining ring, it can also be divided into light, medium and heavy duty.

Bearing retaining rings are mainly used to fix the positions of bearings, gears, gaskets and other components to ensure the reliability and stability of the equipment and improve the safety and reliability of the equipment. In addition, bearing retaining rings can also be used in non-standard automation industries to ensure the assembly and stable operation of equipment.

The bearing retaining ring is a component used to prevent the outer ring or inner ring of the bearing from falling off the bearing seat. It ensures the normal operation of the bearing by limiting the axial movement and radial movement of the bearing. Specifically, when the inner ring or outer ring of the bearing moves on the shaft, the bearing retaining ring can play a blocking and positioning role so that the bearing will not shake in the axial and radial directions during operation.

Bearing retaining rings are often available in a variety of shapes and sizes to suit different bearing models and applications. The design of the bearing retaining ring needs to take into account its cooperation and installation with the bearing to ensure the stability and accuracy of the bearing.

When a bearing is worn or damaged during operation, the bearing retaining ring may lose its blocking and positioning functions. At this time, the bearing will shake axially and radially, causing wear and damage to the bearing seat and shaft. Therefore, while ensuring the normal operation of the bearing, the bearing retaining ring also needs regular inspection and maintenance to ensure that its position and condition in the bearing are good.

Why is bearing PEEK material so expensive?

/in /by

Bearing PEEK material is a special engineering plastic, well known as the “King of Plastics”. It is based on high-performance engineering plastic PEEK and has excellent heat resistance, chemical stability, dimensional stability and mechanical properties, and can adapt to various harsh working environments. It is widely used in bearings with high temperature, low viscosity lubricants and corrosive environments, such as tilting pad thrust bearings and journal bearings.

As for why PEEK materials are more expensive, on the one hand, it is because PEEK materials are high-performance materials that require special production processes and raw materials, and the production costs are high. At the same time, due to the wide range of characteristics and application fields of PEEK materials, the demand is large and the market supply is tight, so the price is naturally relatively high.On the other hand, PEEK materials have excellent properties such as high temperature resistance, corrosion resistance, wear resistance and self-lubricating properties, which can effectively reduce friction and improve efficiency, reduce the risk of failure and extend the service life of components, thus bringing better results to users. Great value. In the current market, the price of PEEK material is about 500 yuan/kg. Although there are some shortcomings, such as difficulty in processing and poor melt fluidity, its comprehensive performance and economic benefits make it popular in all walks of life. widely used.

In the aerospace field, PEEK materials are widely used in the manufacture of parts such as rocket nozzles and fuel injectors. These parts play a vital role in rocket propulsion and fuel control, and PEEK material has the advantages of high temperature resistance and corrosion resistance, so it can maintain excellent performance in this high temperature and high pressure environment.

In the medical field, PEEK materials are used to manufacture medical devices such as fracture fixators, heart stents, and prostheses. Due to its high strength, low wear and corrosion resistance, PEEK material can greatly improve the service life and safety of these medical devices.

In the field of automobile manufacturing, PEEK materials are widely used to manufacture engine parts, transmission shafts, lamp covers and other parts. These parts are critical to the performance and safety of automobiles, and PEEK material’s high strength, wear resistance and low weight properties can meet the needs of the automotive industry.

In the field of petrochemical industry, PEEK materials are widely used in manufacturing components of petrochemical equipment, such as mixers, heat exchangers, pipes, etc. These parts need to withstand environmental conditions such as high temperature, high pressure and corrosion, and the corrosion resistance, high temperature resistance and high strength of PEEK material make it an ideal choice.

To sum up, PEEK materials are widely used in aerospace, medical, automobile manufacturing, petrochemical and other fields. These cases prove the high performance and superiority of PEEK materials, and also reflect its broad application prospects.

Types and characteristics of bearing grease

/in /by

Bearings are commonly used in mechanical equipment. So, what kind of grease should we use for different types of bearings to make them last longer? This article will analyze several common bearing grease types and characteristics.

