Application scheme of industrial fan bearings

The bearings in industrial fans operate at high speeds and relatively light radial loads. These bearings may also operate under extreme high or low temperature conditions, as well as in locations that are difficult to maintain. Fan airflow is often used for conveying materials. Over time, materials will accumulate on the impeller, causing imbalance and even reducing the normal operating time and service life of the fan.  

The challenges posed by these operating conditions have placed high performance demands on the configuration scheme of wind turbine bearings. To solve these problems, a series of bearing application solutions for industrial fans and HVAC systems need to bnd selfaligning ball bearings or selfe developed based on extensive onsite experience. These bearing application solutions can improve cost-effectiveness and achieve fault free operation.

There are no two identical application scenarios, which is an obvious concept, but it can guide everything we do as PPH bearing enterprises. It guides us to design a series of bearing products and improve corresponding supporting services. To meet the unique requirements of customers for bearings in application scenarios and specific conditions. We accomplish this by adopting the latest technology and accumulating comprehensive application knowledge and experience. Our goal as bearing personnel should be to enhance customer value and help customers achieve a more efficient profit process.  

The higher the fan speed, the more heat is generated by the bearings. If you want to achieve and maintain high speed operation, sometimes you may need to upgrade the lubrication method of your fan: you may have to upgrade to higher cost oil bath lubrication, or even more expensive circulating oil lubrication.

However, in some cases, the speed can be increased without changing the lubrication method. The selfaligning roller bearing system for industrial fans and hot air fans allows for higher speeds and can help you address these issues. Optimizing the combination of components without the need for expensive lubrication upgrades, the full shaft system solution can extend the lubrication interval, reduce energy consumption, and improve the reliability of fans lubricated with grease and oil.

Industrial fans typically operate at high speeds and light loads. High speed may cause excessive bearing temperature. In addition, the fan itself may also generate high process temperatures, which are then transmitted to the fan shaft. This may cause significant axial expansion of the shaft. The expansion of the suspension shaft may be significant, and the bearing is located on the opposite side of the impeller.   

The solution for wind turbine applications has always been to use self aligning ball bearings or self aligning roller bearings for both fixed and non fixed ends of the bearing system. That is to say, the non fixed end bearing must be able to freely move axially in the bearing seat hole, so once it gets stuck, there will be problems. Blocked bearings may cause an increase in load, temperature, and axial vibration on the bearings.

Nowadays, the domestically supplied self aligning bearing configurations include fixed ealigning ball bearings or self aligning roller bearings, as well as non fixed end CARB ring roller bearings. CARB is fixed on the shaft and axially fixed in the bearing seat. The axial expansion or contraction of the shaft is absorbed internally by the CARB bearing.