Case

 

In the global high-end equipment manufacturing sector, Luoyang Heng Guan Bearing Technology Co., Ltd., with its superior technical strength and international vision, has established in-depth collaborations with key markets along the “Belt and Road Initiative” and globally, providing high-precision core components for key industries such as energy, metallurgy, ports, and healthcare, setting a benchmark for cross-border cooperation.

 

1. Supporting Africa's Industrialization: Large Slewing Bearing Project for 10,000-Ten Thousand-Year Dryer in South Africa

 

 

 

In 2024, Luoyang Heng Guan Bearing Technology Co., Ltd. customized a 6-meter ultra-large slewing bearing for a South African mining group for use in 10,000-year industrial drying equipment. The product's ultra-high load capacity and corrosion resistance, despite extreme operating conditions, have become a landmark example of modernization in the African mining industry and demonstrate the supporting role of Chinese slewing bearing technology in the global resource industry chain.

2. Empowering the Upgrading of Asia's Steel Industry: High-End Embossing Roller Project in India

 

 

In 2025, Luoyang Heng Guan Bearing Technology Co., Ltd. entered into a strategic partnership with a leading Indian steel company to provide giant embossing roller assemblies for its intelligent production line. Leveraging integrated precision molding technology and a digital twin operation and maintenance system, the project helps the customer achieve a leap in plate processing accuracy. The project has been selected as a "China-India High-End Manufacturing Cooperation Demonstration Case."

 3. Leading the Intelligent Ports of Eurasia: European Ultra-Large Marine Equipment Collaboration

 

 

In 2025, Luoyang Heng Guan Bearing Technology Co., Ltd. reached a long-term strategic agreement with a European large-scale shipbuilding heavy industry group. The bulk supply of 4-meter port crane slewing bearings will become a core component of key hub equipment on Arctic shipping routes, laying the foundation for joint research and development of high-end European equipment.

4. Jointly Building the Belt and Road Ecosystem: Becoming a Core Slewing Bearing Supplier for Turkey's Construction Machinery Industry, Enabling Efficient Equipment Operation

 

 

In 2023, based on their high recognition of Luoyang Heng Guan Bearing Technology Co., Ltd.'s technical standards, several well-known Turkish construction machinery companies entered into strategic partnerships with Luoyang Heng Guan Bearing to provide them with high-performance, high-durability slewing bearing components. These components are widely used in heavy machinery such as excavators, cranes, and mining equipment, driving technological upgrades in the construction machinery industry in Turkey and surrounding regions.

5. Breaking International Barriers in Medical Equipment: Exporting High-End CT Systems to Mexico

 

 

Luoyang Heng Guan Bearing Technology Co., Ltd.'s independently developed medical-grade, high-precision slewing bearings are now successfully used in the next-generation CT equipment of a Mexican medical imaging giant, standing out from the international competition with their high precision and exceptionally quiet technology. This move marks a breakthrough for Chinese core components in the international medical equipment monopoly, providing a "Chinese solution" for global precision medicine.

6. Luoyang Heng Guan Bearing Customizes a Lightweight Slewing Bearing for a High-End Amusement Ride in the UK

 

 

In 2025, a well-known British amusement equipment manufacturer planned to develop a new generation of high-end rides. They required core slewing bearing components to meet three key criteria: lightweight, low noise, and long life, while maintaining high load capacity. This would enhance both equipment performance and the visitor experience. Facing these stringent technical requirements, Luoyang Heng Guan Bearing Technology Co., Ltd., leveraging its extensive experience in precision slewing bearings, successfully won the bid and completed customized R&D and delivery.

7. Luoyang Heng Guan Bearing Collaborates with a Leading German Logistics Technology Company to Develop Intelligent Intralogistics Solutions

 

 

In 2025, after rigorous screening by a leading German logistics technology company, Luoyang Heng Guan Bearing was ultimately recognized and signed a long-term strategic partnership agreement, providing transmission solutions for the company's fully automated intralogistics process, encompassing conveying, loading, palletizing, packaging, sorting, and baggage handling.

