Large diameter rubber grommets they can be useful to you for a variety of purposes. They are most commonly used to protect cables, wires and similar things when passing through holes with sharp edges to eliminate abrasions and tears. Also they will contribute to more professional and also better look. Because rubber is water resistant material you will prevent water from entering. One more thing where you can find them useful is to reduce vibration. 

Large diameter rubber grommets as their name suggests are larger than others and have an inner diameter range from 2mm to 120mm. There are even extra-large ones whose inner diameter range is above 120mm.It will not be difficult for you to find whatever size you need on the market, because they are made in many different sizes and you can also ask from the manufacturer to make you customized one. In addition to primarily paying attention to the inner diameter range when deciding on the right size for you, they also differ in outside diameter, groove diameter, groove width and overall thickness. All that factors you have to consider when buying.

So as you can see, you will always find the right size for any hole. They can be made of different materials, and most often you will find those made of silicone, neoprene, nitrile rubber, natural rubber and so on. All large diameter rubber grommets are very durable and can withstand large temperature changes, from as low as minus 40 degrees Celsius to over 200 degrees Celsius. And even UV light can’t damage large diameter rubber grommet significantly. Hardness varies and can also play an important role in the choice. The standard is between a 50 and 60 A durometer, but you can find models with a 30 A and also an 80 A durometer.