What is Aligning ball bearings？

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Aligning ball bearings are self-aligning bearings that can bear both radial and axial loads. This special bearing is mainly used in papermaking machinery, speed reduction devices, railway vehicle axles and other equipment.

The structural design of the self-aligning ball bearing gives it excellent self-aligning performance. Its outer ring raceway is spherical, and the inner and outer rings can be tilted relative to each other by no more than 3 degrees. This enables the bearing to automatically adjust the axis deviation during installation and operation, reduce vibration and wear caused by shaft bending or tilt, and improve the operational stability and reliability of the equipment.

In addition, self-aligning ball bearings also have the characteristics of low friction, low noise and long life, and are widely used in various machinery, such as precision instruments, low-noise motors, automobiles, motorcycles and general machinery. Its structural form includes models with dust cover and sealing ring, which not only ensures the lubrication and dust-proof effect of the bearing, but also increases its service life.

Regarding the installation of self-aligning ball bearings, first of all, when installing the self-aligning ball bearings, they must be placed in a horizontal position and fixed with special tools such as screws or hammers. Next, ensure that the inner ring of the bearing fits closely with the shaft to avoid gaps.Afterwards, you can turn the bearing by hand to check whether it rotates smoothly. If there is any jamming, make appropriate adjustments. During the installation process, you need to pay attention to the installation direction of the bearing. Generally speaking, self-aligning ball bearings can be installed in both directions, but you need to choose the correct installation direction according to the actual situation to ensure that it achieves the best performance.After completing the installation, it is also necessary to check the contact between the bearing and the shaft to ensure that the contact surface is free of impurities or damage. Finally, apply appropriate lubricant to extend the life of the bearings.

When purchasing self-aligning ball bearings, you first need to clarify the application scenarios and requirements. Specifically, factors such as the fit of the shaft and the bearing, the installation position, and the size of the load need to be considered, which will directly affect the selection of the self-aligning ball bearing.

For larger-sized self-aligning ball bearings, special attention needs to be paid to their load-bearing capacity. If the diameter of the shaft is larger or the bearing capacity is heavier, it is particularly important to select an appropriately sized aligning ball bearing. In this case, it is recommended to use multi-row self-aligning ball bearings to improve the bearing capacity and stability.

Secondly, the rotation speed of the shaft is also an important factor in selecting self-aligning ball bearings. If the shaft needs to rotate at high speed, it is recommended to use high-speed bearings. In addition, choosing self-aligning ball bearings with dust-proof and anti-fouling devices such as oil seals or waterproof rings can also effectively extend the service life of the bearings.

Finally, when purchasing self-aligning ball bearings, you should also pay attention to their quality and brand. Choosing self-aligning ball bearings produced by regular manufacturers with good reputation and quality assurance can effectively reduce the risk of bearing damage.

In general, choosing a suitable self-aligning ball bearing requires comprehensive consideration of multiple factors, including bearing size, load-bearing capacity, rotation speed, dust and anti-fouling capabilities, and brand. Only by correctly selecting the self-aligning ball bearing can you ensure that it can perform optimally and extend its service life.

What are insulated bearings?

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Insulated bearings are bearings with electrical insulation properties that can effectively prevent the passage of current. They are mainly used in motors, generators and other equipment. This kind of bearing is composed of bearing steel inner ring, outer ring, cage and steel ball (or roller). The rolling elements can be made of ceramics.

In equipment such as motors and generators, rolling bearings may be affected by current erosion, causing bearing damage and motor failure. The use of insulated bearings can effectively prevent the electrical corrosion of the bearings and the influence of grease and rolling elements by current, increase the service life of the bearings, and ensure the normal operation of the equipment.

The electrical insulation properties of insulated bearings can be guaranteed by measuring insulation resistance, shaft voltage and shaft current to ensure that the coating and coating thickness on the bearing surface can withstand the set voltage level.For example, the outer surface of its outer ring or inner ring is coated with a layer of aluminum oxide, which can withstand voltages up to 1000VDC, and its rolling elements are made of ceramics. The insulation condition needs to be measured by measuring insulation resistance, shaft voltage and shaft current. Assure.

