The driving mode of axial flow fan is commonly used in three forms: motor direct connection, triangle belt driving and coupling linkage.

Type A: direct motor connection. The fan impeller is directly mounted on the motor shaft. Generally, small numbers are used.

Type B: wheel drive. The pulley is mounted between two bearings.

Type C: wheel drive. The pulley cantilever is installed at one end of the main shaft, and the impeller cantilever is installed at the other end of the main shaft.

Type D: coupling linkage. Impeller cantilever is installed on the main shaft (air duct structure).

Type E: coupling linkage. The impeller cantilever is mounted on the main shaft (no air duct structure).