Slovakia PSL slewing bearing we can customized

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We supply OEM slewing ring to customer according to PSL standard and specification, the quality of our product is same as original PSL slewing ring bearing.

1.Slewing Bearing(O)
90-1z 20-0220-0184, 90-1z 14-0193-0152, 90-1z 12-0222-0440-1, 90-1z 14-0222-0440, 90-1z-10-0216-0177, 90-1z 14-0254-0168, 90-1z 10-0250-0176, 90-1z 20-0296-0151, 90-1z 25-0315-0487, 90-1z 20-0308-0298, 90-1z 14-0300-0378, 90-1z 14-0305-0218, 90-1z 30-0400-0488, 90-1z 16-0384-0210, 90-1z 30-0461-28-1, 90-1z 30-0461-28-2, 90-1z 30-0461-0125, 90-1z 30-0461-0260, 90-1z 30-0461-0278, 90-1z 30-0561-0432, 90-1z 40-0595-0480, 90-1z 30-0766-38, 90-1z 30-0832-15-1, 90-1z 30-0980-16-8, 90-1z 30-0980-0163, 90-1z 30-0980-0106, 90-1z 20-1210-0195, 90-1z 40-1584-0195, 90-1z 40-1815-0106, 90-1z 50-2071-0315, 90-1z 40-2248-55
2. Special slewing rings ( O )
2.1 Ball slewing rings :
9O-1B17-0183-0320, 9O-1B17-0183-0245, 9O-1B17-0183-0482, 9O-1B17-0183-0322, 9O-1B17-0183-0332, 9O-1B17-0183-0244, 9O-1B25-0310-0923, 9O-1B25-0310-0239-1, 9O-1B14-0225-0360, 9O-1B14-0225-0941, 9O-1B21-0310-0296, 9O-1B21-0310-0296HL, 9O-1B30-0360-0340, 9O-1B25-0408-0292, 9O-1B25-0410-0404, 9O-1B25-0410-0498, 9O-1B22-0414-0490, 9O-1B33-0460-0405, 9O-1B20-0405-0229, 9O-1B25-0440-0270, 9O-1B25-0270HL, 9O-1B25-0474-0293, 9O-1B1B25-0475-0289, 9O-1B22-0544-0429, 9O-1B25-0550-0272, 9O-1B25-0550-0272HL, 9O-1B20-0580-0228, 9O-1B20-0590-0271, 9O-1B20-0590-0271HL, 9O-1B20-0590-0510, 9O-1B20-0590-0510HL, 9O-1B20-0660-0132, 9O-1B22-0744-0498, 9O-1B13-0787-0230, 9O-1B17-0945-0426, 9O-1B35-1065-0747, 9O-1B36-1282-0422, 9O-1B25-1889-0127,
2.2 Cylindrical roller slewing ring :
9O-1Z10-0147-0376, 9O-1Z10-0225-0247, 9O-1Z10-0225-0456, 9O-1Z20-0344-0395, 9O-1Z10-0280-0432, 9O-1Z14-0305-0115, 9O-1Z22-0337-0416, 9O-1Z25-0384-0246, 9O-1Z14-0384-86, 9O-1Z25-0384-18, 9O-1Z25-0384-04038, 9O-1Z14-86-1, 9O-1Z14-0405-0137, 9O-1Z14-0405-0155, 9O-1Z25-0400-0143, 9O-1Z30-0461-28, 9O-1Z14-0405-0147, 9O-1Z14-0405-0148, 9O-1Z14-0530-0154, 9O-1Z16-0548-0338, 9O-1Z20-0550-0424, 9O-1Z30-0766-38-1, 9O-1Z10-0787-0262, 9O-1Z10-0980-16-3, 9O-1Z40-1621-0425, 9O-1Z40-2248-55-1

