Find o-rings including o-ring distributors, metric o-rings, rubber o-rings and more. From static o-rings and viton o-rings to o-ring kits, you will find the o-ring you need. Use the time-saving Request for Quote tool to submit your inquiry to all the o-ring suppliers and manufacturers you select.
Manufacturer of o-ring static seals, metric seals, buna o-rings, Teflon® o-rings, Viton® o-rings, rubber o-rings, o-ring seals and more. Packing Seals & Engineering serves many industries from automotive to pump applications. Since 1959, we have been providing customers with solutions that work.
Commercial, FDA, military, metric o-rings, caps, plugs, gaskets. Custom, rubber to metal, diaphragms, face seals and nonstandard o-rings. Viton® and o-ring kits supplied by Arizona Sealing Devices. Your complete source of seals, die cutting, oil seals, packings, sheeting, vee rings, etc. Since 1989.
Allied Metrics Seals & Fasteners is a leading manufacturer and distributor of high-quality metric seals and o-rings for all industries. We offer FDA-approved elastomers, Teflon® seals, o-rings and much more. Call or visit our website for more information about our products and services!
Founded in 1979, California Sealing Devices is one of the biggest distributors of sealing solutions in North America. Our o-ring selection consists of standard, non-standard and metric. We carry o-ring kits and o-ring lube, as well as Viton® o-rings. Looking for the best in seals? You’ve found us!
Global Rubber Products offers customers a vast variety of O-ring sizes & compounds. For over 30 years, we have been supplying rubber O rings (inch & metric), Q-rings, tetra seals, backup rings, Teflon encapsulated O-rings, O ring cord, cord rings, O-ring kits and custom vulcanized (spliced) O-rings.
Meeting your specific needs for custom molded rubber products. Quality control and testing procedures ensure superior O-rings, gaskets and custom-molded shapes. Micro-miniature to large o-rings in standard, metric sizes or custom. Spliced O-Rings. All Elastomer Compounds. Call for a competitive quote!
At General Gasket, our specialty is custom gaskets. In addition to custom gaskets we offer a full line of o-rings, mainly rubber, in all sizes including: Buna-N, Viton, EPDM, Teflon and Silicone. You will find cost effective pricing, quick delivery, superior service and we handle all size orders.
Finding hard-to-find o-rings is our specialty along with many other products. At Seal Technologies, our complete line of sealing ring products and services is extensive, so give us a call for the details. We also have an online upcoming store in the works and machine shop services are also available.
Profile Rubber produces high-quality o-rings from such rubber compounds as fluoroelastomers, silicones and urethanes. Manufacturing to customer specs, we produce o-rings anywhere from miniature to 30" sizes, offering personal attention to orders from mold making to finishing. Visit our website today!
O-rings are a small circular shaped contraption, typically
manufactured from a variety of rubber or plastic. O-rings purpose is
to act as a seal and prevent the escape of oil, air and water as well
as other substances under high pressure. O-rings are similar to gaskets
and often imitate their functions. In industrial applications, o-rings
are placed between matched machined parts – for instance, inside
of pneumatic systems, pumps and hydraulic
valves. O-ring manufacturers use a process (of rubber
o-rings)
that mixes rubber and other additives in a rubber mixer. Then the
material is poured into a rubber press to form a shape. Lastly are
the final touches to remove the excess material and finish with a
well-shaped product.
O-ring manufacturers use a simple design which is very powerful and
reliable for sealing static machine parts. Because of their simple
shape, o-rings tend to be fairly inexpensive and are relatively easy
to use. O-rings work by creating a barrier around areas of leak risk.
O-rings are ideal for the job because they, elastomeric materials
especially, transmit stress in every direction upon compression and
are able to prevent leakage. Some o-rings are even capable of sealing
leaks that have pressures reaching up to 1,000 bar.
Besides being a low cost alternative to other sealing methods, o-rings
also have the advantage of using a wide range of materials available
for O-ring manufactures. Some of the most common materials used for
o-rings include nitrile, butyl, styrene/butadiene, hypalon, silicone,
Teflon® and viton. Partly because of the wide range of materials
available, one covering almost any environmental need, many industries
choose to use o-rings for their sealing applications. O-rings are
frequently used in the automotive, water filtration, off road equipment,
hydraulics, telecommunications, electrical, medical, pharmaceutical
and food processing industries.
