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Double row angular contact ball bearings Suppliers

Double Row Angular Contact Ball Bearings

‌The main features of double-row angular contact ball bearings include strong load-bearing capacity, high rigidity, low friction coefficient, strong adaptability, space-saving, simplified configuration, and long life‌.
High rigidity configuration:

Due to the double-row design, double-row angular contact ball bearings can provide higher rigidity, which means that they can maintain smaller deformation when bearing larger loads, which is crucial for mechanical equipment that requires high-precision operation.

Bidirectional axial displacement limitation:

Double-row angular contact ball bearings can limit the bidirectional axial displacement of the shaft or housing. This feature enables it to effectively reduce vibration and noise in many applications and improve the stability and reliability of the equipment.

Excellent load-bearing capacity:

It can simultaneously withstand radial loads and axial loads acting in two directions, which enables it to maintain stable performance under a variety of working conditions.

Wide range of applications:

Double-row angular contact ball bearings are suitable for a variety of occasions, especially those mechanical systems that need to withstand both radial and axial loads, such as machine tool spindles, metallurgical equipment, excavators, high-speed offset printing presses, etc. In these applications, it can not only improve the performance and life of the equipment but also significantly reduce maintenance costs.

High-speed operation capability:

Double-row angular contact ball bearings can operate at higher speeds, thanks to their optimized design and material selection, ensuring low friction and wear even at high speeds.

Product d (mm) D (mm) B (mm) Cr (KN) C0r (KN)
3800 3800-2Z 3800-2Rs 10 19 7 2.08 1.37
3801 3801-2Z 3801-2Rs 12 21 7 2.15 1.52
3802 3802-2Z 3802-2Rs 15 24 10 3.09 2.31
3803 3803-2Z 3803-2Rs 17 26 7 2.43 2.02
3804 3804-2Z 3804-2Rs 20 32 10 5.60 4.75
3805 3805-2Z 3805-2Rs 25 37 10 5.90 5.50
3806 3806-2Z 3806-2Rs 30 42 10 6.10 6.00
3807 3807-2Z 3807-2Rs 35 47 10 6.50 6.80
3808 3808-2Z 3808-2Rs 40 52 10 6.90 7.60
3809 3809-2Z 3809-2Rs 45 58 10 7.00 8.10
3810 3810-2Z 3810-2Rs 50 65 12 8.50 10.20
3811 3811-2Z 3811-2Rs 55 72 13 10.70 13.10
3812 3812-2Z 3812-2Rs 60 78 14 14.20 17.10
3813 3813-2Z 3813-2Rs 70 90 15 18.80 23.20
3814 3814-2Z 3814-2Rs 70 90 15 18.80 23.20
3816 3816-2Z 3816-2Rs 80 100 15 19.20 24.80
3818 3818-2Z 3818-2Rs 90 115 19 27.00 35.50
3820 3820-2Z 3820-2Rs 100 125 19 28.00 39.00
3900 3900-2Z 3900-2Rs 10 22 10 4.08 2.36
3901 3901-2Z 3901-2Rs 12 24 10 4.36 2.72
3902 3902-2Z 3902-2Rs 15 28 10 4.55 3.12
3903 3903-2Z 3903-2Rs 17 30 10 4.99 3.79
3904 3904-2Z 3904-2Rs 20 37 13 9.30 6.60
3905 3905-2Z 3905-2Rs 25 42 13 9.60 7.50
3906 3906-2Z 3906-2Rs 30 47 13 9.90 8.30
3907 3907-2Z 3907-2Rs 35 55 15 12.90 11.30
3908 3908-2Z 3908-2Rs 40 62 16 17.40 15.80
3000 3000-2Z 3000-2Rs 10 26 12 5.50 3.20
3001 3001-2Z 3001-2Rs 12 28 12 6.10 3.70
3002 3002-2Z 3002-2Rs 15 32 13 8.50 5.40
3003 3003-2Z 3003-2Rs 17 35 14 9.00 6.00
3004 3004-2Z 3004-2Rs 20 42 16 14.20 9.60
3005 3005-2Z 3005-2Rs 25 47 16 15.20 11.00
3006 3006-2Z 3006-2Rs 30 55 19 20.30 15.50
3007 3007-2Z 3007-2Rs 35 62 20 24.20 20.40
3008 3008-2Z 3008-2Rs 40 68 21 24.50 20.80

Ningbo Jinxin Bearing
Technology Co., Ltd.

