The working principle and working way of the slewing bearing

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Slewing bearings are widely used in machinery, such as excavators, disintegrators, stackers and reclaimers, graders, road rollers, and roadheaders. Not only that, but also in new energy equipment, amusement equipment, metallurgical equipment, etc. It also has its application in China, so what is the working principle and working method of the slewing bearing? Below, the editor will take you to understand some knowledge about slewing bearings, you can learn and understand.

First, the working principle of the slewing bearing
The working principle of the slewing bearing is to move the object from sliding to rolling to reduce frictional resistance. It mainly relies on lubrication and friction to achieve the purpose of operation. Internally, it relies on the mutual friction of balls and steel rings. The friction between the bearing and other parts runs, rubs against each other, and drives the object to operate. Although it relies on friction to operate, lubrication is also indispensable. If it is used for a long time and the friction is too large, it will also affect the application of parts. Therefore, after using this kind of bearing for a period of time, it should be maintained in time. , brush some lubricating oil.

Single row ball slewing bearing 01 series
2. How the slewing bearing works

1. Point contact scrolling
The working principle of point contact rolling is mainly used for four-point contact ball slewing bearing and crossed roller slewing bearing. This working principle has higher requirements on the quality of steel balls for the combined bearing of point contact radial and axial forces, and the angle of the track should be uniform.

2. Rolling and sliding combined rolling type
The rolling-slip combined rolling working principle is mainly used for ball-column combined slewing bearings. This principle has small eccentricity and long service life, and has the advantages of a dual structure of rollers and balls.

3. Surface contact rolling and sliding combination
The working principle of surface contact rolling and sliding combination is mainly used for turntable bearings. Now the new type of turntable bearing has a compact structure and high precision, so it is suitable to use the surface contact rolling and sliding combination.

4. Surface contact rolling combination
The surface contact rolling combined working principle is mainly used for three-row roller slewing bearing, its advantage is that the contact surface is large, the bearing force is uniform and the rolling is flexible.

The above is the working principle and working method of the slewing bearing. I hope it will be helpful to you. Our Hengguan Bearing mainly deals in slewing bearings, slewing bearings, and slewing bearings. If you have any questions or needs, please contact us. Hengguan Bearing is looking forward to you. call.

Working principle and working method of slewing bearing

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The turntable bearing is widely used in mechanical applications, such as excavators, disinctures, stack assemblers, flat, road rollers, and excavators, but not only that, in new energy equipment, amusement equipment, metallurgical equipment, etc. There is also its application, then what is the working principle and working mode of the turntable bearing? Below, Xiaobian takes everyone to learn about some knowledge about turntable bearings, you can learn about it.

First, the working principle of turntable bearing
The working principle of the turntable bearing is to move the object to the object, reducing the frictional resistance, mainly relying on lubrication and friction to achieve the purpose of operation, internally, with the mutual rubbing of the ball and the steel ring, relying on the rotary support at the outside The bearing is operated with the frictional force of the other components, and frictions with each other, and the object is operated. Although it is necessary to operate with friction, it is indispensable. It has been used for a long time. The friction is too large, and it will affect the application of parts, so after a period of use, it is necessary to maintain it in time. , Brush some lubricants.

Single rolled rolling bearing 01 series
Second, the working method of turntable bearing

1, point contact rolling
Point contact rolling work is mainly used for four-point contact ball turntable bearing and cross roller turntable bearing, which with a high demand of point contact radial axial force is high, and the track is uniform.

2, sloppy combination rolling type
The rolling combination rolling working principle is mainly used in the joint rotation support of the ball column. This principle is small, long life, and has the advantages of roller and dual structure.

Is it normal for the bearing to vibrate?

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Is it normal for the bearing to vibrate? In addition to some vibrations that may exist in normal operation, the shaking of the bearing during operation may require attention, which may reflect the possible problems of the bearing. Let’s learn about it with the editor of Hengguan.

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  1. Is it normal for the bearing to feel shaking?

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Bearing shaking needs to observe the amplitude of shaking. Slight shaking may be caused by the resonance between the bearing and the machine during the operation of the equipment. Shaking within the allowable range is normal, but the vibration frequency or speed is too large, or the bearing is installed opposite to the bearing. For machinery with high precision requirements, adjustment and maintenance are required.

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The bearing vibration (acceleration) is divided into four grades: Z, Z1, Z2, and Z3; the bearing vibration (speed) is divided into four grades: V, V1, V2, and V3.

