Professional Rubber Grommets Manufacturer
We are a professional rubber grommets manufacturer with over 20 years of experience, producing more than 18,000 types of rubber products for our customers. Our experienced team can solve various challenges from design to production. For any special-shaped rubber grommets, we can achieve a turnaround time as fast as 48 hours from design prototype to production samples.
Rubber grommets
rubber grommets
Rubber grommets are accessories used in wiring equipment, designed to allow wires to pass through holes while protecting them from being cut by sharp edges. They also provide dustproof and waterproof functions. These grommets are widely used in various fields, including electronics, electrical appliances, machinery, sports equipment, furniture, and lighting.
There are many types of rubber materials used for producing rubber grommets. Common materials include Nitrile rubber, Natural rubber, Neoprene, Silicone, and Fluoro rubber. The hardness of these grommets typically ranges from 30 to 60 Shore A. Customers can customize rubber grommets with different materials to suit the specific needs of their products.
General shapes of Rubber Grommets
Depending on the different applications of rubber grommets and the shape of the holes on the board, rubber grommets are commonly used in the following shapes:
- Round Grommets
- Oval Grommets
- Square Grommets
- Blind hole Grommets
- Special Shape Grommets
Physical Properties of Rubber Grommets
| Name | Tmperature Range | Tensile Stregth | Elongation at the Break | Rebound Resilience | Tear Strength | Abrasion Resistance |
|---|---|---|---|---|---|---|
| Natural Rubber | -40 to 80 ℃ (-40 to 170℉) | Excellent | Excellent | Excellent | Excellent | Excellent |
| BUNA-N (NBR) | -35 to 130℃ (-31 to 266℉) | Good | Good | Good | Fair | Good |
| FKM | -25 to 300℃ (-13 to 572℉) | Good | Fair | Fair | Good | Good |
| Silicone | -75 to 280℃ (-103 to 536℉) | Fair | Excellent | Fair | Fair | Fair |
| Neoprene (CR) | -40 to 130℃ (-40 to 266℉) | Good | Good | Good | Good | Good |
| EPDM | -50 to 150℃ (-58 to 302℉) | Fair | Fair | Fair | Fair | Good |
| SBR | -40 to 70℃ (-40 to 158℉) | Good | Excellent | Good | Good | Excellent |
Materials options of Rubber Grommets
Natural Rubber Grommets
With high tensile and tear strength, natural rubber grommets are strong and resistant to cracking. They also have good insulation properties.
Buna-N Grommets
Buna-N is the best material for oil resistance among rubber materials. It is ideal for rubber grommets that need to contact oil. NBR has low volume resistance and is a semiconductor rubber material with antistatic properties.
Neoprene Grommets
Neoprene rubber grommets offer excellent heat resistance, ozone aging resistance, and weather resistance. They are suitable for outdoor products and work well in sunlight. Neoprene also has very good flame retardant properties, making it ideal for high flame retardancy products.
FKM Grommets
FKM has high chemical stability and the best medium resistance among elastomers. It is suitable for use in strong acid and alkali environments. Additionally, fluororubber has excellent high-temperature resistance and can work at 300°C for extended periods.
Silicone Grommets
Silicone is suitable for brightly colored grommets. It is safe, environmentally friendly, and can be used for food contact and direct skin contact. As it does not adhere to human tissues, it has anticoagulant properties. It is also suitable for medical products.
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Free Design
Our engineers offer custom design services to create the perfect grommets for you. Just share your ideas with us!
Free Samples
We are pleased to provide free samples for testing. Contact us for more details!
High-Quality Mass Production
Certified to RoHS and REACH standards, our production adheres to ISO 9001 quality management system to ensure top-notch quality.