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Double row deep groove ball bearings Suppliers

Double Row Deep Groove Ball Bearings

Double-row deep groove ball bearings consist of two adjacent hallways and a set of steel balls. This structure enables it to withstand radial loads, bidirectional axial loads, and torque. The symmetrical design of the inner and outer rings gives it the ability to automatically align in the axial direction, thereby maintaining stability during high-speed rotation. Each ballway can independently bear the load, ensuring the overall load-bearing capacity of the bearing. In addition, the circumferentially distributed grooves allow the steel balls to roll freely, reducing friction and wear and improving operating efficiency.
In practical applications, the load capacity of double-row deep groove ball bearings is much higher than that of single-row deep groove ball bearings. For example, on the spindle of a machine tool, a double-row deep groove ball bearing can withstand large axial and radial loads and is suitable for supporting high-speed spindles; in heavy machinery such as mining equipment and metallurgical equipment, it can withstand impact loads and adapt to complex working environments.

Bearing Model Appearance dimensions Load Rated
Product d (mm) D (mm) B (mm) r (mm) Cr (KN) C0r (KN)
4200 4200-2Z 4200-2RS 10 30 14 0.5 8 5
4201 4201-2Z 4201-2RS 12 32 14 0.5 11 6
4202 4202-2Z 4202-2RS 15 35 14 0.6 12 7
4203 4203-2Z 4203-2RS 17 40 16 0.6 16 10
4204 4204-2Z 4204-2RS 20 47 18 1 21 13
4205 4205-2Z 4205-2RS 25 52 18 1 23 16
4206 4206-2Z 4206-2RS 30 62 20 1 29 22
4207 4207-2Z 4207-2RS 35 72 23 1.1 40 30
4208 4208-2Z 4208-2RS 40 80 23 1.1 42 35
4209 4209-2Z 4209-2RS 45 85 23 1.1 45 38
4210 4210-2Z 4210-2RS 50 90 23 1.1 47 42
4211 4211-2Z 4211-2RS 55 100 25 1.5 43 43
4212 4212-2Z 4212-2RS 60 110 28 1.5 56 56
4213 4213-2Z 4213-2RS 65 120 31 1.5 67 67
4214 4214-2Z 4214-2RS 70 125 31 1.5 70 71
4215 4215-2Z 4215-2RS 75 130 31 1.5 72 76
4216 4216-2Z 4216-2RS 80 140 33 2 81 90
4217 4217-2Z 4217-2RS 85 150 36 2 94 106
4218 4218-2Z 4218-2RS 90 160 40 2 113 123
4300 4300-2Z 4300-2RS 10 35 17 0.6 13 8
4301 4301-2Z 4301-2RS 12 37 17 1 13 8
4302 4302-2Z 4302-2RS 15 42 17 1 13 12
4303 4303-2Z 4303-2RS 17 47 19 1 17 15
4304 4304-2Z 4304-2RS 20 52 21 1.1 20 17
4305 4305-2Z 4305-2RS 25 62 24 1.1 26 26
4306 4306-2Z 4306-2RS 30 72 27 1.1 36 36
4307 4307-2Z 4307-2RS 35 80 31 1.1 41 42
4308 4308-2Z 4308-2RS 40 90 33 1.5 46 49
4309 4309-2Z 4309-2RS 45 100 36 1.5 82 70
4310 4310-2Z 4310-2RS 50 110 40 1.5 82 70
4311 4311-2Z 4311-2RS 55 120 43 2 98 83
4312 4312-2Z 4312-2RS 60 130 46 2.1 112 98
4313 4313-2Z 4313-2RS 65 140 48 2.3 123 108
4314 4314-2Z 4314-2RS 70 150 51 2.3 135 108
4315 4315-2Z 4315-2RS 75 160 55 2.5 142 126
4316 4316-2Z 4316-2RS 80 170 58 2.5 158 132

Ningbo Jinxin Bearing
Technology Co., Ltd.

Ningbo Jinxin Bearing Technology Co., Ltd, established in November 2001, is a professional Double row deep groove ball bearings Suppliers and Double row deep groove 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 deep groove ball bearings Industry knowledge

In the bearing industry, double-row deep groove ball bearings are a key component, attracting significant attention due to their unique design and wide applicability. Ningbo Jinxin Bearing Technology Co., Ltd., always prioritizing customer needs, is committed to optimizing bearing performance to meet diverse operating conditions through technological innovation and quality assurance.


