BD175-6A Double Row Angular Contact Ball Bearing For Excavator / Loader

In the operation system of construction machinery and heavy - duty equipment, the performance of bearings is directly related to the overall operation efficiency and service life of the equipment. As a key component specially designed for harsh working conditions, the BD175 - 6A bearing plays an important role in excavators, loaders and other heavy - duty machinery with its precise size specifications, unique structural design and excellent performance.​

1. Inner diameter: The inner diameter of 175mm is precisely calculated to perfectly match the shaft diameter specifications of specific parts of equipment such as excavators. This precise matching ensures a tight combination between the bearing and the shaft. When the equipment is running at high speed and under heavy load, it effectively avoids relative sliding, guarantees the stable transmission of power, and provides basic support for the efficient operation of the equipment.​

2. Outer diameter: The outer diameter of 230mm is designed not only to provide sufficient structural strength for the bearing to cope with various stresses under complex working conditions, but also to fit with the installation dimensions of relevant parts of the equipment. It ensures the compactness and coordination of the entire mechanical system, enabling all parts to work together and improving the overall operation efficiency of the equipment.​

3. Width: The width of 35mm is designed to take into account both the axial load - carrying capacity of the bearing and the space limitation of the equipment. In the limited installation space, it can not only effectively bear the axial force to prevent axial movement of the shaft during operation, but also not affect the normal installation and operation of other parts due to excessive size, achieving a balance between performance and space.​

The BD175 - 6A bearing adopts a double - row angular contact ball bearing structure, which endows it with many advantages. The layout of double - row rolling elements increases the bearing area of the bearing, enabling it to bear large radial loads and bidirectional axial loads at the same time, meeting the complex force requirements of equipment such as excavators during operation. At the same time, this structure has high rigidity, which can effectively reduce the deformation of the bearing during operation, ensure the rotation accuracy of the equipment, and improve the stability and accuracy of the operation.​

In addition, the inner and outer rings of the bearing adopt an integrated design, which enhances the overall structural strength and stability. When facing impact and vibration, it can maintain a good working state and prolong the service life. The raceway is designed with a special curvature, which can optimize the distribution of contact stress between the rolling elements and the raceway, reduce wear, and further improve the reliability of the bearing.​

1. Bearing material: The BD175 - 6A bearing is made of high - quality GCr15SiMn bearing steel, which has high hardness, wear resistance and fatigue resistance. After strict heat treatment process, the hardness of the bearing can reach HRC60 - 65, which can maintain good performance in long - term heavy - load and high - frequency operation, effectively resist wear and fatigue damage, and extend the service life of the bearing.​

2. Processing technology: The processing process of the bearing adopts high - precision manufacturing equipment and advanced process technology to ensure the dimensional accuracy and surface quality of each part. The processing accuracy of the raceway and rolling elements reaches a high level, which reduces friction and vibration during operation, lowers noise, and at the same time improves the rotation accuracy and operation stability of the bearing. In addition. the bearing surface has undergone special anti - rust treatment, which can effectively resist the erosion of harsh environments such as humidity and dust, and improve its adaptability.​

1. High load - carrying capacity: Thanks to the structural design of the double - row angular contact ball bearing and the selection of high - quality materials, the BD175 - 6A bearing has a strong load - carrying capacity. Its rated dynamic load and rated static load are at a high level, which can easily cope with the huge loads generated by equipment such as excavators during digging, handling and other operations, ensuring the stable operation of the equipment under heavy - load working conditions.​

2. Good high - speed performance: The high - precision processing and optimized structural design of the bearing enable it to maintain a low friction coefficient during high - speed operation, reducing energy loss. At the same time, good lubrication performance ensures the heat dissipation effect of the bearing at high speed, avoiding performance degradation due to excessive temperature, so that the equipment can remain stable and reliable during high - speed operation.​

3. Strong stability and reliability: In harsh working environments, the BD175 - 6A bearing shows strong stability and reliability. Its excellent sealing performance can effectively prevent dust, moisture and other impurities from entering the bearing, protect the internal structure from pollution and damage, and maintain a good lubrication state. Even in high temperature, dusty and violently vibrating working conditions, the bearing can maintain a stable operation state, reduce the probability of failures, and lower the maintenance cost of the equipment.​

The BD175 - 6A bearing is mainly used in key parts such as the slewing mechanism and travel motor of excavators. In the slewing mechanism, it can bear the radial and axial loads generated during slewing, ensure the stability and accuracy of the slewing action, and improve the operation efficiency of the excavator. In the travel motor, its high load - carrying capacity and good high - speed performance can meet the power transmission requirements when the equipment is moving, enabling the excavator to move flexibly on various complex terrains.​

In addition, the bearing can also be applied to corresponding parts of other heavy - duty construction machinery such as loaders and cranes, providing reliable guarantee for the stable operation of these equipment and playing an important role in engineering fields such as mines, construction and water conservancy.​

To sum up, with its precise dimensional parameters, unique structural design, high - quality material craftsmanship and excellent performance advantages, the BD175 - 6A bearing has become an indispensable key component in the field of heavy - duty construction machinery, providing solid support for the efficient and stable operation of the equipment.