Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing

Product Details
Customization: Available
Standard or Nonstandard: Standard
Feature: Corrosion-Resistant
Manufacturer/Factory & Trading Company
Gold Member Since 2013

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Number of Employees
52
Year of Establishment
1999-06-15
  • Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
  • Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
  • Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
  • Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
  • Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
  • Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
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Basic Info.

Model NO.
Internal gear Cross Roller Slewing Bearing
Sealing Gland
Sealed On Both Sides
Rolling-Element Number
Single-Row
Roller Type
Cross Roller
Material
Bearing Steel
Type
Internal Gear
Transport Package
Wooden Case
Trademark
LDB
Origin
Luoyang City, Henan Provice, China
HS Code
8482109000
Production Capacity
2000sets/Month

Product Description

Internal Gear Cross Roller Slewing bearing model parameters

Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing

 

TYPE Dimensions Installation size Tooth parameters Load Weight
De de di Di He Hi Ht Fe Ne he Fi Ni hi m Z x·m Dp    
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [-]   [mm] [-]   [mm] [-] - [mm] [kN] [kg]
1X14-I-0414 484 415 411 325 44.5 44.5 56 460 24 14 375 24 M12 5 67 - 335 26.2 31
1X14-I-0544 614 545 541 444 44.5 44.5 56 590 32 14 505 32 M12 6 76 - 456 35 43
1X14-I-0644 714 645 641 546 44.5 44.5 56 690 36 14 605 36 M12 6 93 - 558 35 50
1X14-I-0744 814 745 741 648 44.5 44.5 56 790 40 14 705 40 M12 6 110 - 660 35 58
1X14-I-0844 914 845 841 736 44.5 44.5 56 890 40 14 805 40 M12 8 94 - 752 46.7 69
1X14-I-0944 1014 945 941 840 44.5 44.5 56 990 44 14 905 44 M12 8 107 - 856 46.7 76
1X14-I-1094 1164 1095 1091 984 44.5 44.5 56 1140 48 14 1055 48 M12 8 125 - 1000 46.7 91
1X16-I-1204 1289 1206 1202 1072 58 58 68 1257 45 16 1151 45 16 10 108 - 1080 96.67 148
1X16-I-1314 1399 1316 1312 1182 58 58 68 1367 50 16 1261 50 16 10 119 - 1190 96.67 161
1X16-I-1424 1509 1426 1422 1292 58 58 68 1477 54 16 1371 54 16 10 130 - 1300 96.67 175
1X16-I-1534 1619 1536 1532 1402 58 58 68 1587 60 16 1481 60 16 10 141 - 1410 96.67 189
1X16-I-1644 1752 1646 1642 1495 58 58 68 1708 54 22 1580 54 22 10 150 - 1500 96.67 239
1X16-I-1754 1862 1756 1752 1605 58 58 68 1818 60 22 1690 60 22 10 161 - 1610 96.67 256
1X20-I-1904 2012 1906 1902 1729 58 58 68 1968 64 22 1840 64 22 14 124 - 1736 135.33 304
1X16-I-0380 451 381 379 291 45 45 55 425 24 13.5 335 24 13.5 5 60 - 300 - 28
1X20-I-0489 562 490.5 487.5 385 50 50 60 538 30 14 440 30 14 6 66 - 396 - 44
1X20-I-0573 665 574.5 571.5 457 50 50 60 630 28 17.5 518 28 17.5 6 77 -3 468 - 62
1X25-I-0673 771 674.5 671.5 541 60 60 70 736 32 17.5 610 32 17.5 6 91 -3 552 - 96
1X25-I-0714 825 715.5 712.5 567.5 62 78 90 785 26 18 640 20 18 7 82 - 581 - 135
1X25-I-0770 871 771.5 768.5 634 60 60 70 833 36 17.5 707 36 17.5 8 80 -4 648 - 112
1X25-I-0849 960 850.5 847.5 706 65 65 70 914 30 22 784 30 22 8 89 -4 720 - 14.4
1X25-I-0946 1066 947.5 944.5 785 65 75 85 1015 36 22 880 36 22 10 79 -6.52 803.04 - 190
1X25-I-1050 1170 1052 1048 882 80 88 98 1125 40 22 975 40 22 10 89 - 900 - 258
1X30-I-1140 1251 1143 1138 979 75 75 91 1212 40 22 1068 40 22 10 99 -3.2 996.4 - 239
1X30-I-1304 1431 1306 1302 1132 82 85 97 1380 48 22 1228 48 22 10 115 - 1150 - 323
1X40-I-1385 1530 1387 1383 1178 107 107 130 1480 36 26 1290 36 26 12 100 - 1200 - 541
1X45-I-1606 1770 1608 1604 1375 125 125 150 1710 48 30 1500 48 30 14 100 - 1400 - 802
1X45-I-1830 2002 1832 1828 1595 125 125 150 1940 54 30 1720 54 30 14 115 -4.9 1619.8 - 951
1X50-I-1997 2190 1999 1995 1731 127 132 144 2130 72 30 1880 72 30 16 109 -8 1760 - 1199
1X50-I-2400 2590 2402 2398 2110 135 145 160 2520 80 30 2280 80 30 18 118 -9 2142 - 1626
1X50-I-2810 3020 2812 2808 2495 140 148 158 2950 72 36 2670 72 36 20 126 -6 2532 - 2154


