The centrifugal fan is composed of a casing, a main shaft, an impeller, a bearing transmission mechanism and a motor.
Case: It is made of steel plate and is sturdy and reliable. It can be divided into integral type and semi-open type. The semi-open type is convenient for maintenance.
Impeller: It is composed of blades, curved front disc and flat back disc.
Rotor: static and dynamic balance should be done to ensure smooth rotation and good performance.
Transmission part: It is composed of main shaft, bearing box, rolling bearing and belt pulley (or coupling).
