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Mechanical Seals

A reliable source for Hydraulic Seal information and leading Hydraulic Seal Companies & Manufacturers.

Mechanical seals are intended for applications in which a rotating shaft and its housing are under a state of stress, including a combination of high pressure, temperature, and speed. Read More…

Mechanical Seals Mechanical seals are tools used to prevent leakage in all kinds of equipment. "Mechanical seal" is the broadest way to describe a seal. O-rings, lip seals, oil seals, hydraulic cylinder seals, and an extensive variety of other seals all qualify as mechanical seals.
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Leading Manufacturers

Sparta, NJ  |  973-383-2487

We provide a variety of seals but hydraulic seals are our specialty! Just a few of the hydraulic seals that we are able to offer include hydraulic cylinder seals, hydraulic rod seals, and hydraulic piston seals as well as many others! For over twenty years we have been dedicated to providing our customers with exceptional customer service. To learn more about what we may be able to do for you, visit our website today! We are ISO 9001:2015 certified.

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Allied Metrics Seals & Fasteners, Inc. $$$

Akron, OH  |  877-771-6766

We are not only technically knowledgeable about hydraulic seals, but we also have the hands-on experience to back it up. We have over 30 years of industry experience, and we can use that experience to benefit you.

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Premier Seals Manufacturing $$$

Lawrenceville, GA  |  877-432-4627

Since 1973, Daemar USA has been producing the best-quality hydraulic seals and o-rings on the market. We offer a wide variety of o-rings, including silicone, Teflon, EPDM, HSN-80, back-up, and Aflas o-rings. We also offer o-ring cord, quad rings, and o-ring packs. Our seal collection includes oil seals, axle seals, JM clipper seals, end caps, Teflon Energized seals, v-rings, and more. We are an ISO 9001 certified company, and we are eager to help you find the o-rings and seals that you need!

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Daemar USA $$$

Grand Rapids, MI  |  616-538-4970

Kent Rubber Supply has been a trusted supplier of hydraulic seals since 1946. Focusing in exceeding customer service, we leverage the best equipment and the most knowledge staff to ensure we meet our customers unique needs. With our trusted experts, we determine the best rubber, foam, sponge or PVC material for your specific need. We continue serving customers both offshore and domestic.

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Kent Rubber Supply Co. $$$

Chandler, AZ  |  480-892-7325

Our list of inventory has grown since our founding over 20 years ago. We started small, but now offer an extensive product list of hydraulic seals, o rings, and other rubber products.

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Arizona Sealing Devices, Inc. $$$
placeholder image Allied Metrics Seals & Fasteners, Inc. Premier Seals Manufacturing Daemar USA Kent Rubber Supply Co. Arizona Sealing Devices, Inc.

Mechanical seal varieties are used to prevent the unwanted release of pressure, lubricants, hydraulic fluids and other properties of a system that makes use of them. Seals are also used to prevent the contamination of those systems by dirt and other hazards. Equipment like agitators, mixers, gas seals, pumps, valves, actuators and many other kinds of machinery all involve the use of some variety of mechanical seal.

Mechanical Seal Manufacturing Mechanical Seals - Allied Metrics Seals & Fasteners

In addition to preventing leaks, mechanical seals also keep contaminants from entering and help to maintain pressure levels. Piston seals, flange gaskets and diaphragm seals are also kinds of mechanical seals, and they are all essential to the functioning of certain kinds of equipment.

Most mechanical seals are specially designed to prevent leaks in particular applications and cannot be interchanged with those seals used in other mechanisms. A piston seal, for example, cannot be used as a flange gasket; they are shaped differently, made out of different materials and feature different mechanical properties. The shape, size, and composition of a given mechanical seal always depends on the conditions in which it will be applied.

Also, depending on the narrowness or broadness of a given understanding of the words "mechanical seal," certain kinds of seals may or may not qualify. Simple plastic lids qualify by the broadest definitions, while some of the strictest definitions might only include seals applied in industrial process equipment or in heavy machinery.

In either case, mechanical seals perform the same task: to isolate and contain materials in an enclosure. Correctly pairing seals with their applications is essential to the safe and effective use of the equipment in which they are installed. For example, Teflon is often chosen for use in hydraulic cylinders because it is resistant to corrosion induced by exposure to hydraulic fluids.

Natural rubber, on the other hand, may degrade when exposed to such chemicals. The decision to employ a given seal material should always be chosen carefully; this will ensure sustained effective and safe operation of the seal and the equipment it protects.

Mechanical Seals Informational Video