1. Our slewing bearings are crafted with excellence, adhering to the most rigorous standards, ensuring unmatched quality in every piece.Quality is the cornerstone of Luoyang Longda Bearing. We recognize that even the smallest flaw could result in substantial repercussions. Consequently, we begin with a meticulous selection of raw materials, launching an unwavering quest for excellence. Every batch of raw materials is subject to rigorous inspections to confirm their adherence to our stringent quality standards.Throughout the production of slewing bearings, our company has implemented a cutting-edge quality management system. This approach secures comprehensive inspection records and precise raw material analyses for each stage of production. We are proud to have achieved certification under the ISO 9001 quality management system in Germany, underscoring our commitment to quality.


Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
2. Our attentive customer service guarantees a seamless after-sales experience, leaving you worry-free.
"Elaborate manufacturing and serving the global" is not just a slogan, but a guiding principle deeply ingrained in every Longda employee. Our professional and dynamic team stands ready to provide comprehensive technical support and solutions. Whether it's product selection, installation, commissioning, or after-sales maintenance of slewing drive products, we ensure timely assistance for any customer needs.
Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
Our slewing bearings are versatile and can be applied across various sectors, including industrial automation, port cranes, mining and medical equipment, cement machinery, wind power, metallurgical machinery, the aviation industry, shield machines, construction machinery, stacker-reclaimer equipment, and radar systems.
Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing
Internal Gear Crossed Roller Bearing Slewing Ring Slewing Bearing

Luoyang Longda Bearing Slewing Bearing: The Reliable Foundation for Industrial Operation

On the vast stage of the industrial field, behind every precisely operating device, there is an indispensable and reliable support from key components. Luoyang Longda Bearing Slewing Bearing, as a leader in the industry, are ensuring the stable operation of numerous mechanical devices with their excellent quality and powerful performance.

