Waterproof fan manufacturers [advantage] waterproof fan manufacturers waterproof fan manufacturers http://www.szdosense.com/products-detail.asp?cpid=88 1, high speed and acceleration - dn value in conditions over three million Under the operation, and the skid, wear and heat can be reduced; 2,12V DC fan long life, resistance to wear - full ceramic bearing fatigue life expected 10-50 times longer than steel bearings, hybrid ceramic bearings, life expectancy about 3-5 times more than the life of the bearing steel is high; 3, the required minimal lubrication - a low friction coefficient of the ceramic material, ceramic bearings lubricated by oil, the lubricating oil in the case of thinning or depleted oil lubrication is still lower than the bearing capacity of the steel used in traditional lubricants; 4, abrasion - the ceramic material is an inert material, it is more resistant to corrosion and wear; 5, rigidity - by the elastic modulus of the ceramic material is high, which rigid than ordinary steel bearings Large 15-20%; 6, high temperature - Full ceramic bearings can operate in temperatures above 500 ℃; 7, torque low - about one-third decrease in accordance with the structure of the ceramic bearing torque; 8, non-magnetic non-conductive - ceramic bearings can not be magnetic, electrical damage. SHENZHEN woo Electronics Co., Ltd. for your friendship recommend: Mini AC DC fan cooling fan manufacturers http://www.szdosense.com/products-detail.asp?cpid=125 http://www.szdosense.com/products -detail.asp? cpid = 71