BA222-1SA Double Row Spherical Roller Bearing For Industrial / Heavy Machinery

BA222-1SA Double-Row Spherical Roller Bearing for Industrial & Heavy Machinery

In the operation system of mechanical equipment, bearings, as key components, directly affect the operational stability, service life, and overall efficiency of the equipment. The BA222-1SA bearing, with its elaborate design, high-quality materials, and excellent manufacturing processes, plays an indispensable role in numerous industrial fields and mechanical equipment, providing a solid guarantee for the reliable operation of various types of equipment.

I. Precisely Adapted Dimensional Specifications

1. Inner Diameter

The 222mm inner diameter design fully considers the size specifications of common transmission shafts and the requirements of various mechanical power transmission. Whether in the connection of high-power motor output shafts of large industrial machinery or the integration of transmission systems of medium-sized equipment, this inner diameter size can achieve precise cooperation with the transmission shaft. It ensures the tightness and stability of installation, effectively avoids problems such as shaking and eccentricity caused by mismatched inner diameters, guarantees the efficient transmission of torque during power transmission, reduces energy loss, and maintains the smooth operation of the equipment.

2. Outer Diameter

The 273mm outer diameter achieves a delicate balance between load-carrying capacity and space layout. In industrial production, many mechanical equipment have high requirements for the radial load-carrying capacity of bearings. A larger outer diameter can increase the contact area between rolling elements and raceways, thereby improving the radial load-carrying capacity of the bearing. This enables it to withstand large loads from different directions, meeting the usage requirements of heavy machinery, mining equipment, and other equipment under harsh working conditions. At the same time, this outer diameter size is easy to adapt to various bearing housings and shells in common mechanical structure designs. It will not affect the compactness and space utilization of the overall equipment due to being too large or too small, realizing a good integration of performance and space design.

3. Width

The 26mm width design is based on a comprehensive consideration of the optimization of the internal structure of the bearing and the external installation environment. From the perspective of the internal structure, an appropriate width can ensure that the rolling elements have sufficient activity space in the raceway. At the same time, it ensures that the cage can effectively guide and separate the rolling elements, keeping them evenly distributed during high-speed rotation, avoiding mutual collision and interference, and improving the running accuracy and stability of the bearing. In terms of external installation, this width size is compatible with the installation space of many mechanical equipment. Whether in horizontally installed transmission devices or vertically arranged lifting equipment, it can be installed smoothly and can stably play its supporting and transmission role under different installation angles and working conditions.

II. Innovative and Efficient Structural Type

The BA222-1SA bearing adopts a unique double-row spherical roller structure, which integrates advanced mechanical design concepts and has excellent performance. The design of double-row rolling elements significantly improves the load-carrying capacity of the bearing, enabling it to bear large radial loads and a certain degree of axial loads at the same time. When facing complex stress conditions, such as impact loads generated during the start-up and braking of industrial machinery, and uneven forces caused by vibration, eccentric loads, etc., during equipment operation, this structure can evenly distribute the load to each rolling element through the adaptive adjustment of spherical rollers. It effectively reduces the stress concentration on a single rolling element, reduces the risk of wear and fatigue damage, thus greatly prolonging the service life of the bearing.

In addition, the special shape of the spherical roller gives the bearing self-aligning function. When the shafting of mechanical equipment has a certain degree of misalignment, the BA222-1SA bearing can automatically adjust the contact position between the rolling elements and the raceway through its self-aligning effect, ensuring that the bearing is always in good working condition. It avoids problems such as abnormal wear, increased vibration, and equipment failure caused by shafting misalignment, improves the reliability and stability of mechanical equipment operation, and reduces equipment maintenance costs and downtime.

III. High-Quality and Reliable Material Technology

1. Product Materials

The inner ring, outer ring, and rolling elements of the BA222-1SA bearing are all made of high-quality high-carbon chromium bearing steel, such as GCr15 material. This kind of steel has undergone strict vacuum degassing treatment, has extremely high purity, effectively reduces the existence of internal impurities and pores, and greatly improves the strength and toughness of the material. High-carbon chromium bearing steel itself has high hardness, good wear resistance, and excellent rolling fatigue strength. It can maintain stable dimensional accuracy and surface quality under long-term high-load operation conditions, effectively resist failure forms such as wear and pitting, and ensure the reliable operation of the bearing.

The cage is made of high-strength brass material. Brass has good machinability and wear resistance, and can provide stable and reliable guidance and separation for rolling elements in a high-speed rotating environment. At the same time, brass material also has a certain self-lubricating property. During the operation of the bearing, it can reduce friction and wear with the rolling elements, reduce energy loss, improve the operation efficiency of the bearing, and to a certain extent, make up for possible problems when lubrication is insufficient, enhancing the adaptability of the bearing under complex working conditions.

2. Processing Technology

In the manufacturing process, the BA222-1SA bearing uses a series of advanced and precise processing technologies. Starting from the forging of raw materials, high-precision forging dies and advanced forging equipment are used to ensure the blank shape and dimensional accuracy of the inner ring, outer ring, and rolling elements, laying a good foundation for subsequent processing procedures. The forged blanks undergo spheroidizing annealing treatment to homogenize the internal structure of the steel, obtain ideal hardness and cutting performance, and facilitate subsequent turning, grinding, and other processing operations.