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Z and V grades are suitable for the vibration inspection of deep groove ball bearings within the scope of the standard by bearing manufacturers; Z1 and V1 grades are suitable for the inspection of bearing products with general requirements for bearing vibration; Z2 and V2 grades are suitable for Y series motors and Other motor bearings with corresponding requirements; Z3 and V3 grades are suitable for higher precision requirements when there are strict requirements for vibration.

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  1. Reasons for bearing shaking
  2. The mounting bolts are loose, causing shaking during work. In case of shaking when the slewing bearing is working, firstly check all the inner and outer ring mounting bolts immediately. Check for looseness and tighten as required.

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  1. The rigidity of the steel structure supporting the slewing bearing is not enough, and elastic deformation occurs during loading, causing the slewing bearing to shake as a whole, increasing the strength of the steel structure supporting the slewing bearing by 14 times.

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  1. Check whether the operation is overloaded. Overloading will also cause the slewing bearing to shake. Therefore, it is necessary to operate in strict accordance with the regulations.

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  1. Long-term overload operation will lead to the crushing of the raceway and the clearance is too large. If such a situation occurs, please notify the after-sales service of the slewing bearing to make adjustments to ensure the normal use of the slewing bearing. In short, in order to ensure the normal use of the slewing bearing, if shaking occurs during use, it must be stopped in time for inspection to prevent long-term shaking from causing greater damage to the slewing bearing.

Slewing bearing

Three, bearing shaking solution

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  1. Clean the bearing housing and replace with a new oil seal.

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  1. Install a protective dust cover and improve the oil seal.

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  1. Check the bearing box, adjust the support surface and adjust the gasket.

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  1. Detect the shaft diameter, select the appropriate amount of fit, and re-lock the adapter sleeve.

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  1. Replace the bearing housing with the hole diameter that meets the design requirements.

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  1. Readjust the shims so that the shaft centers are coupled on the same straight line.

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I believe that after reading the above content, you will know whether it is normal for the bearing to shake. The editor of Hengguan Bearing also introduces the reasons and solutions to the shaking. I hope it will help you. Of course, in addition to this, we Attention should be paid to the abnormal conditions encountered during the use of the bearing so as not to affect the normal use of the bearing.

Cold treatment process and role of bearing sleeve

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The cold treatment of the bearing sleeve mainly refers to a processing process after the bearing material after forging heat treatment, mainly by staying in an environment after the quenching is placed in an environment where the quench is restored for a period of time, this process is called cold treatment, and the following turntable Everyone introduces the role of the cold treatment of the bearing ring and related process.
Be
First, the effect of cold treatment Be Precision bearing is high in size stability; after the ferrule quenching (especially grading), the internal tissue still retains more residual austeel, which is unstable, in storage and use bearing In the process, it will continue to change, thereby changing the accuracy of the bearing. For this purpose, a cold treatment process is used, which reduces the residual bombs in the tissue and slightly improves the hardness of the part.
Tuto bearing
Second, cold treatment process and requirements
1. After quenching, stay at room temperature: After quenching, be sure to make cold treatment inside and outside the ferrule, otherwise it is easy to crack, cold to room temperature, cold treatment (generally no more than 30 minutes), otherwise it will stop the austenite The transformation of the hometown.

2, cold treatment temperature: The temperature of the cold treatment is mainly based on the martensite transition temperature MF of the steel, and the impact of cold treatment on mechanical properties and processability is considered. For GCR15 steel, cold treatment is used to use -70 ° C; when the accuracy requires less than a ferrule or device, the cold treatment temperature can be selected from -40 to -70 ° C; ultra-precision bearing, can be at -70 ° C ~ -80 ° C Cold treatment is carried out. Overcloowise temperature affects the bearing impact fatigue and contact life.

3, cold treatment insulation: Although the change in mass martensite is completed when it is cold to a certain temperature, but in order to make a batch of ferrule surfaces and the center of the center, there is a certain holding time, generally 1 to 1.5 h.

4, the cold treatment after cold treatment: After the ferrule is cold, placed in the air, and the temperature is slow to rise to the room temperature. Wenheng can’t be too fast, otherwise it is easy to crack; tempering time, otherwise the residual stress inside the ferrule can cause the ferrule crack, generally no more than 2 hours.

Who makes the slewing bearing for pelletizer the best in China

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Recently, Luoyang Hengguan Bearing Technology Co., Ltd. (hereinafter referred to as Hengguan Bearing), designed and manufactured for a large group company in Northeast China, the special slewing bearing for the 6-meter disc ball machine (ball-forming disc) has been successfully completed and passed the test of finished product. It has been sent to a third-party construction site for installation and trial operation.

