- One of the key factors that determine the effectiveness of an oil seal is its design. Engineers must consider factors such as the shape, size, and material composition of the seal, as well as the specific requirements of the machine it will be used in. For example, a seal used in a high-pressure environment may need to be reinforced to withstand the increased forces.
Different Types of Oil Seals
Engine oil seals are vital components in the automotive engine system, designed to prevent the leakage of lubricating oil and the ingress of contaminants. These seals play a critical role in maintaining the proper lubrication of the engine components, including the crankshaft, camshaft, and other critical parts. Engine oil seals contribute to the efficiency and longevity of the engine by preventing oil leaks and ensuring optimal performance.


Polyacrylate
Oil seals made of HNBR are characterised by excellent properties that include high resistance to mineral oils with additives, low steam and gas permeability, good cold flexibility down to -30 °C depending on type, good ozone resistance and friction resistance. HNBR seals withstand heat up to 150°C.

Figure 5: JTEKT seal numbering system
Table 6: Codes and numbers used in seal numbers
Many – too numerous to list, covering a vast range of designs, sizes, and materials suitable for a never-ending range of applications. Some designs conform to International Standards such as BS1399 and DIN 3760 for metric sizes and seal types, but the majority have been manufactured to suit particular applications – hence the enormous selection available. This blog is intended to assist in this selection and will consider seal type, materials, and sizes.
With the vast options of rotary shaft seals available it can be difficult to understand them and choose the correct seal for your machines. That is why are experts in Dublin and Cork are on hand to pick the right style, material, and size of the oil seal you need. Contact us today your seal specialist by email or by phone in Dublin on (0)1 427 7900 or in Cork on (0)21 500 355.
