Today I will introduce a special rubber seal. The oil seal is a sealing element used to seal the oil of the rotating shaft in the mechanical equipment, and the cavity is basically static, so the oil seal is also called the rotating shaft lip seal.
The friction part of the machine where the oil seal is used is due to the oil entering during the operation of the machine. The oil seal is used to prevent the oil from leaking from the gap of the machine, and in addition to the oil, it is necessary to prevent the leakage of water and chemical liquid and the leakage of dust and sand from the outside. Intrusion, the sealing state of the oil seal is also used at this time. First, there is a static seal between the outer edge of the oil seal and the cavity, and at the same time, the reliable positioning of the outer edge of the oil seal between the cavities is ensured. The second is the sealing state between the oil seal lip and the shaft. When the shaft rotates, it is a dynamic seal, and when the shaft is stationary, it is a static seal. The comprehensive effect and interaction of various influencing factors have a great impact on the sealing performance and service life of the oil seal.
The main purpose of the oil seal
1. Used for sealing of engine crankshaft and camshaft
2. Sealing of transmission systems (such as gearboxes, hubs, axles, differentials) of cars, motorcycles and commercial vehicles
3. Sealing of transmission systems of agricultural machinery and construction machineries such as forklifts and excavators
4. Sealing of industrial gearboxes
5. Sealing of hydraulic components (pumps, motors)
6. Sealing of daily mechanical washing machine
7. Widely used in mechanical engineering and equipment processing industry
The main features of the oil seal
The outside of the oil seal is cylindrical to ensure the static sealing of the cavity, and the outer edge of the rubber with a metal skeleton is used; the outer edge of the exposed metal skeleton is mostly polished and plated with an anti-corrosion coating.
The spring-loaded sealing lip guarantees the sealing reliability of the dynamic and static sealing of the shaft. As a result of long-term development and research, the sealing lip structure of the oil seal has been improved to better performance, thereby improving the sealing reliability in a wider load range. The addition of a dust lip, or in special cases multiple lips, provides protection from external contamination and dust.
Cixi Changhe Xinqide Seals Factory is a wholesale rubber O-ring manufacturer and custom bulk rubber ring factory in China, providing custom rubber seals for sale, welcome to consult.