In the turning processing stage, high-precision CNC lathes are used to perform precise size forming processing on the inner and outer rings of the bearing, ensuring that key dimensional accuracies such as surface roughness, roundness, and cylindricity of each surface reach the micron level. The grinding process is a key link to ensure the quality of the bearing. Through advanced grinding equipment and high-precision grinding wheels, the raceways, inner holes, and outer diameters of the bearing are finely ground. This makes the surface roughness of the raceway extremely low, and the fit clearance between the rolling elements and the raceway is precisely controllable, which greatly improves the running accuracy and stability of the bearing.

In the assembly process of the bearing, standardized operating procedures are strictly followed, and professional assembly equipment is used to ensure that the rolling elements are evenly and accurately installed in the raceway, and the cage is installed firmly and in a precise position. After assembly, each set of bearings undergoes a comprehensive quality inspection, including dimensional accuracy inspection, rotation flexibility inspection, clearance measurement, and load-carrying capacity test. Only bearings that pass all inspection standards can be sold on the market, ensuring the high quality and reliability of the products from the source.

IV. Outstanding Performance Advantages

1. High Load-Carrying Capacity

With its double-row spherical roller structure and high-quality material selection, the BA222-1SA bearing exhibits excellent high load-carrying capacity. In the field of heavy machinery and equipment, such as large excavators and cranes, the equipment will bear huge gravity and impact force during operation. The BA222-1SA bearing can stably support the key components of the equipment, bear radial and axial loads of up to several tons or even dozens of tons, ensuring that the equipment can still run smoothly under heavy-load working conditions without deformation, damage, etc., providing a solid guarantee for the efficient operation of heavy machinery.

2. Good High-Speed Performance

In some mechanical equipment with high requirements for rotational speed, such as high-speed motors and spindles of precision machine tools, the BA222-1SA bearing also performs well. Its precisely machined raceways and rolling elements, combined with high-precision assembly technology, enable the bearing to effectively reduce friction and vibration during high-speed rotation and maintain good running accuracy. Even at rotational speeds as high as several thousand or even tens of thousands of revolutions per minute, the bearing can still run stably without performance degradation due to centrifugal force and heat generation caused by high speed, effectively improving the operating efficiency and processing accuracy of the equipment.

3. Long Service Life

Combining high-quality materials, advanced processing technology, and reasonable structural design, the BA222-1SA bearing has excellent long service life characteristics. Under normal use and maintenance conditions, its service life is significantly longer than that of ordinary bearings. In industrial production, many equipment need to run continuously for a long time. Frequent replacement of bearings will not only increase equipment maintenance costs but also lead to production interruptions, affecting the economic benefits of enterprises. The long service life characteristic of the BA222-1SA bearing can meet the strict requirements of these equipment for bearing reliability and durability, reduce the frequency of equipment maintenance, lower enterprise operating costs, and improve the continuity and stability of production.

V. Wide and Diverse Application Scenarios

1. Industrial Machinery Field

In industrial production, the BA222-1SA bearing is widely used in various large mechanical equipment. For example, in mining equipment, crushers, ball mills, and other equipment will generate huge impact loads and vibrations during operation. With its high load-carrying capacity and good impact resistance, the BA222-1SA bearing can stably support the rotating parts of the equipment, ensuring that the equipment can run continuously and efficiently in harsh working environments. In rolling mills in the metallurgical industry, bearings need to bear high-speed rotation and huge rolling force. The high-speed performance and high load-carrying capacity of the BA222-1SA bearing make it an ideal choice for the transmission system of rolling mills, which can ensure the stability of the rolling process and product quality.

2. Power Equipment Field

In the power industry, the BA222-1SA bearing is used in key equipment such as generators and motors. When the generator is running, the rotor needs to rotate at high speed and stably. The good high-speed performance and long service life of the BA222-1SA bearing can ensure that the rotor of the generator always maintains precise running accuracy during long-term operation, reducing shutdown accidents caused by bearing failures and ensuring the stability and reliability of power supply. In wind power generation equipment, the main shaft bearing of the wind turbine needs to bear huge axial and radial loads as well as complex alternating stresses. The double-row spherical roller structure and high load-carrying capacity of the BA222-1SA bearing enable it to adapt to the stress requirements of the wind turbine under different working conditions, prolong the service life of the wind turbine, and reduce maintenance costs.

3. Other Fields

In addition to the industrial machinery and power equipment fields, the BA222-1SA bearing is also widely used in many other fields such as transportation and agricultural machinery. In the propulsion system of large ships, bearings need to bear huge torque and axial thrust. The BA222-1SA bearing can meet the requirements of the ship propulsion system for high reliability and high load-carrying capacity, ensuring the safe navigation of the ship. In agricultural machinery such as tractors and combine harvesters, the BA222-1SA bearing can be used to support transmission components, adapting to the characteristics of complex agricultural operation environments and variable loads, ensuring that agricultural machinery can work stably and efficiently in the field, and providing reliable support for agricultural production.

To sum up, with its precisely adapted dimensional specifications, innovative and efficient structural type, high-quality and reliable material technology, outstanding performance advantages, and wide and diverse application scenarios, the BA222-1SA bearing has become an ideal choice for many mechanical equipment to improve performance and extend service life. It injects strong impetus into the stable operation of equipment in industrial production, power supply, and other industries, promotes the technological progress and development of various industries, occupies an important position in the field of mechanical equipment manufacturing, and creates significant economic benefits and value for users.