8. Luoyang Heng Guan Bearings Helps a German Wind Power Giant Build High-Reliability Wind Turbine Slewing Bearings

 

 

Amid the global energy transition, a leading German power company planned to upgrade its offshore wind farms and required high-precision, long-life wind turbine main shaft bearings to withstand the extreme climate (high salt spray and strong wind loads) of the North Sea. After a rigorous global supplier selection process, the company ultimately chose Luoyang Heng Guan Bearings (LYHGB) to provide customized bearing solutions for its high-power wind turbines of 5MW and above.

9. Luoyang Hengguan Bearing Technology Co., Ltd. successfully delivered a batch of ultra-long precision components, including shafts over seven meters long and high-precision gears, to a well-known Canadian industrial equipment manufacturer, marking further international recognition of China's high-end machinery component manufacturing capabilities.

 

 

The delivered shafts are over seven meters long, and the accompanying high-precision gears utilize advanced grinding technology to ensure world-leading transmission efficiency and stability. These products will be used in the Canadian customer's heavy machinery, meeting their core requirements for high load capacity, long life, and low noise.

This collaboration fully demonstrates our comprehensive strength in the field of large precision components. From material selection to heat treatment and precision machining, we rigorously control the entire process to ensure product performance exceeds customer expectations.

As a leading company in China's bearing and transmission component industry, Heng Guan Bearing has continuously invested in research and development in recent years, achieving breakthroughs in high-end markets such as wind power and mining machinery. This export to Canada not only solidifies its position in the global supply chain but also establishes another benchmark for "Made in China" high-end equipment.

 

 

10. Luoyang Hengguan Bearing: High-Precision Heavy-Duty Welding Positioner Slewing Bearing Application Case

 

 

A renowned German heavy-duty engineering machinery manufacturer urgently needed a high-performance slewing bearing for its new welding positioner to upgrade its automated welding production line. The key requirement was to achieve extremely high rotational positioning accuracy even under heavy loads.

Leveraging its extensive technical expertise and customization capabilities, Luoyang Hengguan Bearing provided a dedicated slewing bearing solution, with key parameters precisely matched to the equipment requirements:

Measuring 1300 × 998 × 100 mm, the compact structure offers excellent rigidity, enabling stable loads on workpieces exceeding 15 tons.

Axial play is strictly controlled within the 0.02–0.1 mm range. This micron-level precision effectively suppresses axial play during rotation, ensuring high-precision rotary positioning.

The 50Mn high-quality steel, tempered and surface-heat-treated, offers high strength and excellent wear resistance, capable of withstanding the shock and constant vibration common in welding operations. Since its commissioning, the slewing bearing has performed exceptionally well, with the positioner's rotary repeatability accuracy remaining stable within ±0.08°, fully meeting the demanding motion precision requirements of robotic welding systems. The first-pass pass rate for welded workpieces has significantly increased, effectively ensuring production line efficiency and process stability, and fully demonstrating the reliability and adaptability of Hengguan bearing products in high-precision, heavy-load applications.

11.Luoyang Hengguan Bearing: High-Precision Large Slewing Bearing Application Case for Ships

 

 

A large domestic shipbuilding company sought core bearing components for a heavy-load rotating crane system on a new offshore engineering vessel. They required a slewing bearing with ultra-high precision, excellent corrosion resistance, and long life to withstand the harsh operating conditions at sea. The crane would carry over 100 tons of cargo or equipment and achieve 360° precise rotation within the limited deck space. After multiple rounds of technical evaluation, they ultimately selected a large, high-precision slewing bearing with an outer diameter of 3800mm developed by Luoyang Hengguan Bearing.

