A kind of auto water pump shaft bearings with the method of making the three lip seals

Auto water pump shaft bearing is a bearing, cage material usually choose reinforced nylon 66, materials commonly used nitrile butadiene rubber sealing ring, when the demand is higher, also can choose fluorine rubber seal, the existing water pump shaft bearing with three lip seals, sealing effect than the existing double lip seal structure has greatly improved, but there are also many disadvantages: because the car engine water pump with shaft bearings for long life and high reliability, the general automobile engine water pump water seal will produce leakage and leakage, double lip seal of extremely small amount of water and water vapor has good sealing effect, but the lower reliability of long time work in this environment, low life expectancy, the existing three lip seal, though has a great improvement on the basis of the original, but when the sealing lip have water leakage, the sealing lip waterproof performance is poor, so need to design a new kind of sealing structure to solve the above problems. The utility model is to solve the above problem and improve. Technical implementation elements: the purpose of the utility model is to provide a waterproof performance and to improve the effect of a kind of auto water pump shaft bearing with three lip seals. The utility model to solve the problem of its technology adopted by the technical scheme is: a car water pump shaft bearing with three lip seals, including double lip seal and dumped water ring, described to jilt water ring is located in the side and bottom of double lip seal, described in the double lip seals have seal frame is installed inside, lips have on sealing lip seal on one side of the setting, the lower end of the double lip seal set lower sealing lip; Described in the sealing lip and the lower sealing lip are installed on the double lip seal; Described in the sealing lip is located in in the former part of the double lip seal. Described under the sealing lip is located in the mouth under the seal of the front, which dumped water ring set in the sealing lip and the lower sealing lip; Described in the seal skeleton bottom bend; Seal skeleton described further, bending the bottom part of the Mosaic in the upper end of the sealing lip; Further, described on the sealing lip curling up; Among them, described the lower end of the seal skeleton bending to the side of the dumped water ring; Described in the sealing lip and the lower sealing lip by interference fit nested inside of water ring in a sling.