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RUBBER & SILICONEStandard parts. Custom solutions.

Rubber Isolation Grommets

Rubber Isolation Grommets

When we say rubber insulation grommets – we immediately think of sealing and plugging holes and water insulation. While this may be one kind of explanation, it’s not quite that simple. Namely, rubber insulation grommets have a huge application and multipurpose use. They are produced in various shapes and colors – they are used almost everywhere from the car industry, through children’s toys, to the food industry. But let’s go in order. 

Rubber isolation grommets primarily serve to prevent damage – and since they are waterproof, this means that water cannot penetrate and cause additional damage. Each toilet, shower, drain, etc. – contains one or more of these rubber insulation grommets. They are fixed and they are preventing water from circulating in places where it’s not supposed to. Due to their flexibility and elasticity, they are very practical and useful. If necessary, and according to the purpose, they can be made of harder but also softer rubber.

Due to their properties, rubber insulation grommets are often used in the electrical industry when protecting cables or working with high voltage current – where rubber protects but also insulates cables, accumulators, tanks, or other appliances from contact with each other and contact with water. Rubber insulation grommets withstand both high and low temperatures, so in the automotive industry, they are used as inserts for most cables and screws in the engine – or the rest of the parts for cars or other means of transport.

Speaking of protection, even special working footwear is made with rubber insulating crampons that will protect the wearer. However, rubber grommets are most often used as sealants on various appliances from TVs to kitchen appliances that are in frequent contact with water – to cars where they serve as protective plugs and prevent electronics from coming into contact with water or oil.

Their use and purpose are simple and you can’t even imagine how useful and necessary it is in everyday life. You certainly encounter rubber insulation grommets every day and you may not have even thought about it this way.

Rubber Bushing Size Catalog

Compare the bore, groove and flange dimensions of the flanged rubber bushing profile against the panel and mating part.

Rubber Bushing

Use d1, d2, d3, L and t in mm as shown in the flanged-bushing drawing. Match the groove and flange to the panel opening and thickness.

Dimension guide
Flanged rubber bushing — L, t, R1 ≤ 0.5, f1, d1, d2, d3, 30°
Profile reference. Use the dimension letters and units in the selected table and confirm the part drawing.
Product appearance
Rubber Bushing — product view
Illustrative product appearance. Refer to the selected row and part drawing for dimensions.
Part NO.d1d2d3Lt
EB1000134.57.530.75
EB1000234.57.550.75
EB1000345.59.530.75
EB1000445.59.560.75
EB10005571131
EB10006571141
EB10007571151
EB10008681241
EB10009681251
EB10010681261
EB10011681281
EB100126812101
EB100138101551
EB100148101561
EB100158101571

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Product specifications

Product form
Resilient insert around a panel pass-through
Dimensions to confirm
Panel hole, panel thickness, groove width and central passage.
Exposure to evaluate
Heat and cold cycling and oil splash. Validate the selected material under the combined conditions.
Edge clearance
Check retention in the panel and clearance around the passing cable, tube or hardware.

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