I. Enterprise Development History and Background

Luoyang, a city with a profound industrial heritage, is known as the "Cradle of China's Bearing Industry." On this land that has nurtured industrial miracles, Luoyang Longda Bearing came into being. Tracing back its development history, since its establishment, Longda Bearing has been on an arduous entrepreneurial journey with the dream of revitalizing the national bearing industry.
In the initial stage of the company's establishment, it faced many challenges such as backward technology, outdated equipment, and a shortage of talents. However, the people of Longda did not flinch at all. With their dedication and love for the bearing business, they traveled around, learned advanced technologies, introduced key equipment, and recruited industry talents. After years of unremitting efforts, Longda Bearing has gradually emerged in the market, developing from an unknown small factory to an enterprise with significant influence in the field of bearing slewing bearings today.
During the development process, Longda has always kept pace with the times, actively responded to national policies, and continuously adjusted its corporate strategy. From simple production and manufacturing at the beginning to the current full - industry - chain layout integrating R & D, production, sales, and service, Longda Bearing has achieved a qualitative leap. Every transformation and upgrading embodies the wisdom and hard work of the people of Longda and also witnesses the tenacious struggle and growth of the enterprise in the market competition.

II. Exquisite Manufacturing Process

(I) Strict Screening of Raw Materials

Raw materials are the foundation of product quality, and Luoyang Longda Bearing Slewing Bearing are well aware of this. In the raw material procurement process, the company has established a set of strict screening standards and a supplier evaluation system. It only cooperates with top - tier raw material suppliers in the industry to ensure that each batch of steel meets high - quality requirements.
For key indicators such as the chemical composition and physical properties of steel, Longda conducts strict tests. For example, when testing the carbon content of steel, the error must be controlled within a very small range because even a slight fluctuation in carbon content can affect the hardness and toughness of the steel. At the same time, the purity of the steel is required to be extremely high, and the content of impurities such as sulfur and phosphorus is strictly controlled to ensure a uniform internal structure of the steel and avoid defects such as cracks.

(II) Precision Machining Process

In the processing link, Luoyang Longda Bearing Slewing Bearing adopts a series of advanced precision machining technologies. The company has introduced internationally leading CNC machining equipment, which features high precision and high stability and can achieve the processing of complex shapes.
Taking the raceway processing of slewing bearings as an example, through high - precision CNC grinding machines, the surface roughness of the raceway can be controlled at an extremely low level, reaching a mirror - like effect. Such surface quality can effectively reduce the friction between the rolling elements and the raceway and improve the rotation accuracy and efficiency of the slewing bearing. At the same time, during the processing process, advanced on - line detection technology is used to monitor the processing size and accuracy in real - time. Once a deviation is found, adjustments are immediately made to ensure that each product meets strict tolerance requirements.

(III) Strict Inspection Process

Quality inspection is of utmost importance in the production process of Longda Bearing Slewing Bearing. The company has established a perfect inspection system, strictly checking every link from the incoming inspection of raw materials, to the semi - finished product inspection during the production process, and finally to the final inspection of finished products.
In the finished - product inspection link, a variety of advanced inspection equipment and methods are used. For example, a high - precision three - coordinate measuring machine is used to accurately measure the various dimensions of the slewing bearing to ensure that the dimensional accuracy meets the design requirements. At the same time, the vibration characteristics of the product are detected through vibration detection equipment, and the vibration value must be controlled within the specified range to ensure the stability of the product during operation. In addition, multiple inspection items such as hardness testing and flaw detection are also carried out to ensure that the product has no quality hidden dangers.

III. Excellent Product Performance

(I) High Precision

Luoyang Longda Bearing Slewing Bearing are renowned for their excellent high precision. In the design process, the stress conditions under various working conditions are fully considered, and through optimizing the structural design, the product can maintain extremely high rotation accuracy during operation.
For example, in some medical equipment and optical instruments with extremely high precision requirements, Longda's slewing bearings can control the rotation error within the micron level. This benefits from its precision machining process and strict inspection process, ensuring that the dimensional accuracy and geometric tolerance of each component meet high standards. High - precision slewing bearings enable these devices to achieve accurate positioning and motion control, providing reliable support for medical diagnosis and scientific research.

