Adjustable Rhombic Top Screw External Spherical Ball Bearing

1. Basic Composition of the Product​

The adjustable diamond housing setscrew pillow block bearing is composed of several key components that work together. Each component has a clear function and jointly ensures the overall performance of the bearing. The specific information of the components is shown in the table below:

2. Working Principle​

The operation of the adjustable diamond housing setscrew pillow block bearing relies on the synergy of multiple principles. Firstly, the self-alignment principle: the spherical outer surface of the bearing's outer ring and the concave spherical surface of the diamond housing adopt a spherical contact fit. When there is an axial deviation of ≤3° between the shaft and the housing hole during equipment operation, the outer ring can rotate slightly in the concave spherical surface to automatically adjust the center position of the bearing, ensuring that the rolling elements bear force evenly and avoiding early wear caused by local stress concentration.​

Secondly, the adjustable installation principle: during installation, loosen the bolts that fix the mounting block on the diamond housing, and rotate the threaded rod to drive the internal thread bushing and the mounting block to slide in the slot. After adjusting the bearing to the appropriate position, tighten the bolts to fix it, so as to flexibly adapt to the installation benchmarks of different equipment.​

In terms of heavy-load bearing, the rigid strength of the integrally cast iron diamond housing is 40% higher than that of the traditional stamped housing, which can effectively bear external loads. The wide inner ring design increases the contact area with the shaft, and combined with the 120° angle setscrew locking structure, the connection between the bearing and the shaft is more firm, which can stably transmit large radial loads and meet the needs of medium to heavy-load working conditions.​

For models integrated with an automatic lubrication system, when the bearing rotates, the rolling elements drive the cage to rotate, triggering the extrusion block in the automatic lubrication system. The extrusion block pushes the telescopic rod to inject the lubricating oil in the lubricating oil storage device into the bearing as needed, forming a stable lubricating film on the contact surface between the rolling elements and the inner and outer rings, which can ensure continuous and stable operation even in high-temperature and high-speed environments.​

3. Application Fields​

Based on the characteristics of strong adaptability, high load-bearing capacity, stable operation and good protection performance of the adjustable diamond housing setscrew pillow block bearing, it has a wide range of applications in many industries and fields.​

In the heavy industry field, in metallurgical equipment of steel plants such as rolling mills and continuous casting machines, the bearing needs to withstand high temperatures (≤300℃) and heavy loads, while dealing with slight axial deviations during equipment operation. The self-alignment function and high-strength diamond housing of this bearing can perfectly adapt to such working conditions and ensure the continuous and stable operation of the equipment. For equipment such as vibrating screens and crushers in mines, the working environment is dusty and large radial loads need to be borne. Its double-lip rubber seal can effectively prevent dust intrusion, and the heavy-load bearing design can meet the high-intensity operation needs of the equipment.​

In the material conveying field, the roller parts of various conveyors are core rotating components. There are differences in the installation benchmarks of different conveyors. The adjustable installation structure of this bearing can flexibly adapt to the installation needs of different rollers, and at the same time stably support the operation of the rollers, reducing failures caused by installation deviations. It is widely used in scenarios such as port bulk material conveyors and factory production line material conveyors.​

In the precision manufacturing field, for the spindles of machine tools and the rotating shafts of automatic transmission devices, high requirements are placed on the rotational accuracy and operation stability of the bearings. The precise fit between the spherical outer surface of the bearing and the housing can reduce vibration during operation and ensure processing accuracy. At the same time, the adjustable installation design facilitates equipment assembly and commissioning, making it suitable for equipment such as CNC machine tools and automatic assembly lines.​

In the special equipment field, in the yaw system and pitch system of wind power equipment, the bearing needs to operate in an outdoor environment for a long time and face erosion such as sand, wind and moisture. Its sealing and protection design can resist external impurities, and the automatic lubrication system can reduce the maintenance frequency, ensuring the long-term and reliable operation of the equipment. For the wheel axle parts of kiln cars in kilns, which are in a high-temperature environment and need to bear the weight of the kiln car and materials, the high-temperature resistance and heavy-load bearing capacity of this bearing can meet the needs of such special working conditions.​

4. Summary of Product Advantages​

The adjustable diamond housing setscrew pillow block bearing has significant advantages in many aspects. Strong adaptability is one of its important characteristics. Through the two-dimensional adjustable structure and self-alignment function, it can flexibly adapt to the installation benchmarks of different equipment, effectively compensate for axial deviations, reduce installation difficulty and minimize the impact of installation errors on equipment operation.​

In terms of load-bearing capacity, the integrally cast iron diamond housing and wide inner ring design, combined with the setscrew locking system, greatly improve the rigidity and load-bearing capacity of the bearing. It can stably bear medium to heavy radial loads and adapt to various heavy-load working conditions.​

In terms of operation stability, the excellent sealing and protection design can prevent the intrusion of impurities, and the efficient lubrication system ensures sufficient internal lubrication, reducing friction and wear, prolonging the service life of the bearing, reducing equipment failure rates and ensuring long-term stable operation of the equipment.​

The maintenance convenience is also very prominent. The reasonable structural design makes the installation and disassembly operations simple, and the daily maintenance and inspection are convenient, which can reduce the equipment maintenance time and cost and improve the equipment operation efficiency.​

In addition, the product has obvious cost-effectiveness advantages. Compared with ordinary pillow block bearings, it has significant improvements in installation flexibility and load-bearing performance; compared with imported precision self-aligning bearings, it has better cost advantages and localized service support while ensuring performance, which can bring higher economic benefits to users.​

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