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Centrifugal fan is composed of casing, main shaft, impeller, bearing transmission mechanism and motor.
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Casing: made of steel plate, solid and reliable, can be divided into integral type and semi open type, which is convenient for maintenance.
Impeller: composed of blade, curved front disc and flat rear disc.
Rotor: static balance and dynamic balance shall be conducted to ensure stable rotation and good performance.
Transmission part: it is composed of main shaft, bearing box, rolling bearing and belt pulley (or coupling).
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