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B) Housing-bore eccentricity
As shown in Figure 9, housing-bore eccentricity is defined as being twice the eccentricity between the housing-bore center and shaft rotation center.
Type B Oil seals
In conclusion, car oil seals are essential components in automotive engines, contributing to the efficiency, performance, and reliability of the vehicle. Understanding the different types of car oil seals, their applications, and the factors influencing their price can guide informed decision-making when selecting these critical components for vehicle maintenance and repair.
Engine Oil Seal:


The most common and economical material within the sealing industry, Nitrile, is used in many oil applications, the automotive sector for aircraft fuel applications, military and marine applications, and more.
If you're looking for quality oil seals, bearings for industry or agriculture, ATV parts, and plenty more, check out The Big Bearing Store. With low prices and same day shipping in most cases, there's no reason to spend time searching the internet when everything you need is all in one place.
Selecting Quality Auto Gaskets and Head Gaskets
No single physical property of rubbers is responsible for the successful performance of an oil seal or ‘O’ ring. The ultimate tensile strength, breaking elongation, modulus, shore hardness, creep and stress relaxation in tension and compression loads are all important physical properties that characterize a seal or ‘O’ ring. Compression strength and set together with stress relaxation or decay are important for effective sealing. The difference in these properties in a swollen seal is highly critical. An optimum swelling value in a fluid medium is a desirable feature. De-swelling decreases the seal pressure against the wall of the housing where the seal is fixed, leading to leakage. Over swelling minimizes the physical properties of the rubber. Seals made of polysulfide rubbers have extreme fuel resistance but undesirably high compression set. The effect of temperature on the seal is an important factor. Swelling under stress can increase at higher temperatures and a suitable compounding technique should be adopted to reduce this effect.
In addition to providing a reliable seal, the 40mm rubber gasket also helps to dampen vibrations and reduce noise, improving the overall performance and longevity of the equipment. Its durable construction ensures long-term reliability and minimizes the need for frequent maintenance or replacement.
Oil seals come in various shapes to fit the machines and substances to be sealed.
Figure 2 shows the structure and the names of the various components of the most typical oil seal.
The functions of the various components are also indicated in Table 1.