When purchasing o-rings, there are a couple general guidelines to
keep in mind. First of all, because there are so many different kinds
of materials that are used to make o-rings, it is important to know
the particular conditions in which the o-rings must work. The varying
material compounds that are used offer different lubricities, degrees
of hardness, heat tolerances, chemical resistances and other properties.
Also, it is good to consider what the particular size and strength
needed will be. Additionally, some o-rings need accessories, such
as back-up rings, that assist in the operation and function of the
o-rings, so it is important to know exactly what is needed before
making an investment.
Ethylene propylene (EPDM)
o-rings are extremely resistant to polar solvents such as alcohols,
acetone and MEK. However, EPDM o-rings are not a good choice for applications
that involve petroleum oils and greases.
Ethylene-acrylate o-rings
are commonly used in conjunction with power steering liquids, transmission
fluids and engine oils. Compared to polyacrylate o-rings, these have
a better low temperature performance but do tend to swell up more.
Fluorosilicone o-rings
have excellent heat stability as well as great oil and fuel resistance,
but they should not be used in dynamic applications due to their poor
mechanical properties.
Hydrogenated nitrile
(HNBR or HSN) o-rings have similar properties to standard nitrile
rubber, but are ozone resistant. Some popular uses include automotive
refrigerants and high temperature hydraulics.
Kalrez o-rings
are made of an advanced material that is being implemented more and
more on a daily basis. Kalrez resists over 1,800 different chemicals
and is stable in temperatures up to 620 °F; it is also used in aggressive
chemical processing, oil and gas recovery and in aerospace and petroleum
applications.
Metric o-rings are o-rings whose measurements are specified in metric units.
Neoprene/polychloropene
o-rings are made of a material that was the first synthetic rubber.
During WWII, it served as the primary seal material, but today it is
mostly used in refrigerant applications.
Nitrile o-rings
are by far the most popular type of seal material used in the world.
Nitrile o-rings are carbon triple-bonded to nitrogen, which provides
good resistance to oils and fuels.
O-ring kits are sets
of o-rings that are designed to replace faulty o-rings.
Polyacrylate o-rings
are extremely resistant to petroleum oils, ozone and oxygen. However,
polyacrylate o-rings have relatively poor water resistance and low temperature
flexibility.
Rubber o-rings are made of rubber and synthetic rubber materials.
Silicone o-rings
are made of a material that is commonly used in hot air applications
as well as devices in the medical field. The silicon-oxygen structure
gives silicone o-rings good thermal stability.
Viton o-rings
are made of a material that is one of the most commonly used for seals.
Its popularity can be attributed to its good chemical resistance and
extreme upper temperature limit.
O-Rings Terms
Adhere –
When materials stick or cling to one another.
Aging – When a material undergoes
physical changes over time.
Back-Up Ring – A hard ring
that is placed in the gland between the o-ring and the groove walls in
order to prevent extrusion.
Batch – The resulting product
from one mixing operation.
Cell – A small cavity that is
surrounded either completely or partially by walls.
Elastomer – Any of the various
materials that are elastic and resemble rubber. Elastomers can be used
instead of springs as energizers.
Energizer – A device used in
some o-rings that acts to retain the ring’s natural shape. Often,
either a spring or an elastomer serve as the energizer at the core of
the o-ring.
Friction – The resistance to
motion when two or more surfaces rub against one another.
Gland – Cavity into which an
o-ring is installed, which also has the groove and mating surface of the
second part.
Inside Diameter – The size measured
from any inner point of an o-ring to the inner location on the direct
opposite side, creating a straight line.
Lubricity – The slippery, lubricated
qualities an o-ring material has.
Memory – A material’s
tendency to resume its original shape after deformation.
Mil-Spec – O-rings that meet
and/or surpass standards of the United States military.
Off-Register – When a mold is misaligned and causes an out-of-round
cross section of an o-ring.
Outside Diameter – The size
measured from an outside point of an o-ring to that same point on the
direct opposite side, creating a straight line.
Overflow Groove – A groove around
the mold cavity of an o-ring that is used to accept excess material from
the cavity in order to create a better fit.
Parting Line – A line outside
of o-rings that is left-over from when the two mold plates met.
Polyurethane – Any of various
resins that vary in flexibility and are used in chemical resistant coatings,
foams and adhesives.
Squeeze – Cross-section compression
of an o-ring gland assembly that shows between the surface of the groove
bottom and surface of the mating metal part.
Vulcanized – Improved strength,
lubricity and resiliency by combining sulfur and/or other additives with
both heat and pressure.
Water Swell – The bulging or
increased size of an o-ring due to water intake.