The disc pelletizer refers to the equipment used to manufacture green balls in the pellet production process. Disc pelletizers are widely used in non-ferrous metallurgy, cement, steel, fertilizer and other industrial fields. In the process of application, the design of disc pelletizers has been continuously innovated and perfected, so that the disc pelletizers have reliable functions. , High-quality equipment with rigorous structure, excellent effect, less wear, low energy consumption and easy maintenance. The new disc pelletizing machine is mainly composed of disc body, transmission system, slewing bearing, rotary scraper device, disc body inclination adjustment device, lubrication system and other parts. This time, Hengguan Bearing mainly manufactures one component of the slewing ring bearing. Hengguan Bearing has produced 6-meter and 7.5-meter ball machine slewing ring bearings.

The slewing ring bearing of the 6-meter ball machine is designated by the owner of our company’s slewing ring bearing, and the ball machine manufacturer is entrusted to purchase it. Since the owner’s on-site ball machine has been shut down due to a problem with the slewing ring, a new set of slewing ring bearings is urgently needed for replacement, so as to resume normal operation as soon as possible. After receiving the order, our company immediately arranged the time to put materials into production; and made innovations and improvements based on the actual use of the old slewing ring bearings on site. Shipped smoothly within 25 days.

For the on-site problem (1) the slewing bearing is prone to jam and standstill during the operation; this phenomenon occurs because the ball machine is not running horizontally when it is in working state, but during the operation. It is caused by a certain angle of inclination; in the normal slewing bearing raceway, it is composed of rolling elements and spacer blocks; when all rolling elements are tilted and transported, due to the action of gravity, it will cause extrusion, jamming, standstill, etc. condition. Hengguan Bearing has innovatively improved the slewing bearing cage, so that each rolling element can keep rotating in place, so that this problem can be easily solved.

For on-site problems (2) the oil leakage of the raceway is serious when the slewing bearing is running; due to the inclined operation of the slewing bearing of the ball machine, the ordinary rubber sealing strip is not tightly sealed, and the raceway leaks under the action of gravity. The oil phenomenon is serious, which is not good for bearing lubrication. In response to this phenomenon, the engineers of Hengguan Bearing proposed to use a double-layer special seal, the internal use of the secret palace type wool seal, and the outer ring to be sealed with a steel plate by direct pressure; the on-site oil leakage phenomenon was properly solved.

There are always more solutions than difficulties. Hengguan Bearing, aiming at the actual use of slewing bearing, solves the problem; constantly emancipates the mind, enhances the sense of innovation, the spirit of innovation and the ability of innovation. Achieve innovation in work ideas, innovation in goals and tasks, and innovation in work measures. By innovating the working mechanism, constantly adapting to new situations, studying new situations, summarizing new experiences, exploring new laws, expanding their brainpower, and improving work quality and efficiency, Hengguan people strives for each set of slewing ring bearings that leave the factory to make customers satisfy. Our aim is: to solve problems for customers, to create value, to be a valuable enterprise! Hengguan Bearings, intelligently create the future, only work hard for high-quality slewing ring bearings!

How to clean the slewing bearinig ? What are the scope of its application?

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Mechanical work by the inevitable intrusion of dust and impurities, as a heavy machinery or equipment used in large bearings, each having its own rotary bearing mounting hole, and lubricating oil holes sealing means, but still be affected complex environment. Once raised properly, may cause mechanical member rotatable with the debris into the interior of the rotary support, the increased friction between the rotary support and related accessories, forming the movable catching phenomenon may even lead to a mechanical stop. So you need to master the operation management method of cleaning, clean the impurities to protect production machinery is running.

Deposition can not be cleaned in a rotary bearing raceways dust, resulting in clogging of the oil injection duct, stuck in the roller track. Adding auxiliary equipment using the temporary high pressure descaling fluid injection into the rotary bearing, by repeating the rotation, so that relative movement between the sub-friction rotary bearing, the grease deposited on the inner race, the dust clean. After the injection of oil into the clean slewing, the descaling fluid clean.

Regular check-related accessories slewing ring is necessary, impurities intrusion protection accessories or damage caused by improper use of lubricants will have a large slewing ring consumption and shorten life.

Slewing range of applications is very wide, we look at what it can be used in place of it below!

