Construction of DC centrifugal fan:

A centrifugal fan consists of a casing, a main shaft, an impeller, a bearing transmission mechanism, and a motor.

Chassis: Made of steel plate, it is sturdy and reliable, and can be divided into integral and semi open types. The semi open type is easy to maintain.

Impeller: composed of blades, curved front plate, and flat rear plate.

Rotor: It should undergo static and dynamic balancing to ensure smooth rotation and good performance.

Transmission part: It consists of a main shaft, bearing housing, rolling bearings, and pulleys (or couplings).