The Rubber Grommet is a connecting strap or ring which is installed into a specific hollow section by using a thin material which has specially developed edge to maintain proper position of the grommet. This grommet consists of a liner that can be easily inserted into the hole and an adjustable cap for the ease of cable access into the hole.
This rubber item is useful for protecting piercer product against abrasion or tear. It also prevents insulated cable, wire or lines that are passed through the penetrated object against abrasion. What is more, the grommet also comes in handy for safeguarding sharp edges of pierced object.
A high strength material like rubber is used for the fabrication of the grommet. The special modling design of this product helps to maintain its proper position to absorb vibration generated from machinery. It is generally placed between tripod and microphone or between chassis and radio for maintaining mechanical floating condition between two objects for inhibiting microphonism.
It is very common that the hole found in metal object or in any hard surface has sharp edges. These sharp edges can cut or damage rope, electrical wires, any soft material or cord which is inserted into the hole. Chances are that the electric insulation wire passed through this hole can break at its end point. It is, therefore, suggested to use plastic coated metal, rubber or plastic grommet to avert this damage. These types of grommets come in handy for shielding cable or wiring against contamination caused by water, dirt and air. The uniform and soft inner design of grommet safeguards wire against external damages.
Rubber Grommet is utilized where electrical wires go through drilled sheet metal or punched sheet metal or plastic casing to avoid possibility of damage. Edge grommets that are commonly referred as continuous and molded grommets are developed in different length and size options especially for this purpose. These types of grommets are available in single piece design that can be inserted manually to reduce spreading of vibration. These are extensively used for easy mounting of computer disk drives that are prone to vibration or for machinery sensitive to vibratory effect. The screws of these equipments that goes through grommet absorbs sounds produced from the chassis. Grommet is truly useful for sound insulation of electronic circuit parts that are prone to microphonism occurred due to vibration. Its presence can be noticed in data transferring cabinets, bushes with good acoustic properties, dense and complex cable or wire, telecom switches, medical devices, automobiles and in hydraulic tube used in aircraft designing.