1, lifting machinery

Lifting has included cranes, tower cranes and trailers, etc., because these machines use environment is more severe, rotating parts are often severely affected, so these sites will be used to customize the slewing ring, such as to Xuzhou Wanda slewing bearing manufacturers to provide jobs and environmental dimensions required for the machine, slewing bearing manufacturers combined with the actual situation will arrange for engineers to design in line with the bearing, and then put to use, not only to meet the needs of lifting machinery, but also make use of life is greatly enhanced.

2, construction machinery

Simple mechanical engineering division is like excavators, loaders. Slewing bearing capable of withstand the axial and radial forces and overturning forces and very compact, an excavator in the job and requires continuous core member is rotated, the rotary bearing is rotated. Application of the construction machinery applications belongs to the basic slewing ring, is more widely used.

3, processing machinery

Processing machinery like material processing, food processing, metallurgy, etc.,. With the continuous development of technology, people are not satisfied only the slewing ring used in engineering machinery, instead looking to the device platform processing machinery. Because the slewing bearing more compact than the original, may be subjected to an external force greater, more performance and good structure, so that the processing machine also has multiple applications.

4, military equipment

Competition is now military hard power of military equipment, as we see on television as the tanks turned the gun head, a shell hit the target accurately, this session is slewing ring plays a good supporting role; as well as artillery, radar, rocket launchers, etc., timely and stable rotation jump in launching military equipment is very important structural slewing ring, compared to conventional bearings have a good performance.

5. Other

In addition to connecting portions revolving bearing in industrial and medical applications, etc. In addition, in the field of power generation and the life has its shadow, the wind turbine tower and the yaw bearing is mounted in the cockpit, the pitch bearing mounted on the root of each blade and the hub connecting portion. Each wind turbine pitch bearing and a yaw bearing three. By application of slewing on the wind power plant, may be implemented in different process implemented to change the wind power generation, in the process, the root of the blade portion associated therewith is embodied swivel support bearing. Aspects of life slewing ring main applications focused on the playground, like a Ferris wheel, roller coaster, carousel and large pendulum clock, etc., the application of the slewing ring life safety has been well protected.

The above is how to organize small series of slewing ring contaminated debris clean-up as well as the entire contents of its scope of application, hoping to be helpful to everyone. Constant crown bearing, customer demand-oriented, be flexible customization to meet the real needs of customers and innovative sophisticated. Constant crown bearing, made Moses future, only high-quality slewing ring bearings and work!

Drawing pile drum slewing bearing selection and use

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The pushing machine is to utilize vibration, static or hammering action to pull the pile of the formation of the formation of the formation of the formation. The pilot operation is often used to vibrate pile driver, static pressure pile machine or double-active hammer, and then equipped with pile frame and rigging, so it is also known as vibration sinking pile machine and static press pile machine. The use of swinging on the pile driver is or is the power element of the upper body and the underwriting body to perform the relative swivel movement, then how specifically uses it? Let’s introduce you to you.

1. Selection of pile drum rotation support
Be
The pile drum rotation supports the rotation of the device through friction and lubrication, and can drive the mechanical rotation in the pile drum, provide support capabilities, mainly rotating, supported, to withstand axial, radial, tip, and impact Loads, since the quality requirements of the rotary support are relatively high, and the two-volleyball-type rotary support is generally selected when selecting the rotary support type, which is fastened to withstand a large axial force and torrent torque.
Pumped pile driver
2, method of use of pile driver rotary support
Be
Pumped pile drivers are rotated similar to the use of pile drivers and excavators, and the rotary support is a force element that is on the vehicle body and the underwriter to support the vehicle body and to withstand the working load. The inner seat is connected to the vehicle body, the outer race is connected to the vehicle body, and the inner ring on the inner seat is engaged with the rotary motor pinion. When the rotary motor is rotated, the carriage is driven by the pinion. The rotary support of the pile driver uses an internal teeth rotation, because there is a hit load, and the general tooth surface is hardened.
Be
When the pile driver is more common in the construction, the pile of the pile is fixed to the pile head, and the pile driver is suspended in the hook by the spring absorbers and rigging. Causes pile and soil resonance, soil structure damage, the friction between the pile body and the soil is reduced, and the pendulum is tightened, and the pile is gradually pulled out. If the eccentric block vibrator is used, the eccentric block must be adjusted due to the difference in the resistance between the sink and the pile. Such pulling pile equipment is simple, high-pull pile efficiency, and development prospects.
Be
Hydraulic pile driver uses its clipper to clamping the pile head, the hydraulic cylinder forces the top pressure clipper, so that the top is rising from a distance, pull the piles, and apply the pile to the clay, sand or the soil Copstanding paper or steel piles in the layer. There is also a mechanical method to pull the pile, that is, driven the hoist by the motor, and pulls the pile to force the floor using the tension of the wire rope pulley. It is convenient to use, low cost, but the pile strength is not large, the equipment is cumbersome, and the push pile is low, only for soft land layer construction. Using the double-acting steam hammer, the hammer is inverted, fixed to the pile head, and hang it under the rigging, first shake the soil, reduce the tightness of the pile and soil, then start the steam hammer, hammer up Vibration, tightening the rigging, gradually pulling the piles, can be pulled with concrete piles and other piles in various soil layers.
Be
In general, the pushing machine is a large mechanical equipment, like the excavator crane, which produces a large working load and friction during the rotation, and the ordinary bearings cannot meet the needs of large-scale mechanical equipment, so it needs to be used. Go to the rotary support, and to customize according to the actual situation when selecting the model, a special process can be performed on some wear, and the quality of the rotary support is increased.

