Double-Row Deep Groove Ball Bearings

Double-row deep groove ball bearings are a type of rolling element bearing that consists of two rows of balls, allowing them to support both radial and axial loads. They are an advanced form of the standard deep groove ball bearings, designed to offer higher load carrying capacity and better stability. The design features a simple and compact structure, resulting in low friction, smooth operation, reduced noise, and ease of maintenance.

Double-row deep groove ball bearings are widely used in high-speed and high-precision applications due to their versatile performance and reliability. These bearings are commonly used in automotive, industrial, and household equipment.

Main Models and Specifications

Here is a sample table of common double-row deep groove ball bearing models and their specifications:

图片：Double Row Deep Groove Ball Bearings

Product Applications

Double row deep groove ball bearings are widely used in many fields such as automobiles, motors, machine tools, agricultural machinery and so on.

Double row deep groove ball bearings are widely used in all kinds of mechanical equipment because of their ability to withstand radial load and the stability of high-speed rotation. Specifically:

1. Automotive field: double row deep groove ball bearings are mainly used in engine, transmission, steering and other key components. These bearings need to withstand high-speed rotation and heavy load impact, and double row deep groove ball bearings with its unique structure and materials, can meet these harsh working conditions, to ensure the safety and stable operation of the car 1.
2. Motor field: double row deep groove ball bearings are widely used in all kinds of motors, such as AC motors, DC motors and so on. These motors need to rotate at high speed and bear certain radial loads, double row deep groove ball bearing structure makes it able to perform this task1.
3. Machine tools and agricultural machinery: double row deep groove ball bearings are also commonly used in machine tools and agricultural machinery, used to support the rotating parts, to ensure the smooth operation of the equipment and machining accuracy2.

In addition, double row deep groove ball bearings are also suitable for occasions that need to withstand radial and axial loads in both directions, and their high precision and long service life make them a reliable partner for industrial equipment2.

To sum up, double row deep groove ball bearings play an important role in mechanical equipment by virtue of its excellent performance and wide range of applications.

Product Features

The product characteristics of double row deep groove ball bearings mainly include simple structure, strong load carrying capacity, flexible rotation, long service life as well as easy installation and maintenance.

• Simple structure: double row deep groove ball bearings are composed of outer ring, inner ring, steel ball and cage, this design makes its structure simple, light weight, compact size, easy to manufacture and assembly.
• Strong load carrying capacity: double row deep groove ball bearings can withstand large radial load and axial load, also can limit the axial displacement of the shaft or shell in both directions. In addition, it also has a certain degree of self-aligning ability, which helps to improve the stability of the bearing. Compared with single row deep groove ball bearings, under the condition of the same inner and outer diameters, double row deep groove ball bearings have greater load carrying capacity.
• Flexible rotation: due to its structure and material characteristics, double row deep groove ball bearings are flexible when rotating and can withstand higher speed and torque. At the same time, its friction coefficient is small, can reduce the friction loss of mechanical equipment, improve efficiency.
• Long service life: double row deep groove ball bearings adopt excellent material and structure design, which makes them not easy to wear and deformation in the process of long time use, thus ensuring the service life of the bearings and reducing the maintenance cost.
• Convenient installation and maintenance: the outer ring and inner ring of double row deep groove ball bearings can be installed separately, which makes it very convenient in the process of bearing installation and maintenance, and can greatly shorten the maintenance time.

In addition, double row deep groove ball bearings are also suitable for high-speed rotation environment, and are equipped with two glass fibre reinforced nylon cages, which can be operated at temperatures up to 120℃. However, it should be noted that when there is an alignment error between the inner and outer rings of double row deep groove ball bearings, it will lead to additional loads, which will increase the loads borne by the steel balls and cages and shorten the working life of the bearings, so the permissible angular error is limited.

Summary

Double-row deep groove ball bearings are essential components in modern machinery and equipment due to their high load-carrying capacity, smooth operation, low friction, and good sealing performance. They are widely used in automotive, power tools, home appliances, industrial machinery, agricultural equipment, and renewable energy systems like wind turbines. The design of these bearings allows for reliable performance even under heavy loads and high speeds, making them indispensable in various industries. With their versatile applications, ease of maintenance, and long service life, double-row deep groove ball bearings continue to play a key role in improving the efficiency and reliability of mechanical systems.