3. Cross roller slewing rings ( E ) :
9E-1Z14-0222-0430, 9E-1Z14-0254-0110, 9E-1Z14-0254-0119-1, 9E-1Z16-0310-0111, 9E-1Z16-0310-0111-1, 9E-1Z16-0310-0517, 9E-1Z25-0348-18-1, 9E-1Z30-0451-0126, 9E-1Z30-0451-0119, 9E-1Z20-0474-0100, 9E-1Z30-0508-0236, 9E-1Z25-0675-0145, 9E-1Z20-0730-0101, 9E-1Z30-0766-0214, 9E-1Z30-0823-37, 9E-1Z30-0823-15, 9E-1Z30-0823-15-2, 9E-1Z30-0823-80, 9E-1Z30-0823-15-3, 9E-1Z30-0980-0294, 9E-1Z36-1116-0237, 9E-1Z40-1121-0450, 9E-1Z40-1124-0436, 9E-1Z40-1250-0263, 9E-1Z50-1300-0231, 9E-1Z40-1584-26, 9E-1Z40-1584-26-1, 9E-1Z40-1584-0371, 9E-1Z50-1700-0232, 9E-1Z30-2345-0340-1

4.Special slewing rings ( E )
4.1 Ball slewing rings :
9E-1B20-0287-0499, 9E-1B20-0287-0442, 9E-1B32-0419-0398, 9E-1B45-0453-0505, 9E-1B32-0521-0459, 9E-1B32-0519-0496, 9E-1B30-0520-0500, 9E-1B45-0559-0455, 9E-1B45-0559-0348, 9E-1B45-0614-0453, 9E-1B20-0744-0448, 9E-1B45-0857-0336, 9E-1B45-0857-0347, 9E-1B40-0867-0466, 9E-1B20-0969-0213, 9E-1B20-0969-0213-1, 9E-1B25-0984-0445, 9E-2B20-0971-0112, 9E-1B40-1676-0494
4.2 : Cylindrical roller slewing rings :
9E-1Z10-0152-0307, 9E-1Z10-0152-0524, 9E-1Z14-0305-3-1, PSL912-25-1, 9E-1Z20-0498-0227, 9E-1Z30-0668-0331, 9E-1Z30-0668-0331-1, 9E-1Z40-0855-45, 9E-1Z1Z30-0823-0277, PSL912-37, PSL912-23-1, 9E-1Z30-0980-0224, 9E-1Z30-0980-0276, 9E-1Z30-0980-16-1, 9E-1Z30-0980-16-4, 9E-1Z30-0980-16-4P4, 9E-1Z30-0980-1P5, 9E-1Z30-0980-16-18, 9E-1Z30-0980-16-7, 9E-1Z30-0980-16-1P4, 9E-1Z30-0980-0458, 9E-1Z30-1035-21, 9E-1Z30-1035-21-1, 9E-1Z30-1420-22, PSL912-36, 9E-1Z36-2345-0349

5. Cross roller slewing rings :
9I-1Z15-0415-0189, 9I-1Z16-0145-0196, 9I-1Z16-0415-0510, 9I-1Z30-0790-0475, 9I-1Z30-1035-0174, 9I-1Z30-1090-0103, 9I-1Z30-1120-0356, 9I-1Z25-1075-0300, 9I-1Z40-1175-30, 9I-1Z30-1305-0406, 9I-1Z25-1315-0374, 9I-1Z40-1432-29, 9I-1Z40-1385-0301, 9I-1Z30-1437-52, 9I-1Z40-1508-0192, 9I-1Z40-1532-0194

Special slewing rings
Ball slewing rings :
9I-1B25-0310-0178, 9I-1B25-0310-0178-1, 9I-1B25-0410-0240, 9I-1B25-0410-0240-1, 9I-1B25-0410-0497, 9I-1B33-0450-0306, 9I-1B33-0450-0306-1, 9I- 1B20-0455-0133, 9I-1B25-0547-0156, 9I-1B25-0570-0221, 9I-1B36-0715-0254, 9I-1B25-0720-0190, 9I-1B20-0741-0279, 9I-1B30-0990-0169, 9I-1B25-1014-0250, 9I-1B30-1050-0375, 9I-1B32-1087-0413, 9I-1B30-1094-0314, 9I-1B40-1000-0339, 9I-1B22-1086-0459, 9I-1B32-1157-0382, 9I-1B40-1155-0495, 9I-1B40-1250-0358, 9I-1B45-1240-0506, 9I-1B45-1240-0454-1, 9I-1B45-1240-0454, 9I-1B30-1205-0251, 9I-1B40-1252-0364, 9I-1B32-1243-0360, 9I-1B40-1350-0483, 9I-1B35-1344-0368, 9I-1B50-1470-0203, 9I-1B40-1420-0365
Cylindrial roller slewing rings :
9I-1Z25-1075-0330, 9I-1Z30-1198-0120, 9I-1Z40-1432-29-3, PSL912-29, PSL912-52

what is the slewing bearing

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FEATURES OF SLEWING RING BEARINGS
When you’re looking for a bearing option that can handle large loads and be very flexible with product design, slewing ring bearings is the best choice for you. Our slewing ring bearings have a very high load carrying capability. In fact, they are able to accept combined loads, including axial, radial, and tilting movement.