Ningbo Jinxin Bearing Technology Co., Ltd, established in November 2001, is a professional Double row angular contact ball bearings Suppliers and Double row angular contact ball bearings Factory. The company mainly produces and sells metric miniature bearings, inch miniature bearings, flange bearings, stainless steel bearings, flat thrust ball bearings, angular contact bearings with an inner diameter of 2-30mm and an outer diameter of 50mm or less, which are widely used in all kinds of miniature electric motors, instruments and meters, precision instruments, mechanical equipments, household electrical appliances, medical equipments, fishing equipments, mining equipments and precision machine tools, etc. The company is located in Ningbo City, China (Dongqiao Town, Haishu).
The company is located in China miniature bearings base in Ningbo City (Dongqiao Town, Haishu District), the company covers an area of more than 20 acres, the construction area of about 30,000 square meters, with complete manufacturing strength and product testing capabilities, in terms of manufacturing equipment, has a full process of CNC lathe machining production line, grinding production line, heat treatment, cage workshop, to meet a variety of types, specifications, precision levels and special requirements for the use of bearing product processing needs. The company has passed the IATF1616 certification.
The company has passed the IATF16949 international quality system certification.
Our goal is to understand the potential needs of customers, adhere to the customer-centered, quality and reputation-based, through technological innovation to meet the different working conditions of customers, in order to obtain faster speed, lower noise and more comfortable use of feelings. Over the past few years in line with the “quality as the fundamental, integrity as the cornerstone” purpose, warmly welcome new and old friends to come to consult, negotiate, we look forward to working with you in good faith.

  • 2001

    Established In

  • 150+

    Employees

  • 30

    Production Line

  • 30000

    Factory Area

Certificate Of Honor
  • High-tech enterprise certificate
  • IATF
  • National Science and Technology Progress Award
  • Quality Innovation Award
  • Zhejiang Province's science and technology-based small and medium-sized enterprises
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Double row angular contact ball bearings Industry knowledge

Bearings play a crucial role in industrial machinery, and double-row angular contact ball bearings, as a high-efficiency bearing type, have always been a focus of attention for engineers and manufacturers in terms of design principles and application value. Ningbo Jinxin Bearing Technology Co., Ltd., leveraging its strong R&D capabilities, is committed to providing customers with customized bearing solutions, especially in the field of double-row angular contact ball bearings, capable of precise development and production based on specific drawings or samples.


Question 1: What is the basic definition of a double-row angular contact ball bearing, and what is its position in the bearing family?
A double-row angular contact ball bearing is a common type of rolling bearing, its structure consisting of two single-row angular contact ball bearings combined, designed to simultaneously withstand radial and axial loads. The core feature of this bearing lies in its contact angle design, allowing it to operate stably in high-speed rotational environments, while the double-row layout enhances load-bearing capacity and rigidity. In bearing classification, it is considered a high-performance option, particularly suitable for applications requiring compact space and high reliability. When developing such bearings, Ningbo Jinxin Bearing Technology Co., Ltd. utilizes its team's expertise to optimize designs based on customer requirements, ensuring precise matching at the definition level, thus achieving a seamless transition from concept to finished product.


Question 2: How does the internal structure of a double-row angular contact ball bearing affect its performance?
This type of bearing typically includes multiple components such as inner and outer rings, rolling elements (spherical bodies), a cage, and seals. The double-row design means the balls are divided into two groups, each with a specific contact angle, allowing the bearing to handle combined loads—a combination of radial and axial forces—within a single unit. The advantage of this layout is that it increases overall rigidity and stability by increasing the number of contact points, while reducing the risk of wear. It is worth noting that the optimization of the internal structure directly affects the bearing's lifespan and efficiency; for example, the cage design can affect lubrication distribution and operating noise. In this field, the R&D team at Ningbo Jinxin Bearing Technology Co., Ltd. excels at analyzing structural details and performing reverse engineering based on customer samples or drawings to ensure that the manufactured bearings meet strict tolerance standards and the requirements of various demanding operating conditions.



