140x225x68 23128CA Double Row Self Aligning Roller Bearing For Heavy Load

23128CA Spherical Roller Bearing: 140mm Bore, 225mm OD, 68mm Width, Heavy Load Resistant

I. Basic Overview​

The 23128CA spherical roller bearing plays an important role in the industrial mechanical transmission system and belongs to the type of double-row spherical roller bearings. Its model has a clear meaning: "231" is a specific bearing series identifier; "28" indicates the inner diameter size of 140mm calculated by (28×5); "CA" means that the bearing adopts a brass solid cage, and this structural design endows the bearing with unique performance and advantages.​

II. Dimensional Specifications​

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III. Structural Design​

1. Self-aligning Structure: The outer ring raceway is in a precise spherical shape with the center of the bearing as the center. The inner ring is provided with two raceways at a specific inclined angle to the bearing axis, matched with two rows of barrel-shaped rollers. This exquisite design enables the bearing to have strong self-aligning ability, which can effectively deal with the deflection deformation of the shaft during operation and the possible misalignment during installation. Generally speaking, the allowable aligning angle of the bearing is between 1° and 2.5°, which greatly reduces the risk of additional stress and wear caused by misalignment, ensuring that the bearing can run stably even under complex and harsh working conditions.​

2. Cage: A brass solid cage (CA type) is adopted. The brass material endows the cage with good mechanical strength and excellent wear resistance. In the working environment with multiple rolling elements and limited space, this kind of cage can stably and efficiently carry the rollers, ensuring that the rollers are evenly distributed and move smoothly during operation, thus significantly improving the overall operational stability and reliability of the bearing. In addition, the cage also has the characteristic of low noise, creating a relatively quiet environment for equipment operation.​

3. Rolling Elements: The barrel-shaped rollers are in linear contact with the inner and outer ring raceways. This contact mode greatly improves the bearing's capacity to bear radial loads. At the same time, the bearing can also bear a certain degree of bidirectional axial loads, enabling it to adapt to various complex stress conditions.​

IV. Performance Advantages​

1. High Load-bearing Capacity: Relying on scientific and reasonable structural design and the selection of high-quality materials, the 23128CA spherical roller bearing shows excellent load-bearing capacity and can bear large radial loads. When facing the high-intensity pressure and impact force generated during the operation of heavy-duty mechanical equipment, the bearing can maintain excellent stability and durability, which can fully meet the strict requirements for high-load bearing in industries such as mining, metallurgy and papermaking.​

2. Good Wear Resistance and Fatigue Resistance: High-quality bearing steel is selected for manufacturing the bearing, and through rigorous heat treatment processes, the bearing surface has the dual advantages of high hardness and good toughness. This characteristic enables the bearing to operate stably for a long time in harsh working environments such as high temperature, dusty and high humidity, effectively resisting wear and fatigue damage, significantly prolonging the service life of the bearing, and thus reducing the maintenance cost of the equipment.​

3. Stable Operation with Low Noise: The self-aligning function and the well-designed cooperation between rollers and raceways enable the bearing to effectively reduce the generation of vibration and noise during operation. This not only improves the stability of equipment operation, creates a more comfortable working environment for operators, but also helps to improve the operation accuracy of the equipment, ensuring the stability of the production process and product quality.​

V. Application Fields​

1. Mining Machinery: It is widely used in mining equipment such as crushers, ball mills and vibrating screens. The mining operation environment is extremely harsh, and the equipment needs to bear huge impact loads and strong vibrations during operation. The high load-bearing capacity and self-aligning function of the 23128CA bearing can strongly ensure the stable operation of the equipment, reduce the frequency of failures, and greatly improve production efficiency.​

2. Metallurgical Equipment: Key components of metallurgical equipment such as gearboxes of rolling mills and continuous casters often adopt this type of bearing. During metallurgical production, equipment faces complex working conditions such as high temperature, high load and frequent start-stop. The 23128CA spherical roller bearing, with its excellent performance, can reliably support the operation of the equipment, fully meeting the strict requirements of the metallurgical industry for equipment stability and reliability.​

3. Papermaking Machinery: Various transmission components of paper machines, such as drying cylinders and press rolls, need to bear large radial loads during operation, and due to the structural characteristics of the equipment, the shaft is prone to deflection and misalignment. The 23128CA bearing can well adapt to these working conditions, ensure the stable operation of the paper machine, and strongly guarantee the continuity and quality stability of paper production.​

4. Power Equipment: The rotating shafts of power equipment such as hydraulic generators, wind turbines and large motors may produce deflection and vibration due to their own weight, electromagnetic force and other factors during operation. The self-aligning function and high load-bearing capacity of the 23128CA spherical roller bearing can effectively compensate for the deformation of the shaft, ensure the stable operation of the motor, and improve power generation efficiency and equipment reliability.