Rubber Grommet Types

Rubber Grommets

Rubber grommets are available in several different types. Here are the principal ones:

Open Rubber Grommets

Open rubber grommets are the most basic design, featuring a central hole. They are used to protect cables and pipes when they pass through holes in metal plating.

Rubber Blanking Plugs

Rubber blanking plugs are used to seal holes and are designed to hold and control pressure coming from above or below, making them a good grommet choice for high-pressure UK devices and tubing.

Some feature a small hole into which a wire can be inserted for a firm hold. These are called diaphragm grommets.

Stepped Rubber Grommets

Stepped rubber grommets typically have a tapered cone shape, marked at intervals. These lines indicate where the grommet can be cut to different sizes. This versatile design makes them ideal for industries that use multiple cable sizes.

Custom Rubber Grommets

Some manufacturers offer custom rubber grommets, also known as special shape grommets, made to a customer’s unique specifications. This can include particular rubber materials, sizes, and designs.

Rubber Grommet Strips

Rubber grommet strips are distinct from other designs. They are strips designed to sit along the edge of a panel or plate to smooth its edge. They can be cut to size and adhesive varieties are also available.

White Rubber Grommets

White rubber grommets are a distinctive variety typically made from silicone. They are resistant to both low and high temperatures (between -55°C and 180°C), while special varieties of silicone resist temperatures as high as 800°C.

Tapered Rubber Grommets

Tapered rubber grommets are principally used to blank (seal) holes in metal panels and plates. The tapered design allows them to be used with thicker panels that might be too large for a closed grommet.

Closed Rubber Grommets

Also known as blind rubber grommets, closed grommets provide air-tight seals when applied, and can be a good choice for sealing holes not currently in use to prevent the build-up of dust.

Unlike similarly shaped round grommets, blind rubber grommets have no central hole. They are widely used by the UK electronics industry.

A further variant is a semi-blind grommet. These feature a central membrane that is thin enough to be pierced by wires or cables. This means that semi-blind grommets can take the place of both open and closed grommets.

Rubber Grommet Uses

Rubber cable grommets are versatile products that are widely used in several industries. Their principal uses include:

●Covering the sharp edges of holes in metal plates to protect cables and pipes from cuts and chafing damage, prolonging their useful life. A common example is an electrical backbox. These are rectangular chambers inserted into walls to house plugs and power points, with the wiring entry and exit points protected by grommets

●Rubber grommets provide strain relief, gripping wiring in place and minimizing the damage and disruption that might occur if the cord or cable was accidentally pulled. A good example of this usage is ethernet and other ports at the back of PCs and laptops

●Reducing engine vibration in cars and other vehicles

As a rubber grommet supplier, we provide various types of them, please feel free to contact us if you have need.