When it comes to flexibility, slewing ring bearings give engineers options to choose from. These choices can make slewing ring bearings highly customizable. Here are some product specifications of slewing ring bearings:

1.Size and location of bolt hole patterns can vary

2.Can be provided with an internal or external gear

3.Ball or crossed roller bearing design

4. Single or two row ball bearing design available

5. Lubrication holes are available

6. Preloading options are available as well as variations in clearance

If those options aren’t enough for you, our engineers can work with you for  further customization.

APPLICATIONS FOR SLEWING RING BEARINGS

1. Wind Power

2.Off-highway equipment

3. Packaging machinery

4. Cranes

5.Drilling and mining

6. Satellite equipment

The kaydon slewing bearing replacement we can customized

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The following series  models we can produced

nner and outer with flange slewing bearing：RK6-16P1Z，RK6-22P1Z，RK6-25P1Z，RK6-29P1Z，RK6-33P1Z，RK6-37P1Z，RK6-43P1Z

Inner tooth outer flange turntable bearing：RK6-16N1Z，RK6-22N1Z，RK6-25N1Z，RK6-29N1Z，RK6-33N1Z,RK6-37N1Z，RK6-43N1Z

Outer tooth inner flange slewing bearing ：RK6-16E1Z，RK6-22E1Z，RK6-25E1Z，RK6-29E1Z，RK6-33E1Z，RK6-37E1Z，RK6-43E1Z

no tooth no flange swing bearing：HS6-16P1Z ，HS6-21P1Z ， HS6-25P1Z ，HS6-29P1Z，HS6-33P1Z ，HS6-37P1Z ，HS6- 43P1Z

inner tooth slewing bearing ring without flange：HS6-16N1Z ，HS6-21N1Z ，HS6-25N1Z ，HS6-29N1Z ，HS6-33N1Z，HS6-37N1Z ，HS6- 43N1Z

outer tooth slewing ring without flange：HS6-16E1Z ,HS6-21E1Z ，HS6-25E1Z ，HS6-29E1Z ，HS6-33E1Z ，HS6-37E1Z ，HS6- 43E1Z

No tooth ：HT10-30P1Z，HT10-36P1Z ，HT10-42P1Z ，HT10-48P1Z ，HT10-54P1Z ，HT10- 60P1Z

Inner tooth ：HT10-30N1Z ，HT10-36N1Z，HT10-42N1Z ，HT10-48N1Z ，HT10-54N1Z ，HT10- 60N1Z

Outer tooth：HT10-30E1Z ，HT10-36E1Z，HT10-42E1Z，HT10-48E1Z ，HT10-54E1Z ，HT10- 60E1Z

By the way we can customized the slewing bearing depend on your request or drawngs , we have the professional technical team.

Slewing bearing for public works machine excavator

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Slewing bearings are widely applied in machines for public works. Usually the slewing rings for public works need to have high rigidity, undertake heavy loads, provide stable rotation, and resistant to impact load. Easy to disassemble or install is also an important factor.

Slewing bearing for excavators
(crawler excavators, wheel excavators, light duty excavators, etc.) Big size slewing bearing with external gear teeth or internal gear teeth are often used on the base of the excavator, which connecting the cabin and the base. Small size slewing bearings are often used in the swiveling boom of the excavators.
We can provide many brand of excavator slewing bearing , like Caterpillar, Komatsu ,Dawoo,Hitachi and so on
Caterpillar Excavator 320B, 320L, 215B, 225B, 980C, 3408B, 3306, 3406, 320, 245B models, for Komatsu Excavator PC60, PC100-5, PC120, PC200, PC220, PC300, PC400 models, Volvo EC210B, EC210, 240, 240 models, Hitachi EX60-2, EX60 EX60-1-5, EX120 EX100-1-5, EX200-1, 2, EX200 EX200 – – 3, EX300 EX200-5-3, 200, ZAXL350 models, etc.

