Deep groove ball bearings are the most widely used rolling bearings. They are typical contact bearings with steel balls as rolling elements. They are widely used in various mechanical equipment due to their reasonable structural design, simple manufacturing, relatively low cost and stable operation. This type of bearing structure has a set of deep arc grooves, and the groove radius is slightly larger than the radius of the steel ball. Therefore, it can bear radial loads and axial loads at the same time, and is especially suitable for high-speed rotation occasions.Ball bearings are a common type of rolling bearings, mainly used to support rotating shafts and reduce motion friction. They consist of an inner ring, an outer ring, rolling elements (balls), and a cage. Compared with sliding bearings, ball bearings replace sliding friction with the rolling of balls, thereby reducing energy loss and minimizing wear. This design not only improves the operating efficiency of mechanical equipment, but also extends its service life, enabling it to play a role in different application scenarios such as high speed, heavy load, and precision equipment.
1.What is a Deep Groove Ball Bearing?
1.Deep groove ball bearings are rolling bearings with continuous deep groove raceways on the inner and outer rings. The raceway cross-section is approximately arc-shaped, forming precise point contact with the rolling element (steel ball). This structure enables it to not only withstand large radial loads, but also withstand axial loads or combined loads under certain conditions.
2.When using a larger radial clearance, deep groove ball bearings exhibit characteristics similar to angular contact ball bearings and have a certain angular contact capacity, so they can also be used in situations where bidirectional loads are required at the same time.
3.Deep groove ball bearings not only have standard structures, but also various variant designs, including those with dust covers, rubber seals, retaining grooves, large load types (with ball loading notches), double-row structures, etc., which can meet the actual application requirements of different installation spaces, sealing performance, and load requirements. It performs well in high speed, low noise, precision, life, and maintenance cycle, and is a truly “universal bearing product.”
2.Product Features
（1）Simple structure and easy to use
convenient for mass and standardized production, easy to install and maintain.
（2）Strong load-bearing capacity
mainly bear radial load, and can also bear a certain degree of axial load.
（3）Suitable for high-speed working conditions
small friction coefficient, high limit speed, suitable for high-speed rotation occasions.
（4）Has a certain self-aligning performance
can still work normally when the housing hole is slightly tilted (2′～10′), but the life is slightly affected.
（5）Various cage structures
small bearings mostly use stamped steel cages, and large bearings mostly use machined brass solid cages.
（6）Various clearance and tolerance grades are available
meet different speed, temperature, accuracy and clearance requirements (C2, CN, C3, C4, C5 grades).
3.Applications
Ball bearings are widely used in various industries due to their low friction, high speed, compact structure and durability. Major application areas include:
(1) Electric Motors and Power Equipment: Ball bearings are essential for both small household electric motors and large industrial generators, providing precision, stability and long service life during continuous operation.
(2) Automotive Industry: Ball bearings are located in engines, gearboxes, wheel hubs, steering mechanisms, air conditioning compressors and other parts, which can minimize friction losses, improve power transmission efficiency, and help improve the overall performance and durability of the vehicle.
(3) Manufacturing Equipment and Machine Tools: Precision ball bearings in spindles, gearboxes, linear motion systems and similar applications can achieve high processing accuracy, extend equipment life and ensure reliable production quality.
(4) Household Appliances: Ball bearings support rotating parts in washing machines, fans, air conditioners, vacuum cleaners, etc. They help reduce noise, improve efficiency and ensure long-term performance.
(5) Medical Equipment: High-precision, low-friction ball bearings are essential for medical equipment such as CT scanners, dental drills, artificial heart pumps and similar technologies, where accuracy, reliability and biocompatibility are essential.
(6) Office and consumer electronics: Micro ball bearings in computer cooling fans, printers and hard disk drives improve efficiency, reduce energy consumption and ensure quiet, smooth operation.
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Zhangzhou Dingsen Trading Co., Ltd.