  1. Calcium-based grease

Calcium-based grease is a lubricating product made with calcium soap as the main thickener and supplemented by other additives. It has good lubricity, good water resistance, average adhesion, high dropping point, and good high and low temperature resistance. Since calcium-based grease is evolved from soap-based grease, it has all the characteristics of soap-based grease. When used, it is generally relatively viscous and will not easily run off when applied to bearings and other components. It will produce a lubricating film between the metal and the substance.It is especially suitable for the use of some mechanical equipment in environments with high humidity, high temperature or large mechanical vibration. It is widely used in industrial equipment, especially in the lubrication of high-temperature, low-humidity or dust particle environments, as well as high-speed rolling bearings with particularly heavy workloads that require particularly high grease film pressure.For example, this kind of grease is widely used in mechanical equipment such as cotton pickers, cotton balers, and threshing machines in the agricultural machinery industry.

  1. Lithium-based grease

Lithium-based grease is a versatile lubricating product made with natural fatty acid lithium soap as a thickener and other auxiliary additives. Lithium-based grease is synthesized from a variety of materials such as mineral oil, soap-based thickeners, additives and fillers. It has a soap fiber structure. As the temperature increases and decreases, the molecular structure changes, thus affecting the viscosity and consistency of the grease. Due to its good comprehensive performance, it can meet various bearing lubrication requirements under harsh conditions. Especially when used under conditions such as high temperature, high speed, heavy load and chemical corrosion, it shows its superiority. It can be applied to the lubrication of various types of bearings. This kind of grease is widely used in agricultural machinery such as tractors, automobiles, diesel engines and other mechanical equipment.

  1. Lithium complex grease

Lithium complex grease combines the advantages of various lithium greases and has the characteristics of high dropping point, good adhesion, extreme pressure and anti-wear, water resistance, and excellent rust prevention. It is blended with lithium complex soap thickener, high viscosity refined oil and softener. Suitable for lubrication of various bearings under conditions such as high temperature, high speed, high speed and humidity.Due to its excellent performance, it has been widely used in some mechanical industry fields. The lubrication of chains and gears used in steel plants is one example.

  1. Extreme pressure calcium-based grease

The characteristic of this kind of bearing grease is that it can wash away worn metal chips to a certain extent, reduce the direct wear effect of solid impurities on the bearing steel surface, and improve the wettability of the bearing steel surface, making the steel surface less likely to be scratched. thorns, thereby ensuring a longer-lasting and better self-lubricating effect between the steel surface and the journal, and helping to reduce mechanical noise and ensure low-noise working conditions of mechanical equipment.It is suitable for coating the surface of castings before leaving the factory to eliminate impurities and tiny convex parts remaining on the surface of the parts during casting and prevent corrosion, making the castings easy to assemble and reduce friction. In addition, it is also suitable for the lubrication and flushing of double-row radial spherical roller bearings in textile machinery coiler bearings and other parts in the machinery industry that require waterproofing, rust prevention and a certain degree of adhesion.

  1. High temperature bearing grease

High-temperature bearing grease should be used for bearing parts in mechanical equipment that are often exposed to high temperatures.Generally speaking, high-temperature grease is generally made of fully synthetic base oil and sulfonate thickener at working temperatures below 260 degrees. It is used on bearings working at low and high temperatures in harsh environments (generally more than 150 degrees). It is a high-temperature bearing) and is also suitable for the lubrication and protection of motor parts in the aerospace field. Currently, there are various types of high-temperature greases on the market. When choosing, you should choose the appropriate production raw materials according to the industrial and mining conditions and environmental requirements. The best product is suitable for your own use. For bearings working under high-speed operating conditions, the viscosity of the selected grease should be small and the fluidity should be good to ensure that the resistance is small when the bearing is running. The friction on the bearing is small, which can significantly reduce mechanical noise and save energy; otherwise, the resistance increases. Increased friction will accelerate bearing wear and shorten service life.