Gansu Hailin Zhongke Technology Co., Ltd.

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ABOUT US

About Hailin Bearing

Customer satisfaction|strategic alliance|mutual benefit and win-win

Gansu Great Wall Electric Group Co., Ltd.

Inheriting the Spirit and Pursuing Independent Innovation.

Rooted in the core spirit of “Third-Front Construction” since its founding in 1966, the company has transformed from a traditional state-owned enterprise into a modern one through key initiatives such as the shareholding system reform in 2001.

Innovation-Driven and Intelligent Transformation.

With an annual R&D investment of over 30 million yuan, the company promotes product and technological upgrading. Meanwhile, more than 1 billion yuan has been invested in intelligent and green transformation, and a national-level green factory has been built to pursue high-quality development.

Deepening Professionalism and Forging Industry Leadership.

Holding a dominant position in the domestic commercial vehicle wheel-end bearing market, the company has been recognized as “a Single-Product Champion of Manufacturing” by the Ministry of Industry and Information Technology, demonstrating its absolute focus and leadership in its niche sector.

Rooted in China, Reaching the World.

Our products are sold to more than 20 countries and regions worldwide with stable annual export volume. Benchmarked against international standards, the company is committed to evolving from a domestic leader to a globally competitive industry benchmark.

Founded in 1966

Establish Tianshui Hailin Bearing Factory

40+

Domestic and international partners

5000+

Product varieties

60 years+

Experience in bearing R&D and manufacturing

In 1966

Hailin was invested and constructed by the Ministry of First Machinery of the People’s Republic of China, and is a large-scale backbone enterprise in China’s bearing industry.

In 1982

Hailin merged Tianshui Diesel Engine Factory and Tianshui Tractor Gear Factory to expand the scale of bearing production

In 2001

Gansu Hailin Zhongke Technology Co., Ltd. was restructured and established to optimize product structure and expand production capacity

In 2019

The Hailin Company’s industrial upgrading and technological transformation project of going out of the city and entering the park began to be implemented.

In 2021

In 2021, Hailin settled in the park, realized the high-end, intelligent, and green production process.

Lean manufacturing across the entire industrial chain

widely applied in various fields

Commercial Vehicles (New Energy)

Passenger Cars (New Energy)

Agricultural machinery

Construction machinery

Transmission components

Precision machine tools

PRODUCTS

Products

National-level Green Plant

China’s No.1 Brand for Tapered Roller Bearings

has transformed from a traditional manufacturer into a modern enterprise driven by intelligence and innovation. By ensuring quality and efficiency through intelligent production and seizing the high-end market with technological R&D, the company is striving toward its goal of becoming China’s No.1 brand for tapered roller bearings.

Tapered Roller Products Bearings for New Energy Vehicle Gearboxes Carbonitrided Bearings High-precision adjustment-free bearings High-Speed, Low-Noise Tapered Roller Bearings Shield Machine Cutter Head Bearings Bearings for Wind Turbine Yaw and Pitch Gearboxes

Tapered Roller Products

Gansu Hailin tapered rollers feature a unique spherical crown cavity design. These rollers maximize the streamlined characteristics of the material, enhance material compactness, and effectively prevent pitting and various forms of damage on the roller surface. This results in a smooth and refined appearance while significantly improving wear resistance and durability. In addition, the stable precision of the products exceeds the industry Grade II standard, achieving a true dual breakthrough of "outstanding appearance and superior performance".

Bearings for New Energy Vehicle Gearboxes

These bearings are adapted to the high-speed and high-temperature operating conditions of new energy vehicle gearboxes, withstand combined radial and axial loads simultaneously, and feature low friction, low noise and high rigidity. With optimized profiles on their inner and outer raceways as well as roller outer diameters, they prevent stress concentration and offer excellent wear resistance and high-temperature resistance, thus providing stable and long-lasting support for the transmission systems of new energy vehicles.

Carbonitrided Bearings

These bearings address core pain points in operation such as wear, short service life and deformation. Upgraded with a dedicated heat treatment process, they provide reliable transmission support for new energy electric drive axles, heavy-duty truck axles and other applications. Their key advantages are as follows: Enhanced surface performance and extended service life: After carbonitriding treatment, the rings exhibit significantly improved surface hardness and wear resistance, reducing wear-related downtime and maintenance costs. The residual compressive stress increases the fatigue limit of the steel and provides corrosion resistance, adapting to complex working conditions and lowering replacement frequency. Optimized forming accuracy and stable operation: Nitrogen improves the hardenability of the case layer, enabling low-temperature quenching and slow cooling to reduce the risk of deformation and cracking, thus ensuring dimensional accuracy. The excellent core toughness is retained to withstand impact loads and support continuous and stable equipment operation.