HGB Slewing Drive Simple Introduction

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The slewing drive is a full-circle slewing reduction transmission mechanism that integrates a driving power source. It uses a slewing bearing as a transmission follower and a mechanism attachment. By attaching a driving member and a drive source to one of the inner and outer rings of the slewing bearing And the cover, and the other ring is used as both the driving follower and the connection base of the driven working part. This makes use of the characteristics of the slewing bearing itself as a full-circle slewing connector to efficiently configure the driving power source and the main transmission. Parts, making it a universal reduction transmission mechanism that integrates slewing, deceleration and driving functions, yet has a simple structure and is easy to manufacture and maintain.

According to the type of variable speed transmission of slewing drive, it can be divided into toothed slewing drive and worm gear slewing drive, inheriting the characteristics of gear drive and worm gear worm drive. These two types of slewing drive can be adapted to medium and high-speed applications In terms of load-carrying capacity, the worm gear and worm gear perform better than the tooth type. When the envelope worm drive is used, its load-carrying capacity, anti-deformation ability, and transmission rigidity are further improved. However, the worm gear worm rotary drive is more efficient in terms of efficiency. Inferior to toothed slewing drive.

According to the openness of the slewing drive transmission, the slewing drive can be divided into open and closed. Generally, the open structure is mostly used in applications where the environment is too harsh and the maintenance and repair cycle is short. Inspection, maintenance, and service are also easier to replace. Where the environmental conditions do not change much and the environment pollution level is below moderate, the closed structure can provide a long maintenance life cycle.

Insufficient High End Market for Slewing Bearings

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China’s slewing bearing market demand will be saturated. In view of the fact that China’s slewing bearing production tends to be saturated at present, it has few high-tech contents and the quality is not too hard. Looking at the market of excavators with high requirements for slewing bearing tooth quenching and raceway quenching, domestic excavators are used in projects. All imported equipment, Komatsu in Japan, Hyundai in Korea, and Caterpillar in the United States, although the price is expensive, the construction unit still selected it. The main reasons for purchasing capital are high quality, key components with high reliability, long service life, and easy damage. The anchor cannot be thrown at critical times, the construction period cannot be delayed, credibility cannot be affected, and some engineering disputes can be avoided.

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There are many factors restricting the development of China’s excavators, but the quality of mechanical parts, such as slewing bearings and hydraulic components, is not hard, which is an important link. From the comparison with foreign slewing bearings, the materials and heat treatment technology and tooth hardening technology of domestic slewing bearings are far behind. This requires the unremitting efforts of the majority of engineering and technical personnel to study hard and strive to catch up with the world’s advanced technology as soon as possible for slewing bearings. Go abroad and lay the foundation for the world.

Application of Slewing Drive

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The slewing drive is a new type of slewing product, usually called slewing bearing. It is usually composed of the worm, slewing bearing, housing, motor, and other components. Because the core component adopts slewing bearing, it can bear axial force, radial force, and overturning moment at the same time.

Application areas of the rotary drive

Compared with the traditional rotary products, the rotary drive has the advantages of simple installation, easy maintenance, and greater installation space-saving. This product can be widely used in construction machinery and new energy fields such as solar tracker systems, heavy-duty flatbed trucks, container cranes, truck-mounted cranes, aerial work vehicles, wind power generation and so on.

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Advantages of Luoyang Hengguan Slewing Drive

1.Slewing drive: open type (S series), with housing type (SE series), double worm (S / SE-2 series), vertical type (VE series) and dual-axis type (SDE series), and can be customized according to customers’ technical requirements design products of any specification and structure. Products are widely used in solar power generation, construction machinery, construction machinery, metallurgical mining machinery, ship and port machinery, and other industries.

2.People-oriented, scientific management, honesty and trustworthiness, pioneering management principles, advanced production equipment, sophisticated processing technology, and perfect testing methods will help the company build a well-known brand of customer satisfaction and reassurance.

3.Technology: Constant innovation keeps the design performance of Hengguan rotary drive products in line with international standards.

4.Manufacturing: Each process adopts advanced CNC processing technology and equipment and 100% rigorous testing before leaving the factory, which makes Hengguan rotary drive products of excellent quality.

