Customizable Excavator Bearings BA180-4BWSA Angular Contact Ball Bearing Single

Product Specification

BA180-4BWSA Angular Contact Ball Bearing for Excavators & Heavy Machinery

In the dynamic realm of construction machinery and heavy - duty equipment, bearings stand as linchpins, significantly influencing the operational efficiency and durability of these machines. The BA180 - 4BWSA bearing, meticulously engineered to endure the harshest working conditions, has emerged as a crucial component in excavators, loaders, and other heavy - duty machinery. Its precision - crafted dimensions, innovative structural design, and outstanding performance characteristics make it a preferred choice in the industry.​

I. Precise Dimensional Specifications​

1. Inner Diameter: With an inner diameter of 180mm, the BA180 - 4BWSA bearing is designed to achieve a perfect fit with the shaft diameters of specific components in machinery like excavators. This precise match ensures a secure connection between the bearing and the shaft. During high - speed operation and under substantial loads, it effectively prevents relative slippage, guaranteeing the stable transmission of power. This, in turn, provides a solid foundation for the efficient operation of the equipment.​

2. Outer Diameter: The outer diameter of 250mm is not only engineered to endow the bearing with sufficient structural strength to withstand the complex stresses encountered in diverse working conditions but also to be compatible with the installation dimensions of related components in the equipment. This compatibility ensures the compactness and harmonious operation of the entire mechanical system. All components can work in unison, thereby enhancing the overall operational efficiency of the equipment.​

3. Width: The width of 33mm strikes a balance between the bearing's axial load - bearing capacity and the spatial constraints of the equipment. In the limited installation space, it can effectively bear axial forces, preventing the shaft from experiencing axial displacement during operation. At the same time, it does not impede the normal installation and operation of other components due to excessive size, achieving an optimal equilibrium between performance and space utilization.​

II. Innovative Structural Design​

The BA180 - 4BWSA bearing features a single - row angular contact ball bearing structure, which confers numerous advantages. The arrangement of the angular contact balls enables the bearing to proficiently handle both significant radial loads and substantial axial loads simultaneously. This is particularly crucial for equipment such as excavators, which are subjected to complex forces during operation. The design of the contact angle (usually around 40 degrees) enhances the bearing's ability to withstand axial forces, making it highly suitable for applications where there are substantial axial thrusts.​

The inner and outer rings of the bearing are designed with enhanced rigidity. This not only effectively reduces deformation during operation but also ensures the high - precision rotation of the equipment. The optimized curvature of the raceway further improves the distribution of contact stress between the balls and the raceway, minimizing wear and tear and significantly extending the bearing's service life. Additionally, the bearing can be equipped with different types of cages, such as steel cages for high - strength applications or brass cages for better self - lubricating properties, depending on the specific requirements of the operating environment.​

III. Superior Materials and Advanced Manufacturing Processes​

1. Bearing Material: Constructed from high - quality GCr15 chrome steel, the BA180 - 4BWSA bearing exhibits remarkable hardness, wear resistance, and fatigue resistance. After undergoing a rigorous heat - treatment process, the hardness of the bearing can reach HRC60 - 65. This high hardness enables the bearing to endure long - term heavy - load and high - frequency operation with minimal wear. The excellent fatigue resistance ensures that the bearing can maintain its structural integrity and mechanical properties under repeated loading, thereby extending its service life significantly.​

2. Processing Technology: The manufacturing process of the BA180 - 4BWSA bearing employs state - of - the - art high - precision manufacturing equipment and advanced technological processes. This ensures the dimensional accuracy and surface quality of each component are of the highest standard. The raceway and balls are machined to an extremely high precision, reducing friction and vibration during operation. This not only lowers noise levels but also improves the rotation accuracy and operational stability of the bearing. Furthermore, the bearing surface is treated with a special anti - rust coating, enhancing its resistance to corrosion in harsh environments such as those with high humidity and dust.​

IV. Exceptional Performance Attributes​

1. High Load - Carrying Capacity: Thanks to its unique angular contact ball bearing structure and the use of premium materials, the BA180 - 4BWSA bearing boasts a formidable load - carrying capacity. Its rated dynamic load and rated static load are both at an impressive level. It can effortlessly handle the massive loads generated during the digging, loading, and transportation operations of equipment like excavators. This high load - carrying capacity ensures the stable operation of the equipment even under the most demanding heavy - load working conditions.​

2. Good High - Speed Performance: The high - precision machining and optimized structural design of the bearing allow it to maintain a low friction coefficient during high - speed rotation. This results in reduced energy consumption. Additionally, the bearing is designed with effective lubrication channels and heat - dissipation mechanisms. These features ensure efficient heat dissipation during high - speed operation, preventing performance degradation due to overheating. As a result, the equipment can operate stably and reliably at high speeds.​

3. Robust Stability and Reliability: In harsh working environments, the BA180 - 4BWSA bearing demonstrates outstanding stability and reliability. Its excellent sealing design effectively prevents dust, moisture, and other contaminants from infiltrating the bearing interior. This protects the internal structure from damage and maintains optimal lubrication conditions. Even in extreme conditions such as high temperatures, dusty atmospheres, and intense vibrations, the bearing can maintain a stable operating state. This significantly reduces the likelihood of equipment failures and lowers maintenance costs.​

V. Diverse Application Scenarios​

1. Excavator Slewing Mechanism: In the slewing mechanism of excavators, the BA180 - 4BWSA bearing plays a pivotal role. It is responsible for bearing the radial and axial loads generated during the slewing motion. By ensuring the smooth and accurate slewing of the excavator's upper structure, it significantly improves the efficiency of the digging operation. The bearing's high precision and load - carrying capacity enable the excavator to position the bucket precisely, enhancing the accuracy of material handling and reducing operational errors.​

2. Travel Motor of Construction Machinery: In the travel motors of various construction machinery, including excavators and loaders, the BA180 - 4BWSA bearing is also widely applied. Its ability to handle high - speed rotation and heavy loads makes it ideal for transmitting power during the movement of the equipment. Whether traversing rough terrains or operating on flat surfaces, the bearing ensures the smooth and stable movement of the machinery, providing reliable mobility support for construction operations.​

3. Other Heavy - Duty Machinery Applications: Beyond excavators and loaders, the BA180 - 4BWSA bearing finds applications in other heavy - duty machinery such as cranes and bulldozers. In cranes, it helps in the smooth rotation of the boom, enabling precise lifting and placement of heavy loads. In bulldozers, it contributes to the efficient operation of the transmission system, ensuring the reliable transfer of power to the tracks.​

In conclusion, the BA180 - 4BWSA bearing, with its precise dimensional parameters, innovative structural design, top - notch material quality, exceptional performance, and wide range of applications, has firmly established itself as an essential component in the heavy - duty construction machinery industry. It serves as a reliable guarantee for the efficient and stable operation of construction equipment, driving the progress of construction projects around the world.