"Blower Fan" Rotor: by the shaft, impeller, bearings, timing gears, couplings, bushings and other components. Impeller: selection of involute surface, high capacity utilization. Bearings: Close coupling end selected as the positioning end 3000 double row spherical roller bearings. Near the end as a free end of the gear selection 32000 single row radial cylindrical roller bearings to accommodate axial displacement of the rotor thermal distention. Synchronous gear: the composition of the ring gear and the hub, easy to adjust the impeller clearance. "Blower Fan" of the body: the cabinet and the left and right wall components. Left and right wall and bearing the seal mounted in the left and right panels and the like can be inter-operable. Base: the small wind turbine equipped with common base, with a large fan only fan base for easy installation. "Blower Fan" Lubrication: gears are submerged, splash lubricated bearings. Lubricating effect, safe and reliable.