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Complete Guide to Oil Seals and O-Rings


🔗 Mechanical transmission

Date of publication : 21/03/2024

Reading time : 2 Minutes

Summary

Over 8 million parts in stock at ITAFRAN. Bearings, pulleys, belts, seals and spherical plain bearings at the best prices and available from stock !

Joints sealing are designed to ensure the impermeability of a moving axle or transmission. Their carefully tailored design and adequate compression provide reliable protection against losses and contribute to equipment safety and efficiency in a variety of applications.

What is a seal?

A seal is an essential component in many systems where preserving fluid or gas integrity is crucial. Whether in industrial, automotive, domestic or even aerospace applications, seals play a vital role in ensuring that there is no leak between an interior environment and an exterior environment.

The design of a gasket often relies on the use of soft materials such as rubber, silicone, plastic or even metal, depending on the specific requirements of the application. These materials have the ability to deform and conform to the surfaces they seal, allowing them to compensate for surface irregularities and provide an airtight seal.

What types of joints exist?

The gasket is an essential element in many fields, such as mechanical engineering, construction and plumbing. Interposed between two fixed or relatively mobile surfaces, they prevent the escape of fluid or gas from a system to the outside, thus ensuring its smooth operation. There are several types of joint, each adapted to specific needs. These include SPI seals, O-rings and V-rings.

Le joint SPI

Le joint SPI, also known as a "lip seal", is specifically designed to undergo rotation, providing a seal to camshafts, wheels or crankshafts. Made of metal armor and an elastomer, it offers a reliable solution for applications requiring rotation.

The O-ring

Widely used, the O-ring is suitable for static applications as well as some dynamic applications at low speed and moderate pressure. Economical, lightweight and space-saving, it is available in many sizes and elastomer grades, providing a versatile and reliable solution for effective sealing.

Le joint V-Ring

Le joint V-Ring is a type of mechanical seal used in various industries. Designed for dynamic sealing with an elastomer lip, it acts as a centrifugal baffle, ejecting impurities and maintaining an effective seal even at high rotational speeds.

What are the two main oil seal materials ?

  • Nitrile is ideal for applications with oils and hydrocarbons, with a temperature range of -40°C to +110°C. It is also compatible with water and chemicals.
  • Viton can also be used with oils and hydrocarbons, and is recommended for high temperature applications, ranging from -20°C to +200°C.

The risk of a dead joint ?

Faulty sealing can have significant impacts on the safety, performance and durability of equipment. Concrete examples illustrate the potential risks, particularly in terms of industrial safety and environmental impact, highlighting the crucial importance of choosing quality seals and respecting applicable standards.

Quality risks

Poor sealing can have significant consequences on the safety, performance and longevity of the equipment or product.

The use of inferior quality seals or seals unsuitable for their environment can cause industrial accidents. A gas or liquid leak can have health repercussions during production :

  • Burns, skin lesions
  • Respiratory problems; lung damage and poisoning
  • Eye irritation
  • Fractures, sprains

After manufacturing, accidents may occur. For example, in the automotive industry, defective seals can cause road accidents (brake fluid leaks).

In addition, it is crucial to guarantee the tightness of the equipment to avoid the risk of environmental pollution. Fluid leaks can have a lasting impact on water, air and soil.

Where to find an oil seal and an O-ring ?

Find quality oil seals and O-rings at ITAFRAN. As a leader in the field of mechanical components, ITAFRAN offers a diverse range of products designed to meet the most stringent requirements. Our gaskets provide reliable sealing in various industrial and mechanical applications. Visit our site today to discover our selection and benefit from our waterproofing expertise.

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