Therefore, insulated bearings are widely used in motors, generators and other equipment, mainly to prevent shaft current from causing burn damage to bearings and improve the operating reliability and service life of bearings.

The choice of materials for insulated bearings mainly depends on their function and field of application. In general, these bearings must have high wear resistance, high insulation properties and good mechanical properties.

Common insulating bearing materials include ceramic, graphite and polytetrafluoroethylene (PTFE). Ceramics are known for their high hardness, high wear resistance and good insulating properties. Graphite is widely used in the bearing field due to its low friction coefficient and excellent lubrication properties. PTFE is widely used because of its superior corrosion resistance and insulation properties.

According to different usage environments and working conditions, designers and engineers can also choose other special materials to manufacture insulated bearings. For example, in high temperature, high pressure or extreme environments, you can choose metals with high melting points and good corrosion resistance, such as stainless steel or titanium.

Insulated bearings usually consist of three main parts: the bearing itself, the bushing, and the insulator inside the bushing. Insulators, usually made of materials such as glass or ceramic, are used to isolate the electrical contact between the bearing and bushing. This design ensures the electrical insulation of the sleeve and bearing, allowing the entire device to safely conduct electrical energy during operation.

In practical applications, insulated bearings are often used in power equipment such as high-voltage motors, motors and generators to reduce the risk of corona and leakage. This kind of bearing can also effectively reduce the heat generated in high-speed running equipment and improve its service life and reliability. In addition, the design of the insulated bearings also makes it easy to install and maintain, thus reducing the maintenance cost of the equipment.

Common types of maintenance-free bearings

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Maintenance-free bearings have important applications in mechanical equipment. Their special performance eliminates the need for frequent maintenance, reduces maintenance costs, and avoids equipment downtime due to improper maintenance. This article will introduce several common maintenance-free bearing types.

  1. Self-lubricating bearings

Self-lubricating bearings are special maintenance-free bearings that do not require frequent addition of lubricants or grease. This kind of bearing is usually made of a special composite material that is self-lubricating. When the bearing rotates, the material will produce lubrication from the inside, reducing friction and wear. Self-lubricating bearings are generally used where high precision, long life and maintenance-free are required.

  1. Oil bearings

The characteristic of oil-impregnated bearings is that the inside of the bearing is filled with solid or liquid lubricant. This kind of bearing is usually made of metal or plastic and is filled with lubricant. When the bearing rotates, the lubricant will form an oil film between the inner and outer rings, reducing friction and wear. Oil-impregnated bearings are usually suitable for applications requiring lower speeds and smaller loads.

  1. Ceramic bearings

Ceramic bearings are maintenance-free bearings made of ceramic materials. Ceramics have high hardness and high wear resistance, and are suitable for high speed and high load applications. Ceramic bearings usually consist of ceramic balls and rings. The inner and outer rings are usually made of high-hardness ceramic materials, and the balls are made of high-purity aluminum oxide or silicon nitride. Ceramic bearings have the characteristics of high precision, long life and maintenance-free, and are suitable for mechanical equipment requiring high speed and high load.

  1. Plastic bearings

A plastic bearing is a maintenance-free bearing made of plastic material. Plastic bearings usually consist of an inner ring and an outer ring. The outer ring is usually made of metal or plastic, and the inner ring is made of plastic. Plastic bearings are lightweight, cheap and easy to process, and are suitable for applications requiring smaller loads and lower speeds.

  1. Stainless steel cage bearings

Stainless steel cage bearing is a maintenance-free bearing composed of stainless steel cage and steel balls. This kind of bearing features a cage and steel balls made of stainless steel, which are high-precision, long-life and maintenance-free. Stainless steel cage bearings are suitable for mechanical equipment requiring high speed and high load, such as automobiles, machine tools and pumps.

