Hydraulic cooling fan is combined with double ball bearing structure and oil bearing fitting with the characteristics of the lubricating oil to extend the life of a, resulting from the optimal rust radiator cooling fan structure, it adopts label surface which is at the bottom of the sealing structure, less volatile, protect good oil properties, the characteristics of high temperature capability is strong, long life name is slightly longer than oil bearing hydraulic cooling fan for retaining ring seal in the inside, not easy to remove the buckle, so not convenient to take out the radiator cooling fan blades for repair, if process production, have defects, repair is very troublesome. Second, hydraulic cooling fan because both sides can bearing oil, oil amount can store more, life longer, compared with the oil bearing also need to add gasket, etc. , process is more complex, so the cost will be relatively a bit higher for orders a big radiator cooling fan, hydraulic cooling fan and a characteristic, is the high degree of automation equipment production, customized special cooling fan assembly equipment, can reduce the artificial grass. Wenling city chi automotive air conditioning technology co. , LTD was founded in 2002 in wen ling, is a focus on research and development, production, sales, radiator cooling fan of high-tech enterprises. Produced dc cooling fans, ac cooling fan, blower, waterproof/dustproof cooling fan, EC conversion and the cooling fan, radiator dc cooling fan, car radiator cooling fan, mute radiator cooling fan, radiator cooling fan, turbo cooling fan, dc dc cooling fan, centrifugal fan, blower, air blower factory, new energy dc cooling fan, brushless motor, etc. , has been widely used in: communications equipment, UPS power supply, medical equipment, electric welding machine, industrial control equipment, household electrical appliances, air purification industry, automobile industry, projectors, beauty equipment, sports equipment, and other areas of the industry.