Oil seals are available in an immense range of sizes, for shafts from a few millimetres to several metres. Once the shaft diameter, groove diameter (housing diameter) and groove width are known, selecting an appropriate oil seal is a simple task. An oil seal or its product description is usually associated with three dimensions, for example 6x15x4. These refer to the sizes of the hardware for which the oil seal is designed. In this example, this oil seal is suitable for: 6-mm shaft diameter x 15-mm groove diameter x 4-mm minimum groove width.
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China is a significant hub for the wholesale and manufacturing of spark plugs, catering to both domestic and international markets. The country's robust manufacturing infrastructure and expertise in automotive components have positioned it as a leading producer and supplier of spark plugs. Chinese spark plug manufacturers offer a wide range of products, including standard, performance, and specialty spark plugs, catering to diverse customer needs and vehicle applications.