  1. Rubber bearings

Rubber bearings are maintenance-free bearings made of rubber material. Rubber is highly elastic and adaptable, making it suitable for a variety of environments and working conditions. Rubber bearings usually consist of an inner ring and an outer ring. The outer ring is usually made of metal or plastic, and the inner ring is made of rubber. Rubber bearings are lightweight, elastic and adaptable, and are suitable for applications requiring larger loads and lower speeds.

The above are several common maintenance-free bearing types, each type has its unique characteristics and applicable occasions. In practical applications, appropriate maintenance-free bearings should be selected according to the working conditions and requirements of the equipment to achieve optimal performance and life. At the same time, the maintenance and management of maintenance-free bearings are also crucial. Regular inspection and maintenance can ensure the normal operation of the bearings and extend their service life.

The Importance of Bearing Clearance

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Bearings are an important part of mechanical equipment. They carry out the key tasks of rotation, support and shock absorption. In this process, bearing clearance – the space between the inner and outer rings of the bearing – plays a decisive role. While the concept may seem simple, the presence of clearance can have a profound impact on bearing performance, life and stability.

  1. Basic concept of bearing clearance

Bearing clearance, also known as preload clearance, refers to the gap between the inner and outer rings of the bearing under no load conditions. This clearance is critical to maintaining the bearing’s rotational accuracy and reducing friction. It provides the bearing with moderate elastic deformation space, helping to maintain shaft concentricity while allowing certain vibration and temperature changes.

  1. The importance of bearing clearance

1.Mechanical properties: Bearing clearance is critical to the rotational accuracy and stability of the bearing. Excessive clearance may cause friction and heat, thereby reducing bearing life. Proper clearance allows the bearings to operate smoothly, reduces vibration and noise, and improves the overall performance of the machine.

2.Durability: Bearing clearance directly affects the fatigue life of the bearing. Excessive clearance will increase friction and temperature rise, which will accelerate bearing wear and shorten the service life of the bearing. Appropriate clearance can extend the service life of the bearing and improve the overall durability of the equipment.

3.Vibration control: Proper clearance helps reduce bearing vibration and improves equipment stability. This is especially important for equipment that requires high precision and stability, such as precision machine tools, medical equipment, etc.

4.Temperature control: Bearing clearance is closely related to temperature. Excessive clearance will cause friction to generate heat, which will affect the overall temperature distribution of the equipment. The appropriate clearance helps control the temperature and ensure the normal operation of the equipment.

5.Maintenance costs: The stable operation of bearings can reduce the frequency of repair and replacement of bearings, thereby reducing the cost of equipment maintenance. Excessive clearance may cause premature bearing wear, increase the need for repairs and replacements, and thus increase maintenance costs.

  1. How to measure bearing clearance

In order to ensure the normal operation of the bearing, we need to regularly measure the clearance of the bearing. Typically, we use a radial clearance adjustment device (RCTA) for measurement. This method adjusts the clearance by changing the preload to ensure the best performance of the bearing.

  1. How to adjust bearing clearance

The method of adjusting bearing clearance varies depending on the bearing type and manufacturer. Usually, we can make adjustments manually or automatically. Manual adjustments usually require the aid of tools such as wrenches and screwdrivers. Automatic adjustment usually relies on some specific devices and methods, such as automatic spherical roller bearings.

Bearing clearance plays a vital role in the operation of bearings. It not only affects the performance and life of the bearing, but is also directly related to the overall stability and durability of the mechanical equipment. Therefore, correctly measuring and adjusting bearing clearance is the key to ensuring the normal operation of mechanical equipment. Appropriate bearing clearance is the guarantee for the long-term stable operation of our equipment.

How to judge whether the bearing can be used again?

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Bearings are important components in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during

its movement, and ensure its rotation accuracy.

New bearings aside, how do we tell if an old bearing is ready to be used again?

First of all, carefully investigate and record the removed bearing and its appearance, clarify and investigate the remaining amount of lubricant, and carefully clean the

bearing after sampling.

Secondly, check the condition of the raceway surface, rolling surface and mating surface, as well as the wear status of the cage, etc. for damage and abnormalities.

To determine whether a bearing can be used again, the decision must be made after considering the degree of bearing damage, machine performance, importance, operating

conditions, and inspection intervals.

If damage or abnormality is found in the bearing, the cause should be identified promptly and countermeasures should be formulated. If the inspection results show the

following defects, the bearing can no longer be used and needs to be replaced with a new one.

  1. There are cracks and fragments in any of the inner and outer rings, rolling elements, and cages.
  2. Any of the inner and outer rings or rolling elements is peeled off.
  3. The raceway surface, ribs, and rolling elements are obviously jammed.
  4. The cage is severely worn or the rivets are loose.
  5. The raceway surface and rolling elements are rusty and scratched.
  6. There are obvious indentations and scratches on the rolling surfaces and rolling elements.
  7. There is creep on the inner diameter surface of the inner ring or the outer diameter of the outer ring.
  8. Overheating can cause severe discoloration.
  9. The sealing ring and dust cover of the grease-sealed bearing are seriously damaged.

Characteristics and application experience of plastic bearings

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Plastic bearings are a common type of bearing, usually made of plastic materials. Plastic bearings have the advantages of light weight, low friction, low cost, easy processing and easy replacement, so they have been widely used in many fields.

  1. Performance of plastic bearings

1.Lightweight: Plastic bearings weigh less than metal bearings, so they can move and rotate more easily.
2.Low friction: Plastic bearings have a lower friction coefficient than metal bearings, thus reducing energy loss and wear.
3.Low cost: Plastic bearings are cheaper to manufacture than metal bearings, thus reducing the cost of the product.
4.Easy to process: Plastic bearings are easy to process and manufacture, so they can be quickly produced in a variety of types and sizes.
5.Easy to replace: Plastic bearings are easy to replace, so repairs and replacements can be completed in a short time.

2.Application experience of plastic bearings

1.Choose the right plastic material: Different plastic materials have different performance characteristics, so you need to choose the right plastic material according to the specific application scenario. For example, polyoxymethylene (POM) has good wear resistance and high temperature resistance, and is suitable for high load and high temperature environments; polycarbonate (PC) has high strength and impact resistance, and is suitable for occasions that need to withstand shock and vibration.

2.Determine the appropriate size and type: Different sizes and types of plastic bearings have different properties and uses. Therefore, it is necessary to select the appropriate size and type according to the specific application scenario. For example, miniature plastic bearings are suitable for small machinery and precision instruments; round plastic bearings are suitable for occasions that need to bear larger loads.

3.Proper installation: Improper installation of plastic bearings can lead to wear and failure. Therefore, plastic bearings need to be installed correctly according to the instructions or the guidance of professionals.

4.Maintenance: Plastic bearings require regular maintenance, including cleaning, lubrication, etc. Proper maintenance can extend the service life of plastic bearings.

3.Common problems and solutions of plastic bearings

1.Wear: Wear of plastic bearings is mainly caused by long-term use, improper installation or material aging. The solution is to replace the plastic bearing with a new one and install it correctly according to the instruction manual or the guidance of a professional.

2.Stuck: Stuck plastic bearings may be caused by impurities entering the inside of the bearing, improper lubrication or material aging. The solution is to clean the inside of the bearing, replace the appropriate lubricant, and pay attention to using the correct installation method.

3.Crack: Cracks in plastic bearings can be caused by excessive load, material aging, or poor processing. The solution is to replace the bearing with a new plastic one, and pay attention to selecting appropriate materials and processing methods.

As a common bearing type, plastic bearings have the advantages of light weight, low friction, low cost, easy processing and easy replacement, so they have been widely used in many fields.

When using plastic bearings, you need to pay attention to selecting the appropriate plastic material, determining the appropriate size and type, correct installation and maintenance, in order to extend the service life of the plastic bearing and improve its performance. At the same time, we need to pay attention to the common problems and solutions of plastic bearings to ensure their normal operation, safety and reliability.

How do you assemble a cross roller bearing?