(II) High Load - Carrying Capacity

In the heavy - machinery field, such as large - scale cranes and port handling equipment, the load - carrying capacity requirements for slewing bearings are extremely high. Luoyang Longda Bearing Slewing Bearing have a strong load - carrying capacity through the use of special materials and optimized structural design.
The internal rolling elements and raceways have undergone special heat - treatment processes, and their hardness and strength have been greatly improved. At the same time, the number and size of the rolling elements and the curvature radius of the raceway are reasonably designed, enabling the slewing bearing to evenly bear axial force, radial force, and overturning moment. In practical applications, Longda's slewing bearings can easily handle loads of several tons or even dozens of tons, ensuring the stable operation of heavy machinery under various working conditions.

(III) Long Service Life

The long service life of Luoyang Longda Bearing Slewing Bearing is a major advantage of its products. By strictly controlling the quality of raw materials, optimizing the processing technology, and adopting advanced lubrication technology, Longda has effectively extended the service life of slewing bearings.
In terms of lubrication, the company has developed a special lubricating grease, which has good adhesion, anti - wear, and anti - oxidation properties. It can form a uniform lubricating film between the rolling elements and the raceway of the slewing bearing, reducing friction and wear. At the same time, the lubrication channels and sealing structures are reasonably designed to ensure that the lubricating grease can be evenly distributed in each friction part and prevent the intrusion of external impurities and moisture. Under normal use and maintenance conditions, the service life of Longda's slewing bearings is more than 30% longer than that of similar products, reducing the equipment maintenance cost and replacement cycle for customers.

IV. Technological Innovation and R & D Strength

(I) R & D Team and Investment

Luoyang Longda Bearing Slewing Bearing attach great importance to technological innovation and R & D work and has formed an R & D team composed of senior industry experts and high - quality technical talents. Among the team members, there are not only engineers with many years of practical experience in the bearing field but also master's and doctoral students from well - known universities.
To enhance R & D strength, the company continuously increases R & D investment, spending more than 8% of its operating income on technological R & D and innovation every year. It has purchased advanced R & D equipment and experimental instruments and established a complete R & D laboratory and test base. These hardware facilities provide good R & D conditions for the R & D team, enabling them to carry out research on various cutting - edge technologies and the development of new products.

(II) Innovation Achievements and Applications

In terms of technological innovation, Luoyang Longda has achieved fruitful results. The company has successively developed a number of core technologies with independent intellectual property rights, such as new slewing bearing structure designs, material optimization technologies for special working conditions, intelligent lubrication and monitoring systems, etc.
These innovation achievements have achieved remarkable results in practical applications. For example, the intelligent lubrication and monitoring system developed by the company can real - time monitor parameters such as lubrication status, temperature, and vibration by installing sensors inside the slewing bearing. Once an abnormal situation is detected, the system will immediately issue an alarm and automatically adjust the lubrication strategy to ensure the normal operation of the slewing bearing. This technology has been widely applied in wind power generation equipment, effectively improving the operation reliability and maintenance efficiency of wind turbines and reducing the failure rate.

(III) Industry - University - Research Cooperation

In order to further enhance technological innovation capabilities, Luoyang Longda actively carries out industry - university - research cooperation. It has established long - term and stable cooperative relationships with many well - known domestic universities and scientific research institutions to jointly carry out technological R & D and talent cultivation.
Through industry - university - research cooperation, the company can keep abreast of the latest technological trends and research results in the industry and combine the scientific research advantages of universities and scientific research institutions with the production practice of the enterprise. For example, a research project on high - performance bearing materials carried out in cooperation with a certain university has successfully developed a new type of high - strength and corrosion - resistant bearing material, which has been applied to some high - end products of Longda, significantly improving the performance and market competitiveness of the products.