Successful installation and commissioning of high-precision double-row cross roller bearings

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At the beginning of this month, Luoyang Hengguan Bearing Technology Co., Ltd. (hereinafter referred to as Hengguan Bearing) provided a customer in Zhejiang with high-precision double-row crossed cylindrical roller slewing bearings for machining rotating platforms. All indicators have met or exceeded At the request of the purchaser, it was successfully delivered to the purchaser; the installation and commissioning has been successful, and the banknote printing mode is turned on for the purchaser.

 

This slewing ring bearing belongs to the rare double-row cross-roller structure on the market. It is different from the conventional single-row four-point kick structure, double-row ball structure, single-row cross roller structure, and three-row cylindrical roller structure on the market. The big structure is completely different.

 

The service tenet of Hengguan Bearing is to quickly respond to customer needs, provide excellent technical solutions in a shorter time, and solve engineering problems safely and effectively for customers. This product is an upgraded product of the first generation of bearing products. According to customer feedback, the first generation of bearing products have poor rigidity after being installed and deformed after being stressed, causing the equipment to lose accuracy. After receiving the customer’s consultation call, our company quickly arranged an engineer to connect with it. , Carry out all-round technical communication and diagnosis. Starting from the customer’s working conditions, load-bearing, speed, use requirements, etc., after several modifications, a very difficult double-row cross-roller structure was selected. This new double-row cross-roller structure has good rigidity, heavy bearing capacity, and is not easy to deform. Such advantages have overcome the shortcomings of the first generation of single-row cross rollers. The product was scheduled for 40 days and shipped smoothly; when the final product was inspected, the inner and outer ring end pendulums were 0.015, the clearance is 0, the diameter pendulum is 0.02, and the outer diameter is 1520mm; our company has overfulfilled the task and all the parameters are all Has met or exceeded the customer’s confirmed drawing requirements. At present, the product has been delivered to the customer, and has been successfully installed and commissioned and put into operation.

 

Innovation is the driving force of development. To grasp innovation is to grasp development, and to seek innovation is to seek the future. Hengguan Bearing continuously carries out technological innovation, and always insists on giving back to customers with dedicated service. We have the courage to challenge every technical problem, and cooperate with today’s ever-changing industrial production needs 24 hours a day, with fast response and flexible and thoughtful service to ensure effective solutions and excellent quality assurance.

 

Hengguan Bearing’s all efforts are to provide customers with better products and service experience, and create greater value for customers. The mutual benefit and win-win situation of both customers and us are the root of the company’s long-lasting prosperity! Hengguan Bearing, intelligently creates the future, and is only a provider of excellent products and dedicated services!

The production of high-speed silent slewing ring bearings was successfully completed

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Recently, the high-end slewing bearing for medical CT machine designed and produced by our company for Middle East customers has been successfully rolled off the production line, and all the indicators of the finished product have passed the inspection.