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  1. Definition of crossed roller bearings

Crossed roller bearing is a special high-performance rolling bearing. Its characteristic is that the two rows of rollers inside the bearing are arranged at a 90-degree cross, which makes the bearing have higher rigidity and stability when bearing radial load and axial load. This kind of bearing has high dynamic load bearing capacity, low friction coefficient, and excellent rotation accuracy. It is widely used in various high-precision, high-load, and high-speed mechanical systems.

  1. Application scenarios of crossed roller bearings

(1) CNC machine tools: CNC machine tools have extremely high requirements for rotation accuracy and dynamic performance. Crossed roller bearings can provide stable and precise support for the machine tool spindle, improving the machine tool’s processing accuracy and production efficiency.
(2) Industrial robots: Industrial robots require high-precision and high-rigidity rotating joints. Crossed roller bearings can provide excellent rotation performance and load capacity and are important components of robot joints.

(3)Aerospace: In the aerospace field, crossed roller bearings are widely used in key parts such as main shafts and servos of various aircraft due to their high precision, high speed and high load capacity.
(4)Precision instruments: Precision instruments have extremely high requirements for rotation accuracy and dynamic performance. Crossed roller bearings can provide stable and accurate support for the instrument and improve the measurement accuracy and stability of the instrument.

  1. Working principle of crossed roller bearings

The working principle of crossed roller bearings is different from ordinary rolling bearings. In ordinary rolling bearings, the rollers move linearly along the inner ring of the bearing, while in crossed roller bearings, due to the cross arrangement of the rollers, the rollers can produce bidirectional displacements in the axial and radial directions when bearing loads. Has better rigidity and stability. In addition, the rotation accuracy of crossed roller bearings has also been significantly improved, because the cross arrangement of the rollers causes the friction between the inner and outer rings to cancel each other out, reducing the friction loss and heating of the bearing.

  1. Installation method of crossed roller bearings

(1) Preparation work

Before starting to install crossed roller bearings, the following preparations need to be made:

1.Prepare the required tools and materials: crossed roller bearings, nuts, flat washers, lock washers, lubricants, cleaning agents, plastic or rubber hammers, measuring tools, etc.
2.Check the crossed roller bearings: Confirm that the bearings are not damaged, rusted, worn, etc., and check whether the mating surface is smooth.
3.Clean the case: Use cleaning fluid to clean the inside of the case to remove impurities and residues.
4.Prepare the installation surface: Apply lubricant inside the casing to reduce friction and improve installation efficiency.

2) Installation steps

1.Clean crossed roller bearings carefully
Due to the special structure of crossed roller bearings, their inner and outer surfaces need to be carefully cleaned before installation. Wipe the bearings with detergent and a clean cloth to ensure the surface is free of residue and dust. Pay special attention to keeping the mating surface clean to prevent impurities from affecting the installation effect.

2.Assemble the bearing so that the rings and rolling elements rotate
Assemble the rings and rolling elements of the crossed roller bearing to ensure free rotation. Pay attention to keeping the gap between the inner and outer rings of the bearing and the rolling elements even to avoid sticking. During assembly, no tools or knocks should be used to avoid damaging the bearings.

3.Apply a certain amount of pressure so that the bearing can be firmly installed on the casing
Install the crossed roller bearing on the casing through nuts and flat washers. Start by placing the flat pad inside the case, then gently place the bearing on the flat pad. Next, tighten the nut and apply some pressure so that the bearing can be firmly installed on the casing. When tightening the nut, the force should be kept moderate to avoid damaging the bearing and mating surface.

4.Carry out post-installation inspection and debugging to ensure the bearings work smoothly
After completing the installation, the following inspections and debugging are required:

(1) Check the rotation flexibility of the bearing: Rotate the outer ring and inner ring of the bearing to ensure that they rotate freely without sticking.
(2) Check the mating surface: Check whether the mating surface between the bearing and the casing is tightly fitted to ensure there is no gap.
(3) Check the preload force: Adjust the preload force as needed to ensure that the bearing has appropriate preload force during operation.
(4) Debugging the lubrication system: Check whether the lubrication system is operating normally and ensure that the bearings are fully lubricated during operation.
(5) Trial operation: Carry out a trial operation test to observe whether the operating status of the bearing is normal. If there is abnormal sound or vibration, stop the machine immediately to check and troubleshoot.