5.Management: The entire manufacturing process adopts modern scientific management methods to make each step of the production process traceable.

6.Service: Carefully designed and precision manufactured to meet customer requirements, providing high-quality rotary drive products that meet customer requirements, so that our dedicated service runs through.

The Rapid Development of the Photovoltaic Tracking Market

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Not long ago, a report by IHS Markit pointed out that the global single-axis solar photovoltaic tracker shipments increased by more than 40% in 2018, and the total volume exceeded 20 Gigawatts. The global photovoltaic tracker market will benefit from new technologies and Market, maintaining the momentum of rapid growth.

In recent years, the photovoltaic tracker market has been increasing year by year. In emerging markets, especially in the Middle East and North Africa, the financial community and end-users have embraced the tracking system. Based on the expansion of public utilities and market experience, the financial industry and power station owners are more interested in tracking. High long-term stability and high returns. With the widespread application of high-efficiency components and double-sided technology in these years, the cost of electricity for photovoltaic tracking systems will continue to decrease. The stability and reliability of the rotating reducer, the core component of the photovoltaic tracking system, plays an important role in ensuring the superiority of the tracking system.

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Luoyang Hengguan is a professional solar tracking system rotary reducer manufacturer, which has witnessed the development of global photovoltaic tracking system. In 2019, the company maintains a steady growth in order volume, and the overseas market is growing at a rapid pace. The domestic owners’ recognition of the tracking system will further increase. The superiority of the photovoltaic tracking system will be more obvious in the future. The proportion of the system has also increased year by year.

It is understood that the slewing drive is one of the core components of the photovoltaic tracking system. Luoyang Hengguan is a global manufacturer of slewing transmission components and has accumulated rich experience in global projects. The company always insists on leading the development trend of tracking reducers with technological innovation and maintains close cooperation with the world’s leading manufacturers of photovoltaic tracking systems. The development of the global photovoltaic tracking market is expected in the future. With the entry of new entrants, the competitive environment in this market will be intensified.

A Brief Introduction to Robot Bearings

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In recent years, with the continuous development and improvement of technology, robots have been widely used in industrial and manufacturing fields. As one of the key parts of robots, robot bearings have played a key role in the operation of robots.

First, common bearing requirements for robots

1. Can withstand the axial, radial, overturning and other integrated loads.

2. Small size and lightweight.

3. It must have the technical characteristics of high load, high slewing accuracy, high running stability, high positioning speed, and high repeat positioning accuracy.

4. It can meet the characteristics of long life, low friction torque, high reliability.

Because of the particularity and complexity of the robot’s working environment, bearings that meet the above requirements must be required to fit in the robot to ensure safe use.

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Second, the robot commonly used bearings

Due to technical requirements and environmental influences, the development of modern industrial robots has become lighter, which requires that the supporting bearings have a more lightweight structure. Bearings must meet the performance requirements of industrial robots on bearing capacity, accuracy, stiffness, and frictional torque within a limited installation space. It is difficult to meet this requirement with standard general-purpose bearings. At present, there are two major types of bearings commonly used on robots. One is a thin-walled bearing of the same cross-section, and the other is a cross cylindrical roller bearing.

1.Equal-section thin-wall bearings

Equal-section thin-walled bearings are different from ordinary bearings in that their cross-sections are mostly square in size and their dimensions are designed to be fixed. In the same series, the cross-sectional dimension is constant, and it does not increase with the increase of the inner diameter, so it is called a constant-section thin-wall bearing. Equal-section thin-wall ball bearings include thin-wall four-point contact ball bearings, thin-wall angular contact ball bearings, and thin-wall deep groove ball bearings. They are mostly used in the waist, elbow, and wrist parts of industrial robots. In the case of the same internal diameter, thin-walled ball bearings with more sections have more steel balls than standard rolling bearings, so the internal force distribution of the bearing is improved, the elastic deformation at the contact between the steel ball and the channel is reduced, and the bearing’s Carrying capacity.

