O.D. (outside diameter) surface The O.D. surface affixes the oil seal to the housing and prevents leakage , through the fitting area, of substances to be sealed, while excluding contaminants.
To ensure correct fit and proper protection against contaminants, the inside diameter of an oil seal must be slightly smaller than the shaft diameter.
④ Dimensional numbers Shaft number 45: The seal suits the shaft diameter of ϕ45 mm. Housing bore number 70: The seal suits the housing bore diameter of ϕ70 mm. Width number 8: The seal width is 8 mm. ⑤ Special shape code
In conclusion, oil seals play a critical role in high-pressure systems by preventing leaks and maintaining the integrity of the machinery. With proper design, materials, and maintenance, high-pressure oil seals can withstand the extreme pressures and harsh conditions commonly found in industrial settings. By investing in quality seals and regular maintenance, operators can ensure the reliability and efficiency of their high-pressure systems for years to come.
Thoroughly clean the sleeve at the back of the pulley, and look for any roughness on it where it touches the seal. If necessary, smooth it with fine wet-and-dry abrasive paper.
Another important factor to consider is the temperature range in which the gasket will be used. Natural rubber gaskets have a broad temperature range, but it is crucial to select a gasket material that can withstand the specific temperature extremes of your application without losing its sealing properties.