Oil seals are basic and inexpensive components. These oil seals serve to prevent lubricant leakage at high pressures and the entry of extraneous components into the machinery. With such an important role to play, these oil seals must be chosen with care.
The oil seal is the most commonly ignored component of a mechanical assembly or bearing assembly. Due to their relative affordability, oil seals are sometimes overlooked and taken for granted. However, as a game changer in a bearing assembly, one must comprehend the benefits it brings in keeping your equipment in top shape.
In this article, we’ll look at the types of oil seals for various industries and offer helpful guidance on how to choose Oil Seals for Your Industrial use or pick the one that’s best for your industry.
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Choose Oil Seals for Your Industrial use
These oil seals need to be carefully selected since they have such a significant role to play. When choosing oil seals, several different factors must be taken into account. The following factors should be considered:
Size and shape
In accordance with the requirements of the application, oil seals must be of the proper size and shape. Inadequately sized seals may lead to inadequate sealing and poor fit. Therefore, it’s essential to make sure the oil seal you choose for your application has the correct diameter and breadth.
Material
Depending on its application, the oil seal’s material might affect how effectively it operates. Oil seals are available in a variety of materials, such as rubber, metal, leather, silicone, synthetic, Viton, and nitrile, each of which has characteristics that are best suited for a particular purpose.
Nitrile: Since it is flexible and resistant to oils, hot water, and gasoline, nitrile is suitable for a wide range of applications.
Rubber: Rubber’s great flexibility makes it simple to press fit into housings with sufficient interference, ensuring complete static sealing!
Metal: Oil seals with metal casings offer the best defense against pollutants, dust, and water, making them the best option for harsh situations.
Leather: Leather oil seals are ideal for applications that require an extremely tight seal, assuring a secure fit and avoiding leakage or contamination.
Pressure
As the pressure rises, so does the radial load and friction of the sealing lip in contact with the shaft. It is advised to use an oil seal that can sustain pressures greater than the system’s maximum pressure in order to offer the best protection. Traditional oil seals are intended for simple applications with internal pressures seldom exceeding 8 psi.
Shaft speed
The maximum permitted shaft speed, runout, material of the oil seal used, kind of liquid being sealed off, and concentricity between the housing bore and shaft must all be taken into account before investing in an oil seal. To attain the highest shaft speed, each of these elements must be taken into account.
Temperature Range
The key aspect influencing the composition of an oil seal is the temperature within the oil seal environment. The ideal temperatures for that material often fall within a certain range. To maintain optimum performance, the seal elastomer must be installed in a system where temperatures remain within its temperature range.
Lubricant
The performance of the oil seal is significantly influenced by oil or lubricants. If you use lubricated seals, make sure the lubricant is appropriate for the elastomeric material of the seal and is applied continuously together with an oil that has the appropriate viscosity for the application.
Shaft Finishing
An excellent shaft surface polish offers a highly reliable oil seal. Examine the surface quality of the shaft to verify the efficacy of your seal. The performance of the sealing is greatly affected by the spiral lead and the mark made by the finishing tool.
Types of oil seals for various industries
Double lip oil seals
Double lip oil seals have two lips for greater fluid separation or contaminant exclusion. Lip seals are used to seal rotating components like a shaft or revolving hole. Axle seals, power steering seals, hydraulic pump seals, strut seals, and valve stem seals are a few common examples.
Single Lip Oil Seals
Single Lip Oil Seals are designed to seal low-pressure fluids or thick greases. Depending on shaft speed, these seals are often employed for sealing lower-pressure (up to 0.5 bar/7psi) fluids or heavy greases.
Single lip oil seals have the following Features:
Abrasion resistance
Smooth finishing
Excellent elasticity
Metal-Cased Oil Seals
These seals have stamped metal casings with an elastomer glued sealing lip. The casing is made of carbon steel. During installation, the case safeguards the lip seal. Metal-encased seals are usually employed in high-pressure or high-temperature environments.
Rubber Oil Seal
These rubber oil seals serve the practical purpose of shielding the final products against leaks of any kind. These are well-known for their precise designs, excellent efficiency, and extensive functionality. Rubber seals are utilized in both high- and low-pressure applications and are resistant to corrosion. Some of the most popular rubber compounds used for this purpose are nitrile, polyacrylate, viton®, silicone, and polytetrafluoroethylene.
Rod Seals
Rod Seals, also known as Gland Seals, or Neck Seals, are an essential component of any hydraulic or pneumatic cylinder system. They are essentially intended to fill the gap between the rod and gland of a cylinder. The Rod Seal serves as a pressure barrier to keep the operating fluid under control and in place while a cylinder is in dynamic motion, as well as to prevent leaks and corrosion.
Bottom Line
It is important to choose Oil Seals for Your Industrial use or for your machine that is adequate for the demands of the usage environment and that can be replaced with ease. For your business to succeed, efficiency and performance must be at their highest levels. As a result, oil seals play an important role in the equation.
Finding high-quality seals from a reliable manufacturer is vital in addition to the previously mentioned requirements. If you’re looking for top-of-the-line oil seals or seeking to buy oil seals online, eMechmart is a premier distributor of oil seals and premium industrial and engineering parts in India. Visit our website today to get started!
Author Bio:-
Ahmad Tunvar Ahmad Tunvar is the CEO of Emechmart which is a prominent place to buy Industrial, Agriculture, Automobile and Building tools online. They are building a platform between the buyers, sellers and the manufacturers, facilitating hassle-free trading of required products and tools.
