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Rubber Grommets

A reliable source for Rubber Molding information and leading Rubber Molding Companies & Suppliers.

For example, rubber grommets are often used to protect wires or cords that pass though openings in metal surfaces that would otherwise be too jagged or sharp. Read More…

Rubber Grommets Rubber grommets are rubber rings that can be placed around an opening in a surface. Grommets are used to protect surface openings from tearing or breaking, and they protect objects that pass through the openings.
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Leading Manufacturers

Santa Fe Springs, CA  |  562-941-4800

RD Rubber Technology Corp is an ISO 9001:2015 certified company. We offer injection, LIM and transfer molding, rubber to metal bonding, engineering support, tooling design and more. Our customers rely on us to give them the best possible production solutions for rubber molding. From aerospace to medical, consumer products to military applications we build trust by being responsive to your needs.

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RD Rubber Technology Corporation $$$

Chicago, IL  |  800-782-7776

Rubber molding is what we do best. We believe in offering our very best to all customers no matter how large or small. For over 65 years we have pushed the boundaries of what we do and continue to improve our products and customer service every day.

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Accurate Products, Inc. $$$

Trenton, NJ  |  609-394-5245

With more than a century of manufacturing experience, Pierce-Roberts Rubber Co. is your source for custom molded rubber products.

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Pierce-Roberts Rubber Co. $$$

Stuart, FL  |  772-286-9278

If you have a need custom rubber molding for products with a fast turnaround, Britech Industries is the company you need to call. We do molded, extruded and die cut rubber – of various products and in the colors and compounds you need.

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Britech Industries $$$

Carson City, NV  |  800-733-2648

REDCO Rubber Engineering & Development is your complete source for rubber molding products, including rubber rollers, die-cut gaskets, and custom rubber products to suit your application.

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REDCO Rubber Engineering & Development Company $$$

Canonsburg, PA  |  866-672-8100

National Rubber was founded in 1997 with the values of variety, consistency, quality, open communication, and timely delivery at its core.

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National Rubber Corp. $$$

Trevose, PA  |  215-355-3440

Mason Rubber is a full-service organization assisting in the designing or reverse engineering of custom product to fulfill your production requirements.

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Mason Rubber Co., Inc. $$$

Tinley Park, IL  |  800-662-1009

Aero Rubber is an ISO 9001:2015-registered, world-class manufacturer of molded rubber products, custom molded rubber and molded rubber goods.

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Aero Rubber Company, Inc. $$$

Rootstown, OH  |  330-325-1821

Jet Rubber Company, employee-owned, offers custom molded rubber and rubber to metal components. They offer rubber molding in a wide array of standard rubber products as well as custom options for those more complex and difficult jobs.

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Jet Rubber Company $$$

Akron, OH  |  877-771-6766

With over 30 years of experience in the rubber molding industry, we remain committed to offering the best of our time and energy to all customers no matter how large or small.

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Premier Seals Manufacturing $$$

Grand Rapids, MI  |  616-538-4970

Kent Rubber Supply leverages our experience, innovation and continuous development to ensure our customers get the best products. We specialize in small to large batch production runs of molded rubber parts, allowing us to offer ultimate customization when it comes to a wide variety of specs. Our products vary in shapes, sizes and wall thicknesses in materials such as PVC and urethane. Both domestic and offshore services are available.

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Kent Rubber Supply Co. $$$

Southborough, MA  |  508-229-2000

Spring-Fast Grommets with fusion bonded nylon & a polymer cushion prevent wire chafe & give you best in class performance, 49% install savings & a 9.5x efficiency improvement. The nylon clad metal substrate snaps on with finger pressure & self locks - eliminating adhesives & the old slow & costly gluing process. It is used widely used in across the OEM & contract manufacture sectors. ISO 9001:2015 & AS 9100-D. Collaborative product customization available. Request free samples on site.

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Device Technologies, Inc. $$$
placeholder image RD Rubber Technology Corporation Accurate Products, Inc. Pierce-Roberts Rubber Co. Britech Industries REDCO Rubber Engineering & Development Company National Rubber Corp. Mason Rubber Co., Inc. Aero Rubber Company, Inc. Jet Rubber Company Premier Seals Manufacturing Kent Rubber Supply Co. Device Technologies, Inc.

Rubber grommets are used to protect other objects. The plastic or rubber insulation around electrical cables is particularly vulnerable to abrasion or to breaking after repeated flexing at its point of entry through a surface.

Some wiring varieties are vulnerable to damage if exposed to thin, hard surfaces because of the risk of crimping. Rubber grommets that protect wiring are usually broad and round, which prevents thin wiring from becoming crimped at an angle.

Rubber Grommets Rubber Grommets - Britech Industries

In industrial settings, many kinds of machinery and control equipment are housed in punched sheet metal; wire entry points in punched sheet metal are often fitted with rubber grommets to protect wires from becoming damaged.

Many factories and warehouses are equipped with ceiling-suspended, retractable power outlets. After repeated pulling and movement, power cables can become damaged or disconnected if not properly secured. Rubber grommets can be used in this situation to snugly hold wires at their point of contact to avoid damage to connection points.

Rubber grommets are usually made of extruded rubber, though they can also be molded rubber. Rubber extrusion is the process by which raw rubber is forced through equipment that heats and pressurizes it. Once the rubber becomes molten, it is forced through a die, which is a tool designed to shape raw materials into usable products. When the rubber emerges on the other side of the die, it is allowed to cool and harden, at which point it is cut and becomes a finished grommet.

Extrusion is not always a suitable grommet fabrication process, though, as it can only produce very simple shapes. Injection and compression molding processes can produce more complicated shapes. Both processes begin the same way as extrusion; the rubber is heated to a molten state.

Rather than using a die, though, molding processes involve the injection of molten rubber into a cavity. Once forced into a cavity, molten rubber conforms to the contours of the cavity.

Compression molding provides compressive force to the rubber which ensures that the rubber will come into complete contact with the cavity's surfaces. After the molding is complete, the rubber is ejected from the mold, and it is allowed to cool and harden. The product is then cleansed of imperfections if necessary and sent for shipment or additional processing.

Rubber Grommets Informational Video