2. cross cylindrical roller bearings

The internal rollers of the cross cylindrical roller bearings are arranged at 90 ° perpendicular to each other. A single bearing can simultaneously bear the combined effects of radial force, axial force and overturning moment. A cage is installed or isolated between the rollers The block can prevent the inclination of the rollers or the mutual grinding between the rollers, and effectively prevent the increase of the friction torque. In addition, the rollers are arranged in a vertically crossed arrangement to avoid the locking of the rollers. At the same time, because the inner and outer rings of the bearing are divided, the gap can be adjusted, and even if pressure is applied, high rotation accuracy can be obtained. Crossed roller bearings are widely used in industrial robots for waist rotation, articulated robot shoulders, arms, wrists and other rotating parts due to their light composite structure, high turning accuracy, good rigidity, and stable friction torque.

Robot bearings must not only ensure sufficient bearing capacity but also require precise positioning and flexible operation. Therefore, bearing design analysis must consider a number of indicators for optimal design. In addition to the above two kinds of bearings, there are harmonic reducer bearings, linear bearings, articulated bearings, etc. in the robot, but mainly used are thin-walled bearings and thin-walled cross roller bearings of equal cross-section.

Brief Introduction of Wind Turbine Slewing Bearing

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In recent years, with the rapid development of the economy and population expansion, the demand for energy has also increased. Directly leading to energy reduction, environmental pollution problems have intensified. The country is vigorously developing clean energy. Wind power generation is a mature and promising power generation method in new energy power generation technology. Its safety and cleanliness have been rapidly developed at home and abroad in recent years. The slewing bearing of the wind turbine is an important part of the mechanical equipment, which ensures the normal operation of the wind power generator.

First, the definition

Wind turbine bearing can also be called wind power bearing. It is a kind of special bearing. It has a harsh environment, high maintenance cost, and high life. Wind turbine bearings mainly include yaw bearing, pitch bearing, spindle bearing, and shifting box bearings, generator bearings.

Second, wind power bearing structure

The structural forms of bearings for wind turbines mainly include four-point contact ball bearings, crossed roller slewing bearings, cylindrical roller bearings, spherical roller bearings, and deep groove ball bearings. The yaw bearing is installed at the connection between the tower and the cockpit, and the pitch bearing is installed at the joint of the root of each blade and the hub.

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Third, technical requirements

1. material standards

The standard stipulates that the material of the yaw and pitch bearing ring is 42CrMo. The heat treatment is treated by integral quenching and tempering. The hardness after quenching and tempering is 229HB-269HB, the surface of the raceway is quenched, and the quenching hardness is 55HRC-62HRC. Due to the complicated force of the yaw and pitch bearings of the wind turbine and the relatively large impact and vibration of the bearing, the bearing is required to withstand both impact and large loads. The life expectancy of the wind turbine’s main engine is 20 years, and the cost of bearing installation is relatively large. Therefore, the life of yaw and pitch bearing is required to reach 20 years.

2. low-temperature impact

Low temperature impact energy requirements for yaw and pitch slewing bearing rings: -20°CAkv is not less than 27J, and the Akv value in the cold state can be determined by the user. Wind turbines may work in extremely cold areas, with ambient temperatures as low as -40 °C, bearings operating at around -20 °C, and bearings must withstand large shock loads at low temperatures.

3.bearing clearance

Yaw and pitch bearings have special requirements in terms of play. Compared with the yaw bearing, the impact load of the pitch bearing is relatively large, and the vibration of the wind blows onto the blade is also large, so the clearance of the pitch bearing is required to be zero clearance or a slight negative clearance value, so that in the case of vibration lower the fretting wear of the bearing. The yaw bearing requires a small clearance value.

4.anti-corrosion treatment

Wind turbine equipment works in the field, and part of the yaw and pitch bearings are exposed to the outside and will be polluted by the atmosphere. The high humidity environment will also corrode the bearing base. Therefore, the yaw and pitch bearings exposed outside are eroded. The surface is required to be treated with anti-corrosion treatment, usually galvanized. Paint protection treatment is applied outside the galvanized layer as needed.

The slewing bearing of the wind turbine is an extra large bearing, which is mainly used for pitch and yaw systems. The load is complicated and the disassembly and maintenance is very difficult. Therefore, the design and manufacturing requirements of the wind power slewing bearing are strict. Due to its large size and difficult installation and disassembly, the maintenance is very difficult, and the failure of the slewing bearing will directly affect the working performance of the wind turbine and even cause downtime. Therefore, the wind power slewing bearing is required to have high reliability and long service life, and at least to reach the service life of the wind power generator, that is 20 years.