Core Technical Features:

Material and Heat Treatment: The rings are made of 42CrMo high-strength alloy steel with a tempered hardness of HB260-300, ensuring substrate strength and toughness. The tooth surfaces undergo medium-frequency quenching, achieving a surface hardness of HRC55-60 and an effective hardened layer depth of ≥3.5mm, significantly improving wear and fatigue resistance. Precision and Clearance Control: The bearing achieves P5 precision, meeting the stringent requirements of high-precision machinery for rotational runout. Both axial and radial clearances are strictly controlled to 0.03-0.05mm. This extremely low clearance effectively suppresses rotational sway under ship swaying conditions, ensuring the crane remains stable and aligned in windy and rough seas.

Structural Design and Process: The compact structure, measuring 3800×3800×260mm, utilizes a three-row roller design to evenly load axial, radial, and overturning moments. The raceway curvature ratio is optimized to 1.04, maximizing contact area and increasing the static load rating by approximately 30%.

Integrated into a ship crane, this slewing bearing has demonstrated excellent performance in field tests at sea, demonstrating stable and reliable slewing positioning accuracy, fully meeting the operational requirements of offshore engineering vessels in complex sea conditions.

12. Luoyang Hengguan Bearing: Application Case Study of Ultra-High-Load Slewing Bearings for Shield Machines

 

 

A heavy engineering machinery group developed a core cutterhead drive system for a new rock-grade shield machine, requiring stable and reliable rotary tunneling in extremely harsh rock formations. Luoyang Hengguan Bearing provided a dedicated slewing bearing solution, whose superior performance perfectly met this challenge.

Core Technical Advantages:

Triple Protection Structure: Utilizing a unique design with three rows of cylindrical rollers and a copper cage, the bearings achieve an axial static load rating of 18,500 kN and a radial load rating of 12,000 kN. The optimized 45° contact angle effectively dissipates the enormous axial forces generated by the shield machine, while the copper cage ensures self-lubrication under heavy impact loads.

Deep Hardening: The raceway surface is hardened to a hardness of HRC 58-62, with an effective hardened layer depth of ≥8mm and a hardness deviation within 3 HRC. The base is tempered to HB 270-300, achieving both surface wear resistance and core toughness. Precision manufacturing guarantees: After fine turning, the roughness is ≤ Ra0.32, axial and radial clearances are simultaneously controlled to 0.03-0.10mm, and the end-face runout of an 1800mm outer diameter is ≤ 0.15mm, meeting the requirements of high-precision cutterhead installation and complex loads.

This product has been successfully applied to the cutterhead drive system of shield machines, demonstrating excellent load-bearing capacity and reliability under extreme operating conditions, providing key component support for ultra-large tunnel boring equipment.

13. Luoyang Hengguan Bearing: Customizing Highly Wear-Resistant Gearboxes for a Malaysian Palm Oil Producer.

 

 

1. Customer Pain Points

 

The original oil press transmission gears of a large palm oil processing plant in Malaysia had long suffered from severe pitting and tooth breakage caused by high torque impacts. The average service life was only 6-8 months. Frequent downtime severely impacted production efficiency and resulted in high maintenance costs.

2. Customized Solutions

Luoyang Hengguan Bearing specifically developed a "high-toughness carburized gear set specifically for oil presses":

Material: 20CrMnTiH high-grade carburized steel, subjected to CNC precision carburizing and quenching, achieving a tooth surface hardness of HRC 58–62, maintaining high toughness at the core and improving impact resistance by 50%.

The tooth profile utilizes crowning and tooth profile relief to effectively distribute stress and significantly reduce the risk of tooth breakage.

Gear accuracy reaches DIN 6, ensuring smoother transmission and lower noise.

Complete quality documentation and customs clearance support are provided to ensure smooth delivery to Port Klang. III. Application Results

After 18 months of continuous operation, the gears showed minimal wear, extending their projected lifespan to over 24 months, three times that of the original gears.

This saves the customer over 120 hours of downtime annually, reducing overall annual maintenance costs by approximately 40%.