Classification and application of ceramic bearings

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Ceramic bearings are bearings made of high-tech materials with excellent performance and a wide range of applications. Its emergence has brought revolutionary changes to the

development of modern industry.

  • Classification of ceramic bearings

Ceramic bearings can be divided into different types according to different classification methods. According to different materials, they can be divided into alumina ceramic

bearings, silicon nitride ceramic bearings, silicon carbide ceramic bearings, etc.; according to different shapes, they can be divided into spherical ceramic bearings,

cylindrical ceramic bearings, conical ceramic bearings, etc.; according to size Different from each other, they can be divided into micro ceramic bearings, small ceramic

bearings, large ceramic bearings, etc.

  • Performance of Ceramic bearing

High wear resistance: The surface hardness of ceramic bearings is higher than that of metal bearings, and they have stronger wear resistance, which can effectively extend the

service life of equipment.

High temperature resistance: Ceramic bearings can maintain stable performance in high temperature environments and are suitable for mechanical equipment in high temperature

environments.

Corrosion resistance: Ceramic bearings have high resistance to corrosion by chemicals such as acids, alkalis, and salts, and are suitable for equipment in chemical industry,

medicine, and other fields.

High precision: Ceramic bearings have higher precision than metal bearings and are suitable for high-precision mechanical equipment.

Light weight: Ceramic bearings are lighter than metal bearings and are suitable for lightweight mechanical equipment.

  • Applications of ceramic bearings

Ceramic bearings are widely used in various fields due to their excellent performance. The following are the main application areas of ceramic bearings:

Industrial field: Ceramic bearings are widely used in various industrial machinery and equipment, such as compressors, electric motors, gearboxes, etc.

Medical field: such as medical equipment, pharmaceutical manufacturing equipment, etc.

Aviation field: such as aircraft engines, reducers, etc.

Automotive field: such as automobile engines, transmissions, etc.

Food processing field: such as food processing machinery, kitchen equipment, etc.

In short, as a component made of high-performance materials, ceramic bearings have excellent performance and wide application prospects, making them an important support for

the development of modern industry. with science

With the continuous advancement of technology and changes in market demand, ceramic bearings will show broader prospects in future development.

Inspection, installation and cleaning methods of motor bearings

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Inspection and installation methods of motor bearings：

1.Before inspecting the bearing, first remove the old lubricating oil from the inner and outer small covers of the bearing, and then clean the inner and outer small covers of the bearing with a brush and gasoline. After cleaning, clean the bristles or cotton filaments and do not leave them in the bearing.

2.Carefully inspect the cleaned bearings. The bearings should be clean and intact, without overheating, cracks, peeling, grooves, impurities, etc. The inner and outer raceways are smooth, and the clearances everywhere are qualified. If the support frame is loose and causes friction between the support frame and the bearing sleeve, Bearings should be replaced with new ones.

3.After maintenance, the bearing should rotate flexibly without jamming.

4.Check that there is no wear on the inner and outer small covers of the bearing. If there is wear, the cause should be found out and dealt with.

5.The fit between the inner sleeve of the bearing and the shaft should be tight, otherwise it should be dealt with.

6.When assembling a new bearing, use oil heating or eddy current heating to heat the bearing. The heating temperature is preferably 90 to 100°C. Set the bearing on the motor shaft at high temperature and ensure that the bearing is assembled in place. It is strictly forbidden to heat the bearing in a cold state. Go up to avoid damaging the bearings.

Motor bearings should generally be cleaned and refueled after 2,000 hours of use. There are two methods for cleaning motor bearings:

1.Hot oil cleaning method

Mainly use soft dry oil or anti-rust paste to harden motor bearings. They should be immersed in hot engine oil at 100-200°C. Clamp the motor bearings with pliers and use a brush to clean the oil stains on the motor bearings. Soft dry oil or anti-rust paste melts when heated to 100-200°C, and is easily washed out from the gaps in the motor bearings. Sometimes as long as the motor bearing is shaken in the oil many times, the oil dirt will flow away from the gaps.