Question 3: What are the unique advantages of double-row angular contact ball bearings compared to other bearing types?
The advantages of double-row angular contact ball bearings are mainly reflected in their versatility and durability. First, due to its double-row design, it can simultaneously handle high radial and axial loads, which is often difficult to achieve in single-row bearings. Second, the optimized contact angle allows it to maintain low friction and low heat generation during high-speed rotation, thereby improving overall mechanical efficiency. Furthermore, its compact structure makes it highly valuable in space-constrained applications, reducing equipment size and complexity. These advantages make double-row angular contact ball bearings the preferred choice in industrial automation, precision machinery, and other fields. Ningbo Jinxin Bearing Technology Co., Ltd. fully considers these characteristics during the development process, leveraging its R&D capabilities to customize bearing solutions for customers, ensuring that products not only leverage these advantages but also maximize performance in specific applications.


Question 4: In which industrial applications are double-row angular contact ball bearings commonly used, and how do they solve practical problems?
These bearings are widely used in scenarios with high rotational speeds and complex loads, such as machine tool spindles, motor drive systems, wind turbines, and automotive transmissions. In these applications, the double-row design helps solve problems such as equipment vibration, noise, and premature failure—by effectively distributing loads, it improves system stability and extends mechanical life. Crucially, bearing selection often depends on load type and installation environment. The versatility of double-row angular contact ball bearings makes them the preferred choice for applications requiring high precision and reliability. Leveraging the capabilities of Ningbo Jinxin Bearing Technology Co., Ltd., the company can customize production based on customer drawings to meet these application needs, ensuring seamless integration of bearings into specific industrial environments and helping customers avoid equipment failures and improve production efficiency.


Question 5: What key factors need to be considered when designing or customizing double-row angular contact ball bearings?
Core considerations when designing this type of bearing include contact angle selection, material compatibility, lubrication methods, and sealing performance. The contact angle directly affects load-bearing capacity and needs to be adjusted according to actual operating conditions; material selection relates to wear resistance and corrosion resistance, especially in harsh environments; and lubrication and sealing design are crucial for reducing maintenance needs and extending lifespan. These factors collectively determine the performance boundaries of the bearing. The R&D team at Ningbo Jinxin Bearing Technology Co., Ltd. plays a key role in this process. They can analyze customer-provided samples or drawings, optimize these design parameters, and utilize advanced processes to produce highly adaptable bearings, ensuring that each customized project meets unique technical specifications.


Question 6: Why choose Ningbo Jinxin Bearing Technology Co., Ltd. for the development and production of double-row angular contact ball bearings?
Ningbo Jinxin Bearing Technology Co., Ltd.'s core advantage lies in its strong R&D capabilities, enabling it to provide end-to-end customized services when handling double-row angular contact ball bearings. The company's team is proficient in bearing dynamics principles and can perform reverse engineering and innovative optimization based on customer drawings or samples, ensuring products meet specific performance requirements such as load capacity, speed limits, and durability. This capability not only shortens the development cycle but also reduces customer risk by avoiding the limitations of general-purpose bearings. In actual cooperation, Ningbo Jinxin Bearing Technology Co., Ltd. transforms knowledge and information into actual products through rigorous quality control processes, helping customers maintain a technologically leading position in a highly competitive market.


Question 7: What are the professional considerations for the maintenance and selection strategies of double-row angular contact ball bearings?
Maintaining this type of bearing focuses on regularly checking the lubrication condition, axial preload, and seal integrity to avoid excessive wear. Selection strategies require evaluating load direction, installation space, and environmental conditions—for example, in high-speed applications, the bearing contact angle design must be optimized to reduce vibration. Ningbo Jinxin Bearing Technology Co., Ltd. provides professional support in this field. Its R&D team can interpret customer needs, guide bearing selection and maintenance processes, and ensure long-term performance stability. This combination of expertise makes the company a reliable production partner, helping customers achieve efficient equipment operation.