Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
Standard double-sided rubber grommets are molded rubber components for panel hole protection, cable routing, tube protection and edge isolation. Outer diameter, inner diameter, panel hole diameter, groove width, panel thickness range, material, Shore A hardness, color, tolerance and packaging can be customized according to drawings or physical samples.
Standard double-sided rubber grommets are flexible rubber components used to protect wires, cables, tubes or rods passing through panel openings. The double-sided retaining structure helps hold the grommet in position from both sides of the panel. Dimensions, material, Shore A hardness, hole fit, panel thickness range and packaging should be confirmed by drawing, sample or application requirements.
Standard Double-Sided Rubber Grommets — Natural Rubber Grommets for Wire, Cable, and Panel Protection
Standard double-sided rubber grommets are molded natural rubber components designed to line drilled panel holes and protect wires, cables, and cords from sharp or rough edges. Each grommet has a groove running around both sides of its center flange, allowing it to seat securely into a panel from either direction while shielding the passing cable from abrasion.
Key Specifications
| Parameter | Typical Specification |
|---|---|
| Material | Natural rubber, eco-friendly |
| Type | Double-sided groove mount |
| Shape | Round |
| Color | Black (standard) |
| Size Range | ID 3 mm to ID 40 mm |
| Measurement Note | All dimensions are manually measured; tolerance of about 0.5-1 mm |
| Packaging | 500-1000 pieces per pack depending on size |
What Is a Double-Sided Rubber Grommet?
A double-sided rubber grommet is a ring-shaped rubber insert with a groove on both the top and bottom of its outer edge, allowing it to grip a drilled panel hole from either side. This differs from a standard single-groove grommet, which typically installs from only one direction. Dimension E in the diagram represents the groove width, while A, B, C, and D define the outer diameter, base width, inner diameter, and overall height of the grommet.
Full Size Chart
| Inner Diameter | A/mm | B/mm | C/mm | D/mm | E/mm | Weight | Pieces/Pack |
|---|---|---|---|---|---|---|---|
| ID 3mm | 7.92 | 5.27 | 2.86 | 4.69 | 1.5 | 0.22 | 1000 |
| ID 4mm | 9.3 | 6 | 4 | 4.74 | 1.5 | 0.27 | 1000 |
| ID 5mm | 9.45 | 6.9 | 4.7 | 5 | 1.5 | 0.3 | 1000 |
| ID 6mm | 11.27 | 7.63 | 5.6 | 5.14 | 1.5 | 0.35 | 1000 |
| ID 7mm | 11.87 | 8.7 | 6.4 | 5.3 | 1.5 | 0.42 | 1000 |
| ID 8mm | 12.95 | 9.15 | 7.84 | 6.1 | 2 | 0.47 | 1000 |
| ID 10mm | 14.75 | 11.69 | 9.75 | 6.15 | 2 | 0.63 | 1000 |
| ID 12mm | 17.57 | 13.7 | 11.5 | 6.24 | 2.5 | 0.84 | 1000 |
| ID 14mm | 20.55 | 15 | 13.11 | 6.5 | 2.5 | 1.34 | 1000 |
| ID 16mm | 23.09 | 17.3 | 15.6 | 7.1 | 2.5 | 1.73 | 1000 |
| ID 18mm | 24.31 | 20 | 17.61 | 7.43 | 2.5 | 1.92 | 1000 |
| ID 20mm | 27.48 | 22 | 18.45 | 8.09 | 3 | 2.75 | 1000 |
| ID 22mm | 30.86 | 25 | 21.68 | 8.51 | 3 | 3.4 | 1000 |
| ID 25mm | 34.15 | 27 | 23 | 9 | 3 | 4.55 | 1000 |
| ID 30mm | 39.79 | 30 | 28.62 | 10 | 3 | 3.65 | 500 |
| ID 35mm | 48.71 | 36.21 | 35 | 11.45 | 3.5 | 5.5 | 500 |
| ID 40mm | 53.51 | 44.4 | 38.14 | 11.68 | 3.5 | 6.2 | 500 |
Note: All dimensions are manually measured and may have a tolerance of about 0.5-1 mm.
Key Features
- Protects wires, cables, cords, and pipes from sharp or rough panel edges.
- Double-sided groove allows secure seating in a drilled hole from either face.
- Made from natural rubber for good flexibility and eco-friendly material sourcing.
- Wide size range from ID 3mm to ID 40mm to fit most standard wire and cable diameters.
- Consistent groove design across all sizes for reliable panel mounting.
Common Applications
- Automotive and marine wiring pass-throughs.
- Household appliance and electronics panel wiring.
- Industrial control panels and enclosures.
- Office and home furniture cable management.
- General equipment housings where cables cross a drilled panel.
Material Notes
Standard double-sided rubber grommets in this size chart are made from natural rubber, valued for good flexibility, resilience, and eco-friendly sourcing compared with some synthetic alternatives. Natural rubber grommets are well suited for general indoor wiring and cable protection where extreme chemical or high-heat resistance is not the primary requirement. For harsher chemical, oil, or extreme temperature environments, alternative compounds such as EPDM, NBR, or silicone grommets may be more suitable.
Sizing and Selection Guide
Grommet size should be matched to the outer diameter of the cable, cord, or pipe passing through it, using the inner diameter (ID) column as the primary reference point. Dimension A represents the overall outer diameter of the grommet, which should be checked against the drilled panel hole size before ordering. Because manual measurement can introduce a small tolerance of about 0.5-1 mm, it is good practice to allow a slight margin when matching grommet size to a tight panel cutout.
Custom Manufacturing Options
- Custom inner diameter, outer diameter, and groove width.
- Material options including natural rubber, SBR, EPDM, NBR, and silicone.
- Custom color and hardness (Shore A) on request.
- Bulk packaging and OEM private labeling.
FAQ
What are standard double-sided rubber grommets used for?
Standard double-sided rubber grommets are used to protect wires, cables, tubes or rods passing through panel openings. They help isolate sharp panel edges, reduce abrasion and support cleaner assembly in electrical cabinets, machinery housings, automotive parts and industrial enclosures.
Can the dimensions be customized?
Yes. Outer diameter, inner diameter, panel hole diameter, groove width, flange profile, overall height and wall thickness can be customized according to drawings or samples. Unsupported dimensions should not be assumed because panel fit and retention depend on confirmed size data.
How should buyers select the rubber material?
Material selection depends on temperature, oil exposure, ozone, weathering, electrical environment, abrasion risk and contact media. Buyers should provide the application environment, panel material, cable or tube material and operating conditions so the rubber compound can be reviewed correctly.
Are samples available?
Samples are available upon request. Sample preparation depends on the grommet size, rubber material, hardness, tooling status, color requirement and inspection criteria. A drawing, 3D model, panel specification or physical sample helps confirm the correct grommet structure before bulk production.
Is tooling required for custom double-sided rubber grommets?
Tooling is usually required for molded grommets with custom profiles, non-standard groove widths or specific flange structures. Tooling cost depends on the drawing and product structure. Existing standard size options can be reviewed after receiving the required dimensions.
What is the MOQ?
MOQ depends on size, material, color, tooling status, packaging method and order quantity per specification. Standard or existing-tooling grommets may have different MOQ requirements from fully custom molded grommets. Please contact us with drawings or samples for details.
Request a Custom Quote
Send your standard double-sided rubber grommet drawing, 3D model, panel specification or physical sample for review. Please include panel hole diameter, panel thickness, inner diameter, outer diameter, material, hardness, color, quantity, annual demand, application environment and packaging requirements.
