<Seal selection example>
Based on the above flowcharts, the oil seal type that meets the requirements shown in Table 3 would be the type code MHSA or HMSA shown in Table 4.
Table 2 a): Common types of oil seals (with spring)
Several variables, including maximum temperatures, required lubricants, available space, and more, may influence your choice of bearing seal. Each factor can affect the type of bearing best for your application, the amount of material required, and other factors. Although the choice of seals is crucial to the effectiveness of your bearings, you don’t have to make that choice alone. Our experts at NBC bearings can collaborate with you to identify the bearings and bearing seals that provide the best, most affordable solution for your application, environment, and finished product.
Areas of application of this rubber are suggested by its outstanding temperature resistance (-55 °C to +200 °C), although this must not be applied to hot water or steam. Although silicone rubber almost matches NBR in oil resistance, it does not match the latter's physical and mechanical properties.
The Oil Seal 20/34/7 is designed with high-quality materials that ensure long-lasting performance and reliability. The seal consists of a rubber outer casing and a metal inner core, which work together to create a tight seal between the moving parts and the external environment. The material used in the construction of the seal is resistant to oil, grease, and other contaminants, making it suitable for use in harsh operating conditions.
A: with minor lip
Constructional Aspects of an Oil Seal: