Spherical Roller Bearings Manufacturers

Ningbo DHK Precision Bearing Co., Ltd.

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Ningbo DHK Precision Bearing Co., Ltd. (“DHK” for short) is a specialist enterprise engaged in the R&D, manufacture and sales of bearings.Is a famous China Spherical Roller Bearings Manufacturers and Spherical Roller Bearings Factory, we offer Wholesale Spherical Roller Bearings for sale. And is located in Ningbo Zhenhai Economic Development Zone with convenient transportation. Since the establishment for over a decade, "technology", "quality" and "service" have always been the initial issues in our mind for the sake of development. We provide reliable products and special customized services for global enterprises in heavy industry and have got the Satisfaction and won good reputation of a number of enterprises at home and abroad.

DHK mainly produces cylindrical roller bearings, conical roller bearings, self-aligning roller bearings, ball bearings, as well as various kinds of non-standard bearings and bearings with specially treated surface. So far, DHK’s bearings have been widely applied in such fields as engineering machinery, industrial pump, machine tool, compression engine, gear case, wind power and metallurgy in developed European and American countries.

DHK has the measuring room and inspection room of bearings in the industry and has introduced top-end inspection equipment worldwide and established the QC system in China,thus guaranteeing product quality in an all-round way.


DHK has passed IATF16949 quality system certification and ISO14001 environmental management system certification;and DHK is a national high-tech enterprise.

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  • Environmental Managementsystem Certificate
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  • Measurement Management System
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  • High-tech enterprises

Latest News

Industry Knowledge Expansion

As a key component of industrial machinery, spherical roller bearings play an important role in transmission and bearing capacity. Its reliability under high loads, high speeds and harsh operating conditions has made it an indispensable component in many industries.

1. Technological innovation: open up the road for the development of the industry
1.1 Material Innovation
Under different working conditions, spherical roller bearings need to have excellent corrosion resistance, wear resistance and high temperature stability. Manufacturers continue to invest in research to find more advanced materials such as high-strength steels, ceramic composites, etc., to improve the performance of bearings. The balance of high-strength steel in its strength and toughness allows it to maintain long-life operation under high-load conditions. Ceramic materials are suitable for applications in extreme environments due to their excellent corrosion resistance and high temperature characteristics.
1.2 Design optimization
With computer-aided design software, manufacturers can perform precise simulations and analyzes to optimize the geometry of spherical roller bearings. This includes the design of the rolling elements and raceways to minimize energy loss and friction, increasing the efficiency of the bearing. In addition, surface treatment techniques such as coating, grinding and polishing can improve surface quality, further reduce friction and wear, and extend the service life of bearings.

2. Excellent quality: a solid foundation to win the market
2.1 Manufacturing process control
The manufacturing process of spherical roller bearings requires high precision machining and assembly. The manufacturer ensures the accuracy and stability of each production link through a strict quality control process. From the screening and testing of raw materials, to the precision machining of parts and the assembly of final products, each step is strictly monitored to ensure product consistency and reliability.
2.2 Quality inspection
The manufacturer adopts a series of advanced quality inspection methods to ensure that the products meet high standards. High-precision measuring equipment enables precise measurements of bearing dimensions, geometry and surface quality. Infrared thermal imaging technology can be used to detect the temperature distribution of bearings during operation and help discover potential abnormalities.

3. Sustainable development: the balance between technology and environmental protection
3.1 Energy saving and emission reduction
Manufacturers are committed to reducing energy consumption and carbon emissions during production. They invest in updated production equipment to improve production efficiency and reduce waste of resources. An optimized lubrication scheme can also reduce the friction loss of the bearing during operation, thereby reducing energy consumption.
3.2 Circular Economy
Manufacturers encourage customers to send end-of-life bearings back for rework or recycling. This helps reduce waste generation and saves raw materials. In addition, some manufacturers are also researching and developing degradable materials to reduce the impact on the environment.