V. Wide Application Fields

(I) Construction Machinery Field

In the construction machinery field, Luoyang Longda Bearing Slewing Bearing are widely used in equipment such as excavators, loaders, and cranes. These devices need to perform frequent rotation, lifting, and other actions during construction, and have extremely high performance requirements for slewing bearings.
Longda's slewing bearings, with their high precision, high load - carrying capacity, and long service life, can meet the use requirements of construction machinery under various harsh working conditions. For example, in large - scale excavators, the slewing bearing needs to bear huge excavation force and rotation torque, and Longda's products can stably transmit these loads, ensuring the efficient operation of the excavator. At the same time, its good sealing performance and anti - wear performance enable the slewing bearing to maintain a good working state even in construction sites with dust and mud splashing.

(II) Wind Power Generation Field

With the increasing global demand for clean energy, the wind power generation industry has developed rapidly. Luoyang Longda Bearing Slewing Bearing play an important role in wind power generation equipment, mainly applied to the yaw system and pitch system of wind turbines.
In the yaw system, the slewing bearing needs to achieve the smooth rotation of the wind turbine nacelle to track the change of wind direction. Longda's yaw slewing bearings adopt a special gear ring design and high - precision processing technology, which can ensure the meshing accuracy and transmission efficiency of the gear ring, enabling the wind turbine to adjust its direction quickly and accurately. In the pitch system, the slewing bearing is used to control the angle of the blades to achieve the optimal power generation efficiency of the wind turbine. Longda's pitch slewing bearings have high - precision positioning performance and good dynamic response characteristics, which can meet the pitch requirements of wind turbines under different wind speeds.

(III) Port Machinery Field

Ports are important hubs for cargo transportation, and the efficient operation of port machinery is crucial for ensuring the smooth flow of logistics. Luoyang Longda Bearing Slewing Bearing are widely used in equipment such as port cranes and gantry cranes.
Port machinery usually operates under heavy - load and frequent start - stop working conditions, and has extremely high requirements for the load - carrying capacity and reliability of slewing bearings. Longda's port - machinery - used slewing bearings can withstand huge loads and frequent impacts through optimized structural design and the use of high - strength materials. At the same time, its advanced sealing technology and protective measures can effectively prevent the erosion of corrosive media such as seawater and salt spray, ensuring the long - term stable operation of the slewing bearing in the harsh port environment.

(IV) Other Fields

In addition to the above - mentioned fields, Luoyang Longda Bearing Slewing Bearing are also widely used in many fields such as mining machinery, agricultural machinery, medical equipment, and aerospace. In mining machinery, they are used in equipment such as crushers and mills; in agricultural machinery, they are applied to combine harvesters, tractors, etc.; in medical equipment, they are used in CT machines, nuclear magnetic resonance equipment, etc.; and in the aerospace field, Longda's slewing bearing technology is also applied in related equipment.

VI. Market Competitive Advantages

(I) Quality Advantage

Luoyang Longda Bearing Slewing Bearing always regard product quality as the lifeline of the enterprise. Through a strict quality control system and exquisite manufacturing process, each product is ensured to meet high - quality standards. Its products are superior to similar products in terms of accuracy, load - carrying capacity, and service life, winning the high recognition and trust of customers.
In the market competition, the quality advantage is one of Longda's core competitiveness. Many customers, when choosing slewing bearing products, first consider the Longda brand because they believe that Longda's quality can provide reliable protection for their equipment.

(II) Technological Advantage

Continuous technological innovation and strong R & D strength are another major advantage of Luoyang Longda in the market competition. The company continuously invests in R & D resources, overcomes industry problems, and launches innovative products and technologies. These technological innovation achievements not only meet the diverse needs of customers but also gain the initiative for Longda in the market.
Compared with competitors, Longda can respond to market changes more quickly and launch products that adapt to new working conditions and new demands. For example, in the emerging offshore wind power generation field, Longda took the lead in developing slewing bearing products suitable for the harsh offshore environment, seizing market share.