High-precision adjustment-free bearings

In order to solve the problem of easy wear and tear and complex maintenance of heavy truck wheel end bearings, this high-precision non-adjustment bearing takes "durability and worry-free" as the core to protect the stable operation of the equipment. The height and outer diameter of the product adopt special tolerance, strong interchangeability, replacement does not need to be screened, can meet the requirements of axial clearance pre-adjustment, can be used immediately after installation, greatly save assembly time and labor costs; The ferrule and rolling element are made of high-quality bearing steel, which is made of precision processes such as forging and salt bath quenching, reaching the P5 high-precision standard, which can significantly extend the life of the hub unit, reduce downtime losses, and run more smoothly and securely. The working surface adopts an optimized curve design, which greatly reduces stress concentration, wears more slowly and generates less heat under high load, extending life and improving operational stability.

High-Speed, Low-Noise Tapered Roller Bearings

These high-speed, low-noise bearings focus on the core requirements of high-speed equipment and provide reliable solutions. In response to the demand for smooth operation and low noise in high-speed equipment, these bearings have optimized rotational accuracy, achieved effective control over vibration levels, and adjusted the contact between rollers, ribs and raceways. This ensures outstanding stability during high-speed operation and reduces vibration and noise, improving the equipment’s working environment and minimizing wear. Aligning with the industrial goal of “low maintenance and long service life”, these bearings reduce stress concentration through optimized working surface profiling, thus extending service life, enhancing the reliability of continuous operation, and helping enterprises cut maintenance costs and downtime losses.

Shield Machine Cutter Head Bearings

These bearings are specially designed for the extreme heavy-load working conditions of shield machine cutter heads, and can simultaneously withstand combined loads including radial, axial and overturning moments. Featuring extra-large size and ultra-precision manufacturing, they boast high rigidity, high reliability and long service life. The optimized load-bearing structure ensures smooth start, stop and stable operation of the cutter head, providing core support for the continuous and efficient tunneling of tunnel construction projects.

Bearings for Wind Turbine Yaw and Pitch Gearboxes

These bearings are specially designed for wind turbine yaw and pitch gearboxes, capable of withstanding heavy axial and radial loads as well as cyclic alternating load impacts. Featuring high load-bearing capacity, long service life and high reliability, they fully meet the complex working conditions and long-life operation requirements of wind power gearboxes.

Technical

Technical advantages

Hailin adopts the design mode of “CAD three-dimensional design+CAE simulation analysis”,and cooperates with the external test, internal test, customer road test and other integrated research and development system. The design follows the rolling bearing design method, and applies the “Bearing Parametric Navigation Design System” and “Process Intelligent Design System” to quickly complete the design tasks of various bearings; implements the PPQP lean management mode for new products and through the PLM system to ensure the new product realizes the management of the whole life cycle. It has many advantageous products in the fields of heavy-duty trucks, automobile gearboxes, transmission systems, construction machinery, and agricultural machinery, and can provide users with complete bearing application solutions.

In recent years, the company has been engaged in high-precision long-life bearings, high-precision adjustment-free bearings, pre-adjusted and maintenance-free truck wheel hub units, car wheel hub units, low starting friction torque bearings, new energy high-speed bearings, self-lubricating technology, intelligent monitoring technology, surface modification. It has carried out research and development in the fields of surface flexibility treatment technology and carbonitriding technology and carried out industry-university-research cooperation with Xi’an Jiaotong University, Lanzhou Institute of Chemical Technology, Chinese Academy of Sciences, Henan University of Science and Technology, Lanzhou University of Technology, Xi’an University of Technology and other universities and research institutes.

Hailin signed a strategic cooperation agreement with Lanzhou Institute of Physical Chemistry on “performance analysis and optimization of anti-rust oil and grinding fluid”.

Hailin signed a strategic cooperation agreement with Xi’an Jiaotong University on “intelligent bearing unit and intelligent monitoring technology application”.

Gansu province automotive bearing and transmission components engineering research center

Gansu Provincial Industrial Design Center

Gansu bearing engineering technology research center

Gansu Provincial Key Laboratory of vibration, noise and reliability of rolling bearings

National-level Enterprise Technology Center

R&D team of more than 200 people

More than 60 senior product design engineers

Over 100 new products are designed and developed annually

The company has a complete CAD/CAE/CAPP/PLM design system

Has 66 patents

Participated in the drafting and formulating 3 national and industrial standards

Automotive gearbox bearing products were rated as "National Key New Products"