For the CT machine special slewing bearing bearing, we and the Iranian CT machine manufacturer, after more than a month of full technical communication, understand the various technical requirements of the customer, and calculate the bearing capacity and service life according to this requirement. Technical parameters, confirmed the production drawings. This product has an outer diameter of 1180mm and an inner diameter of 980mm. It has a toothless four-point contact ball slewing bearing structure with P5 accuracy. It is a high-end precision slewing bearing; and because it is medical, it has extremely high requirements for noise reduction.
High-speed silent slewing bearing 　　According to the actual working conditions of customers, our technical engineers actively improve the product processing technology, and strive to make products that meet the actual needs of customers. First, the 42CrMo quenched and tempered material is used to make the material performance better and more stable, which guarantees the product quality from the source; secondly, the product raceway and appearance are comprehensively polished to ensure high product precision; thirdly, for the product’s silent requirements, A special segmented nylon cage device is used to lock the ball in the cage pocket while ensuring that the steel ball can rotate freely, thereby reducing the noise impact caused by the free movement of the cage in the raceway. Reduce rotating noise. Through the above efforts, we ensure that the finished products of the slewing ring meet various technical requirements.

After the finished product came out, after trial assembly test, it has fully met the requirements of the confirmed drawings of both the customer and us, and the rotation is flexible and light, and the rotation is silent. At present, this product is already on the way to customers. I believe that made in China will amaze foreign customers and win glory for the country! Hengguan Bearings actively responds to the call of President Xi and develops manufacturing in China towards high, precise and cutting-edge development!

The vision of “Let the world fall in love with Made in China” is not only a slogan, but also implemented in practical actions. It requires countless Chinese companies to constantly challenge themselves technologically and seize the right to speak for China in the core field of manufacturing. In the era of high-tech industry, only Chinese manufacturing can win the “tough battle” and truly realize “Let the world fall in love with Chinese manufacturing!” We Hengguan people carry this great dream and actively practice it! The road is long and long, Hengguan people will persevere in pursuit! May you and I walk along this great journey…

What are the characteristics of the cross wave roller slewing bearing?

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Roller slewing bearing are one of the main types of crossed roller bearings. They are composed of two races, optional rollers at the cross-rotating position, retaining (isolation block), sealing device and other components. Such as the waist rotation of robots, automated robots require precise rotation of rotating disks, welding station turntables, large-diameter rotating disks, large-diameter towers, and automobiles and other mechanical equipment. Next, let’s follow the editor to understand the characteristics of inertial roller slewing bearings.

1. Loads in all directions can be downloaded

The cross-rolling roller slewing bearing has only one row of rolling elements, but the rolling elements are short rolling elements, and the surrounding rollers roll at 90° cross. There are several raceways in the inner and outer rings, including the problem of which rollers and rollers are axial forces. , Adsorption simple axial force, sponge adsorption force, adsorption force and overturning ability. The length of the roller should be 0.5~1mm longer than its diameter. Integral structure, good embedded. .

2. Isolation block

Cross-rolling roller slewing bearings can be equipped with spacers or without spacers. Many foreign countries used in construction machinery can not be equipped with isolation blocks.

3. Adjustable clearance

Most of the cross-rolling roller bearings are made of parts to facilitate the installation of rolling elements and adjustment of the clearance. But there are also integral ones. Like four-point contact balls, the rubber filling holes are equipped to fill the rollers, and the options are used to adjust the axial movement. The rollers also need to be free after installation. There is always space between the rollers. When the full load direction is usually about 0.5.

4. Increase of effective compressed air

The internal structure of the cross-roller slewing bearing adopts the rollers to form a 90° cross-arrangement, and the rollers are separated from each other. The retainer isolation or isolation block can prevent the rollers from observing each other and effectively prevent the rotation lock. The increase. In addition, there will be no contact between the two rollers.

Single row cross roller slewing bearing

5. Centrifugal rotation

For non-standard roller bearings that cross at the same time, the outer circumference is a divided structure, and the gap can be adjusted. Even if preloading is applied, it can obtain a rotational movement.

6. Simple operation

After the divided inner ring or outer ring is installed with rollers and spacers, it is fixed with the cross roller ring to prevent complete separation, so the operation when installing the roller ring is very simple.

7. Prevent the roller from falling sideways

The cage eliminates the interconnection between the rollers and prevents the rollers from falling sideways, so that a stable rotating column can be obtained.

8. One place raises the air

Different from the use of double row thin angular contact ball bearings, the columns are arranged in a vertical cross, so the load in all directions can be controlled with a single cross roller ring, and the expansion is 3 to 4 or more.

The above is an introduction to the characteristics of wave roller slewing bearings. In fact, the characteristics and applications of structural roller slewing bearings are basically the same as those of four-point contact ball slewing bearings, except that the rolling elements are made of steel ball rollers, the rolling elements and the outer ring. The contact changes from point contact to line contact.