The customer has designated Hengguan as a core supplier and is promoting its use across the group.

 

 

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14. Luoyang Hengguan Bearing: Ball Mill Ring Gear Application Case in South American Mining

 

 

 Project Background

A large copper mining company in South America was experiencing frequent production line downtime due to premature failure of its original ball mill ring gear. In the humid and highly corrosive mining environment, the original ring gear suffered tooth breakage and severe pitting after only 11 months of use, severely impacting mineral processing capacity.

 Customized Solution

Luoyang Hengguan Bearing developed a specialized ball mill ring gear specifically for the unique operating conditions of South American mining areas:

Material Upgrade: 42CrMo+Ni composite alloy steel with a tensile strength of ≥980 MPa

Tooth Surface Strengthening: Dual-frequency quenching technology stabilizes the tooth surface hardness at HRC55-60, with a hardened layer depth of 6-8mm

Application Results

Service life increased to 28 months, more than three times that of the original equipment. Successfully exported to major South American mining countries such as Chile and Peru, with a cumulative delivery volume exceeding 80 units.

 

 

 

 

15.Luoyang Hengguan Bearing: Crane Slewing Bearing Application Case in the UAE

 

 

Project Background

As a major market for construction machinery in the Middle East, the UAE has been continuously promoting large-scale infrastructure development in recent years, including port upgrades, oilfield development, and railway network expansion projects. Against this backdrop, a local operator of large-scale crane equipment faced a severe challenge: the original slewing bearings used in its cranes for oilfield and railway projects were experiencing premature wear, reduced rotational accuracy, and insufficient impact resistance under the high temperatures and high-intensity, continuous operation conditions of the desert. This led to increased equipment downtime and severely impacted construction progress.

Customized Solution

Luoyang Hengguan Bearing tailored a high-performance crane slewing bearing specifically for the specific operating conditions in the UAE:

Material and Heat Treatment: Made of 42CrMo high-strength alloy steel, the raceway surface achieves a hardness of HRC58-62 through medium-frequency quenching, with an effective hardened layer depth of ≥5mm. The base body is tempered to a hardness of HB270-300, ensuring high wear resistance and core toughness even in high-temperature environments. Optimized Structural Design: Utilizing a three-row cylindrical roller structure with optimized raceway curvature and contact angle, the static load rating is increased by approximately 30%, enabling balanced bearing performance against axial, radial, and overturning moments during lifting operations.

Application Results and Value

Significantly Improved Reliability: This slewing bearing has accumulated over 8,000 hours of wear-free operation in 24-hour operation on UAE oilfield cranes, achieving a service life over 2.5 times that of the original product.

Ensuring Construction Efficiency: Equipment failure rates have been reduced by approximately 60%, effectively ensuring progress on key projects such as the UAE Federal Railway Phase II during operations such as port container lifting and oilfield equipment installation.

International Market Recognition: Leveraging its successful application in UAE projects, Hengguan Bearing's slewing bearings have been exported to Middle Eastern markets such as Saudi Arabia and Qatar, establishing it as a key supplier of large cranes in the region.

 

 

 

16. Luoyang Hengguan Bearing: Large Blank Forgings Application Case in Russia

 

 

Project Background

As a key country along the Belt and Road Initiative, Russia has continuously invested in energy and infrastructure in recent years. Local heavy machinery manufacturers have placed stringent demands on the low-temperature resistance and extreme operating conditions of large blank forgings. In response to Russia's harsh climate (temperatures can reach -30°C in winter) and the demands of large-scale equipment manufacturing, Luoyang Hengguan Bearing, leveraging the technological advantages of the Luoyang Bearing Industry Base, has customized and developed a high-performance large blank forging solution for Russian customers.

Customized Solution

Material and Process: Utilizing 42CrMo high-strength alloy steel, the multi-directional die forging process refines the grain size, and the hardness of the base material is controlled to HB270-300 after quenching and tempering, ensuring that the forgings maintain high toughness even in low-temperature environments.

