Mechanical devices used in static or dynamic applications to separate two liquids or gasses or prevent the ingress of contamination.
Accordion Bellows and Protective Boots (115 suppliers)
Accordion bellows and protective boots are convoluted, expandable, fabric or elastomer components used to protect screws, shafts, slide ways and other components from liquid, chips, dirt and other debris.
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Back-up Rings (121 suppliers)
Back-up rings or anti-extrusion rings are washer-like devices used to prevent seals from extruding through gaps while under pressure. Seals are installed in the downstream side of the gland.
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Bearing Isolators (51 suppliers)
Bearing isolators are dynamic seals designed to protect bearings from outside contaminants. They are comprised of a rotor (rotating) and stator (stationary) member.
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Bonded Seals (56 suppliers)
Bonded seals are metal washers with a rubber insert bonded to the inside diameter for use in high pressure applications.
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Brush Seals (20 suppliers)
Brush seals are used as a barrier against flying debris and liquid. They are also used to reduce or block the infiltration of light or air flow.
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Caps, Grips, and Closures (435 suppliers)
Grips, caps and closures are protective devices for the ends of a shaft, tube, pipe, fitting, connector, screw, bar, or other shape. They can also be used to provide a hand grip or hanger tip.
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Compression Packing Seals (284 suppliers)
Compression packing seals or gland seals are deformable materials used to prevent or control the leakage of fluid between surfaces that move in relation to each other.
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Conical and Telescopic Screw Covers (12 suppliers)
Conical and telescopic screw covers are used to protect ball, acme and lead screws from contaminants.
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Diaphragm Seals (107 suppliers)
Diaphragms (73 suppliers)
Diaphragms are flexible sealing element components that are used in pump, valve, and diaphragm seal applications. They provide a barrier between two chambers.
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Die Cutting Services (606 suppliers)
Dynamic Seals (675 suppliers)
Dynamic seals include oil seals, hydraulic and pneumatic seals, exclusion seals, labyrinth seals, bearing isolators, and piston rings. They create a barrier between moving and stationary surfaces in applications such as rotating shafts and pistons rings. This is a general search form; more detailed search forms are available.
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Edge Trims and Trim Seals (73 suppliers)
Electrical Connector Bases and Covers (120 suppliers)
Electrical connector bases and covers are designed to provide mechanical protection for electrical connectors. They are available in many shapes and sizes to accommodate different types of electrical connections.
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Exclusion Seals (137 suppliers)
Expansion Joints (470 suppliers)
Filler Caps and Fuel Caps (33 suppliers)
Filler caps and fuel caps seal filling ports in tanks and reservoirs holding liquids or granular media. Filler caps and fuel caps prevent the ingress of foreign materials into and the leakage of fuel or media from the reservoir.
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Flange Protectors (16 suppliers)
Flange protectors are designed to protect flanges from damage during shipping, or from exposure to corrosive elements.
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Gaskets and Gasketing (1,389 suppliers)
Hermetic Sealing Services (55 suppliers)
Hydraulic Seals and Pneumatic Seals (294 suppliers)
Hydraulic seals and pneumatic seals include piston seals, rod seals, U-cups, vee, cup, and flange packings.
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Inflatable Seals (30 suppliers)
Inflatable seals are elastomeric tubes designed to round out with the introduction of a medium (usually air) to form an tight barrier between a mounting and striking surface.
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Labyrinth Seals and Clearance Seals (24 suppliers)
Labyrinth seals and clearance seals are minimum-leakage seals that protect machine elements from contamination through a noncontact method. They operate on the principle of positive clearance and do not rub on shafts or housing.
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Machine Way Wipers (47 suppliers)
Machine way wipers provide a seal between a machine slide or way and a stationary surface.
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Mechanical Seals (354 suppliers)
Metal Bellows (140 suppliers)
Metal bellows perform a number of tasks including sealing environments, carrying gases, liquids and slurry, and mechanically coupling for electrical contact.
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Metal Ring Seals (83 suppliers)
Metal ring seals are static devices that can withstand high operating temperatures, pressures, and vacuums. They can also withstand cryogenic conditions and high face-to-face cycling.
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Oil Seals and Grease Seals (341 suppliers)
Oil seals and grease seals have a flexible lip that rubs against a shaft or housing to prevent the leakage or ingress of fluids and dirt.
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O-rings (768 suppliers)
O-rings are solid-rubber seals that are shaped like a doughnut. When pressed between two mating surfaces, O-rings block the passage of liquids or gases.
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Packer Elements (19 suppliers)
Packer elements are down-hole sealing elements used to isolate sections in oil and gas drilling applications.
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Piston Rings (107 suppliers)
Plugs, Stoppers, and Inserts (351 suppliers)
Plugs, stoppers and inserts fit into holes or cavities and are designed for the ends of shafts, tubes, pipes, fittings, connectors, screws, bars, or other shapes.
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Sealing Glands (54 suppliers)
Sealing glands are fittings that allow tubes, process pipes, cable or any single element assembly to be sealed in pressure / vacuum applications by use of a compression seal.
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Solid Elastomeric Rings (111 suppliers)
Solid elastomeric rings are compression seals of differing cross sections. Some examples are X or multiple rings, rectangular rings, tetraseals, trapezoid rings, T-section rings, delta rings, D-rings, H-rings, heart rings, and diamond rings.
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Switch Sealing Boots (51 suppliers)
Switch sealing boots protect switches from contaminants such as dirt, dust, gas, and liquids. They are generally tough, pliable silicone rubber devices for toggle, pushbutton, rocker, and rotary switches.
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V-ring Seals (39 suppliers)
V-ring seals are all-rubber seals used primarily to exclude dirt and other contaminants. They are stretched over shafts and seal against the side of housing or another machine component.
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Waterstops (15 suppliers)
Waterstops are static seals used between joints in concrete structures to prevent the passage of water or other fluids.
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Way Covers and Shields (27 suppliers)
Way covers and way shields are machine tool accessories used to protect the rail or way of a machine from contamination and abrasive cuttings. Way covers come in two common styles: bellows type and telescoping type.
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