When cleaning the centripetal spherical motor bearings of the motor, the balls, bead frames, and inner rings should be turned laterally out of the outer ring and then immersed in hot oil. When cleaning the short cylindrical roller motor bearings, the rollers, beads should also be removed. The frame, inner ring and outer ring are detached.

During hot oil cleaning, the bearing temperature of the oil should not exceed 200°C. If an open flame is used for direct heating, care should be taken to prevent the oil from burning. The motor bearings should be suspended in the oil pan. If they sink to the bottom, they will cause overheating and reduce the hardness.

2 General cleaning method

Soak the motor bearings in kerosene for 5-10 minutes. Hold the inner ring with one hand and rotate the outer ring with the other hand. The dry oil or anti-rust paste on the motor bearings will fall off. Then put the motor bearings into cleaner kerosene, scrub with a soft brush to clean the oil in the balls and gaps, then put them in gasoline to clean them once, take them out and put them on clean paper.

When cleaning radial ball motor bearings and short cylindrical roller motor bearings, the balls, ball frames, inner rings and outer rings should be separated and cleaned. The motor bearings mounted on the shaft are mainly cleaned by spraying oil or spraying with an oil gun. Oil stains that are easy to be cleaned are first treated with kerosene and then gasoline; oil stains that are difficult to be cleaned are first sprayed with hot engine oil at 100-200°C. Wash or spray with oil gun, then clean with gasoline. Be careful not to use sharp tools to scrape hardened grease or rust on the motor bearings to avoid damaging the motor.
Check the smoothness of the rolling elements and groove rings of the motor bearings. Clean the motor bearings and wipe them dry with a clean cloth.

What is thrust bearing and where it is used?

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Thrust bearings are an important type of bearings and are widely used in various machinery and equipment. The main function of thrust bearings is to bear axial loads, such as compressors, pumps, turbines, etc. In these equipment, thrust bearings need to withstand a large amount of axial force to ensure normal operation of the equipment.

Thrust bearings are mainly composed of thrust rings, cages, rolling elements and ferrules. Among them, the rolling element is the core component of the thrust bearing, usually using a spherical, cylindrical or conical design. The rolling elements roll between the thrust ring and the ferrule to transmit axial load. The function of the cage is to maintain the position of the rolling elements and guide the rolling elements to roll between the ferrule and the thrust ring. The ferrule is the fixed part of the thrust bearing, which is connected to the main shaft of the equipment to transmit axial load.

Application range of thrust bearings

1.compressor
Thrust bearings are widely used in compressors. For example, in a centrifugal compressor, the thrust bearing needs to withstand a large amount of axial force to ensure the normal operation of the compressor. Thrust bearings are usually mounted on the shaft end of the compressor to prevent axial movement. During the operation of the compressor, the thrust bearing needs to withstand the axial force generated by the impeller to ensure the stable operation of the compressor.

2.Pump
Thrust bearings are also widely used in pumps. For example, in petrochemical pumps, thrust bearings need to withstand a large amount of axial force to ensure stable operation of the pump. Thrust bearings are usually installed at the end of the pump shaft to prevent axial movement. During the operation of the pump, the thrust bearing needs to withstand the axial force generated by the impeller to ensure stable operation of the pump.

3.Turbine
Thrust bearings are also widely used in turbines. For example, in steam turbines, thrust bearings need to withstand a large amount of axial force to ensure the normal operation of the steam turbine. Thrust bearings are usually installed on the shaft ends of steam turbines to prevent axial movement. During the operation of the steam turbine, the thrust bearing needs to withstand the axial force generated by the blades to ensure the stable operation of the steam turbine.

4.Other application areas
In addition to the above application fields, thrust bearings are also widely used in various mechanical equipment in electric power, metallurgy, chemical industry and other fields. For example, in wind turbines, thrust bearings need to withstand the axial force generated by wind; in rolling mills, thrust bearings need to withstand the axial force generated by rolling. In these equipments, thrust bearings play an important role.