Low-temperature Adaptability Design: Optimizing the chemical composition and heat treatment profile to achieve an impact energy of ≥40J at -30°C, minimizing the risk of brittle fracture. Precision Control: Blank sizes range from 1500 to 5000mm in diameter, with machining allowances on critical mating surfaces controlled within ±2mm, providing a reliable substrate for subsequent finishing.

Application Results

This forging is used in the main shafts of Russian mining machinery and the bearing rings of shield machines. It has operated for over 6000 hours in extremely cold conditions without any abnormal deformation.

The customer's equipment production capacity has increased by 18%, and maintenance intervals have been extended to twice that of the original equipment, successfully replacing imported European products.

17.Luoyang Hengguan Bearing: Stacker-Reclaimer Slewing Bearing Application Case in Iran

 

 

Project Background

A large port material transfer center in Iran was experiencing premature wear and seizure in its stacker-reclaimer equipment, operating under the harsh conditions of high temperature and high dust. The original slewing bearings were severely impacting port operations. To address this pain point, Luoyang Hengguan Bearing, leveraging its experience exporting products to over 50 countries and regions, provided a customized slewing bearing solution for the Iranian customer.

Customized Solution

Material and Processing: Utilizing 42CrMo high-strength alloy steel, the raceway surface achieves a hardness of HRC58-62 through medium-frequency quenching, with an effective hardened layer depth of ≥5mm and a base hardness of HB270-300, ensuring the bearings maintain high wear resistance and toughness despite Iran's high-temperature environment.

Structural Design: A three-row cylindrical roller structure optimizes load distribution, increasing the static load rating by approximately 30%, enabling balanced bearing support of the axial, radial, and overturning moments experienced during stacker-reclaimer operations. Sealing and Protection: The integrated multi-sealing structure and special dustproof design effectively protect against dust intrusion common in Iran, extending the bearing's service life in harsh environments.

Application Results

Significantly Improved Reliability: This slewing bearing has operated continuously for over 6,000 hours without any problems at an Iranian port, achieving a service life more than double that of the original product.

Operational Efficiency Guarantee: The equipment failure rate has been reduced by approximately 50%, and the stacker-reclaimer's slewing positioning accuracy remains stable, ensuring the port's 24-hour continuous operation requirements.

Market Expansion: With its successful application in the Iranian project, Hengguan Bearing has further consolidated its position in the Middle East market.

18. Luoyang Hengguan Bearing: Crane Slewing Bearing Application Case Study at the Port of Monaco

 

Project Background

 

Monaco is a key market for high-end port equipment in Europe. Its port cranes place stringent demands on slewing bearing accuracy, corrosion resistance, and low-noise operation. A local port equipment operator's existing slewing bearings faced the dual challenges of salt spray corrosion and high load shock in a long-term marine climate, resulting in reduced rotational accuracy and increased maintenance costs. Luoyang Hengguan Bearing, with its experience exporting to over 50 countries and regions, ultimately gained recognition as a supplier of crane slewing bearings. Materials and Processing: Made of 42CrMo high-strength alloy steel, the raceway surface achieves a hardness of HRC58-62 through medium-frequency quenching, with an effective hardened layer depth of ≥5mm. The base body is tempered to HB270-300, ensuring the bearings offer both high wear resistance and strength in marine environments.

Structural Optimization: A three-row cylindrical roller structure optimizes load distribution, increasing the static load rating by approximately 30%, enabling balanced support of the axial, radial, and overturning moments experienced during crane operations.

Application Results: Significantly Improved Reliability: This slewing bearing has operated continuously for over 7,000 hours on a crane in the Monaco port without any issues, achieving a service life over 2.5 times that of the original product.

Market Expansion: With its successful application in the Monaco project, Hengguan Bearings has further consolidated its position in the high-end European port equipment market.