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Applications and Requirements of Bearing


Bearings can be seen everywhere in our lives and work, such as household appliances, garden tools, and transportation. For different application scenarios, different kinds of bearings play different roles. This article introduces bearing applications in detail by field classification.


Ⅰ. Application of bearings in vehicles


Commonly used bearings in vehicles represented by motorcycles and automobiles are starter motor bearings, crankshaft bearings, gearbox bearings, and wheel hub bearings. According to the operating conditions of the starter motor, specific requirements are put forward for the bearing's ability to withstand intermittent impact loads, and at the same time, it must have good dust-proof performance and select a reasonable internal bearing clearance. The wheel hub bearing has a high speed and a large force, which requires the use of suitable grease, and the internal design of the clearance is relatively large, which puts forward higher requirements for the production of raw materials. The force and working conditions of automotive ball bearings are more complicated than those of motorcycles. For example, the bearing of the automobile condensing fan motor should take into account the continuous working condition of the motor under high-temperature conditions and so on.


Ⅱ. Application of bearings in garden tools


In garden tools represented by lawnmowers, the gearbox places extremely high demands on the sealing of the bearings. Neither the grease in the box should seep into the bearings nor the grease should leak. Due to the high pressure in the gearbox, the bearings should have a special pressure relief function.


Ⅲ. Application of bearings in office automation tools


In-office automation tools, the office environment requires bearing products with good features such as low noise, high-temperature resistance, and low starting torque. The copier also puts forward higher requirements on the electrical conductivity of the bearing. Because these bearings are usually miniature bearings, and most of them are thin-walled series, and some require flanged design, higher requirements are placed on the manufacturing process and equipment accuracy.


Ⅳ. Application of bearings in medical equipment


In medical equipment, low rotational torque, low noise, and good flexibility are the basic requirements for bearings. The safety characteristics of bearing materials, the safety characteristics of bearing grease, the anti-rust performance of the bearing, and the service life of the bearing are all under consideration.


Ⅴ. Application of bearings in other industries


In addition to the above industries, the bearings used in industrial motors are usually required to withstand heavy loads, and the bearing environment is relatively harsh. The bearings in the motors of household appliances such as air conditioners and washing machines have very strict requirements for low noise and high rotation accuracy.