Four-point basic operation analysis of oil seal installation_Rubber seal_Rubber seal manufacturer

Four-point basic operation analysis of oil seal installation 1. Before installing the oil seal, do not tear the wrapping paper too early to prevent debris from adhering to the surface of the oil seal and bringing it into work. 2. Before installation, the oil seal should be smeared with an appropriate amount of lithium-based ester added with molybdenum disulfide between the lips to prevent dry grinding of the lips when the shaft starts instantaneously and affect the interference of the lips. As soon as possible, assemble. If the oil seal seat where the oil seal is installed is not installed immediately, it is recommended to cover it with a cloth to prevent foreign matter from adhering to the oil seal. Hands or tools coated with lithium grease must be clean. 3. The oil seal should be installed flat and should not be inclined. It is recommended to use hydraulic equipment or socket tools for installation. The pressure should not be too high, the speed should be even and slow. 4. For the machine with J-type frameless oil seal installed this time, mark it to facilitate tracking, and pay attention to the whole process of oil seal selection. The oil seal type and material should be selected according to the rubber seal and working conditions. The working conditions mainly consider the use pressure, working line speed, and working temperature range. When selecting the material of the oil seal, the compatibility of the material to the working medium, the adaptability to the working temperature range and the ability of the lip to follow the rotating shaft at high speed must be considered. Generally, when the oil seal is working, the temperature of its lip is 20~50℃ higher than the temperature of the working medium, so it should be paid attention to when selecting the oil seal material. Under the condition of the same diameter, J-type frameless oil seals made of different materials have different abilities to adapt to the rotational speed of the shaft surface. The operating pressure of ordinary oil seals generally does not exceed 0.05MPa. When the working pressure exceeds this value, a pressure-resistant oil seal should be selected. The working range of the oil seal is related to the material used for the oil seal: -40~120℃ when the material is nitrile rubber seals (NBR), -30~180℃ for acrylic rubber seals (ACM), and 25~300℃ for fluorine rubber (FPM). seals are precision components. Improper assembly and storage will affect performance. Oil seals should be stored to prevent dust, rust and deformation. Frameless oil seals cannot be exposed to direct sunlight, let alone squeezed. The oil seal installed on the shaft should prevent the shaft and the oil seal seat groove from rusting. When installing and removing the oil seal, pay attention to the following matters: (1) When installing the oil seal, apply oil or lubricating oil, and round the shaft end and shoulder. (2) When installing the oil seal, make sure that the lip end faces the side of the oil to be sealed, and avoid reverse assembly. (3) When the oil package is inserted into the seat hole, it should be pushed in with a special tool to prevent position deviation. (4) Various measures should be taken to prevent damage to the lip at the threads, keyways, splines, etc. where the oil seal lip passes, and special tools should be used to assemble it. Previous: seals are used in bulldozers to make their performance greatly...
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