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Metric Oil Seals

Metric oil seals are essential sealing components designed to prevent lubricant leakage and protect machinery from dirt, dust and moisture contamination. Commonly referred to as shaft seals or metric shaft seals, these components are widely used in rotating equipment and hydraulic systems to maintain reliable performance and extend equipment lifespan. Available in a wide range of sizes, materials and configurations, metric oil seals are suitable for automotive, hydraulic and industrial applications where dependable sealing is critical. Swan Seals supplies high-quality oil seal solutions including hydraulic oil seal and rubber oil seal options designed for demanding operating environments.

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Metric Oil Seals

What are Metric Oil Seals?

An oil seal is a sealing component designed to retain lubricants while preventing contaminants such as dust, dirt and water from entering mechanical systems. Often referred to as shaft seals or metric shaft seals, these seals are typically installed around rotating or moving shafts to maintain lubrication and reduce wear on machinery components. Metric oil seals are manufactured to metric dimensions and are commonly used in engines, gearboxes, pumps, motors and hydraulic equipment. Rubber oil seal designs provide flexibility and effective sealing performance, while reinforced constructions improve durability and resistance to pressure and wear.

Types of Metric Oil Seals

There are several types of metric oil seals available depending on the application and operating conditions. Common options include single lip shaft seals, double lip hydraulic oil seal designs, metal-cased seals and rubber-coated oil seals for improved sealing and installation performance. Swan Seals supplies SC type rubber oil seals, TC type wiper lip seals, metal cased oil seals and Viton® oil seals for higher temperature and chemical-resistant applications. Different material options are available to suit varying environments, including nitrile rubber for general-purpose sealing and Viton® for demanding industrial and hydraulic systems.

Applications for Metric Oil Seals

Metric oil seals are widely used across automotive, hydraulic, manufacturing and heavy engineering industries where rotating
equipment requires reliable sealing protection. Shaft seals are commonly fitted in pumps, gearboxes, electric motors, compressors, axles and hydraulic cylinders to prevent lubricant loss and reduce contamination. Hydraulic oil seal solutions are particularly important in high-pressure systems where maintaining fluid integrity and equipment efficiency is essential. Rubber oil seals also help reduce maintenance costs and improve machinery reliability by protecting internal components from premature wear and environmental damage.

Choosing the right Metric Oil Seals

Choosing the correct metric oil seal depends on factors including shaft size, operating pressure, rotational speed, temperature and
media compatibility. Selecting the right shaft seal material is essential for ensuring long-lasting sealing performance and resistance to wear, oils and chemicals. Nitrile rubber oil seals are commonly used for standard oil and grease applications, while Viton® metric shaft seals are ideal for elevated temperatures and aggressive fluids. It is also important to consider seal design, lip configuration and installation requirements to achieve optimal sealing efficiency. Swan Seals offers a comprehensive range of metric oil seals and hydraulic oil seal solutions to suit industrial, hydraulic and automotive applications.