(III) Service Advantage

While focusing on product quality and technological innovation, Luoyang Longda also attaches great importance to customer service. The company has established a perfect customer service system, providing customers with a full - range, one - stop service from pre - sales technical consultation, to in - sales product customization and installation guidance, and then to after - sales maintenance and technical support.
The professional service team responds to customer needs at any time and can promptly solve problems encountered by customers during the use process. Whether at home or abroad, as long as customers have needs, Longda's service personnel can arrive at the site within the shortest time. This high - quality service has won the praise of customers and also established a good brand image for Longda.

(IV) Cost Advantage

Although Luoyang Longda Bearing Slewing Bearing have invested a large amount of resources in product quality and technological innovation, through optimizing the production process, improving production efficiency, and reasonably controlling costs, the company has effectively controlled costs while ensuring product quality.
Compared with some foreign brands, Longda's products have a certain price advantage. At the same time, due to the long service life and low maintenance cost of its products, customers can save a large amount of costs during long - term use. This cost advantage makes Longda more attractive in the market competition, especially in the price - sensitive market segments.

VII. Customer Cases and Reputation

(I) Cooperation Cases with Well - Known Domestic Enterprises

[Specific Enterprise Name 1] is a large - scale construction machinery manufacturing enterprise in China. For a long time, it has been facing the problem of unstable slewing bearing quality, which has seriously affected the market competitiveness of its products. After extensive investigations and comparisons, the enterprise chose to cooperate with Luoyang Longda Bearing Slewing Bearing.
Longda customized a set of slewing bearing solutions for this enterprise according to the characteristics of its equipment and working conditions. After the product delivery, Longda's technical personnel also provided the enterprise with detailed installation guidance and training services. After a period of use, the enterprise feedback that Longda's slewing bearing products have stable performance, high precision, and long service life, effectively improving the reliability and production efficiency of its equipment. Since then, the two sides have established a long - term and stable cooperative relationship.

(II) International Market Expansion Cases

With the development of global economic integration, Luoyang Longda Bearing Slewing Bearing actively expands the international market. [Specific Country Name 1] is an industrially developed country with extremely high requirements for the quality and performance of slewing bearing products. Longda successfully entered the market of this country through participating in international exhibitions and cooperating with local distributors.
In the initial stage of entering the market of this country, Longda faced fierce competition from internationally renowned brands. However, with its excellent product quality and high - quality service, Longda gradually won the recognition of local customers. [Specific Enterprise Name 2] is a large - scale wind power generation equipment manufacturer in this country. After using Longda's slewing bearing products, it praised the performance and quality of the products. The enterprise said that Longda's products can be completely comparable to international first - tier brands, and are more advantageous in terms of price and service. Through cooperation with this enterprise, Longda's popularity and influence in the market of this country have been continuously enhanced, laying a solid foundation for further expanding the international market.

(III) Customer Word - of - Mouth and Evaluation

In the minds of many customers, Luoyang Longda Bearing Slewing Bearing are synonymous with quality and reliability. Many customers have highly praised Longda's products after using them.
"Longda's slewing bearings are of very reliable quality. Our company's crane has been in use for many years, and the slewing bearing is still operating well without any problems. Moreover, their service is also very considerate. They can solve problems promptly when they arise, giving us no worries." - [Name 1 of the person in charge of a certain construction machinery enterprise]
"In the wind power generation field, the requirements for the accuracy and reliability of slewing bearings are extremely high. Longda's products fully meet our requirements, and they are also very outstanding in technological innovation, providing us with many advanced solutions. We are very assured to cooperate with Longda." - [Name 1 of the technical person in charge of a certain wind power generation enterprise]
These customer word - of - mouth and evaluations are the best testimony to Luoyang Longda Bearing Slewing Bearing's adherence to quality - first and customer - first for many years.

VIII. Future Outlook

Looking ahead, Luoyang Longda Bearing Slewing Bearing will continue to adhere to the business philosophy of "Innovation, Quality, Service" and continuously enhance the core competitiveness of the enterprise.
In terms of technological innovation, the company will increase R & D investment, strengthen cooperation with universities and scientific research institutions, and carry
 

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