What is a double-row deep groove ball bearing? What are the fundamental differences between it and a single-row version?

A double-row deep groove ball bearing is a bearing structure with two rows of balls between the inner and outer rings, designed to increase overall load-bearing capacity by increasing the number of balls. In contrast, a single-row deep groove ball bearing has only one row of balls. Therefore, the double-row design better distributes loads, enhancing bearing rigidity and stability. Ningbo Jinxin Bearing Technology Co., Ltd. focuses on understanding customers' potential needs for high-load operating conditions during research and development. Through precise design and material selection, they ensure that bearings maintain stable performance under high-speed operation, thereby reducing the risk of equipment failure.


Why are double-row deep groove ball bearings preferred in certain applications? What are their main advantages?

The main advantages of double-row deep groove ball bearings lie in their excellent radial and axial load-carrying capacity and higher rigidity, making them particularly suitable for space-constrained but demanding environments. For example, in industrial machinery or automotive transmission systems, the double-row design effectively absorbs vibration and shock, extending equipment life. Ningbo Jinxin Bearing Technology Co., Ltd., based on quality and reputation, optimizes the internal structure of bearings through innovative processes, thereby reducing noise while improving operating efficiency, meeting customers' pursuit of a "more comfortable user experience."


In which industries or equipment are double-row deep groove ball bearings commonly used? How do they adapt to different operating conditions?

These bearings are widely used in motors, pumps, gearboxes, and precision instruments, performing exceptionally well in high-speed or heavy-load scenarios. Their adaptability stems from design flexibility, enabling them to cope with complex operating conditions such as high temperature, high humidity, or polluted environments. Ningbo Jinxin Bearing Technology Co., Ltd., through continuous technological innovation, such as optimizing raceway geometry and lubrication systems, helps bearings achieve "faster speeds" and "lower noise" under varying conditions, ensuring smooth and reliable equipment operation.


How can technological innovation improve the performance of double-row deep groove ball bearings? What unique approaches does Ningbo Jinxin Bearing Technology Co., Ltd. take in this regard?

Technological innovation includes material upgrades, surface treatments, and optimized thermal management to enhance the wear resistance and fatigue resistance of bearings. Ningbo Jinxin Bearing Technology Co., Ltd. focuses on developing customized solutions, such as using advanced simulation technology to predict bearing behavior under different operating conditions, thereby optimizing the design in advance. This approach not only improves the overall efficiency of bearings but also achieves energy-saving goals by reducing frictional losses, directly responding to customers' needs for a "more comfortable user experience."


How does the design of double-row deep groove ball bearings contribute to the pursuit of faster speeds and lower noise? How does Ningbo Jinxin ensure these performance characteristics?

Double-row deep groove ball bearings significantly reduce operating noise and increase speed limits through optimized ball arrangement and clearance control, thanks to reduced internal friction and vibration. During the manufacturing process, Ningbo Jinxin Bearing Technology Co., Ltd. strictly adheres to a quality control system, combined with high-precision machining technology, to ensure the balance and consistency of each bearing. This commitment to "quality and reputation" ensures that the bearings remain quiet and stable during high-speed operation, helping customers' equipment achieve superior performance.


What role do quality and reputation play in bearing manufacturing? How does Ningbo Jinxin integrate this concept into the production of double-row deep groove ball bearings?

Quality and reputation are the cornerstones of bearing reliability, directly impacting equipment lifespan and user safety. Ningbo Jinxin Bearing Technology Co., Ltd. ensures defect-free bearing delivery by establishing a full-process monitoring system, from raw material selection to finished product testing. Simultaneously, the company values ​​customer feedback and continuously iterates designs to meet specific operating conditions, demonstrating its commitment to a "customer-centric" approach. This focus not only improves the overall durability of double-row deep groove ball bearings but also strengthens the brand's credibility in the industry.


What are the future development trends of double-row deep groove ball bearings? How does Ningbo Jinxin address these challenges through innovation?

With the rise of industrial automation and green manufacturing, bearings are evolving towards higher efficiency and environmental friendliness, such as integrating intelligent monitoring functions or using sustainable materials. Ningbo Jinxin Bearing Technology Co., Ltd. actively embraces technological innovation, driving bearings to achieve higher performance under extreme conditions through the development of new coatings and vibration reduction technologies. This forward-thinking approach aims to help customers meet the challenges of future operating conditions while delivering on the vision of "faster speeds, lower noise, and a more comfortable user experience."