Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
Flame-retardant oval grommets are molded rubber components for cable routing, panel hole protection, edge isolation and electrical equipment assembly. Overall length, overall width, inner opening, panel hole fit, groove width, flame-retardant compound, Shore A hardness, color, tolerance and packaging can be customized according to drawings or samples.
The flame-retardant oval grommet is a molded rubber component used to protect cables, wires, tubes or rods passing through oval panel openings. Its oval profile supports non-round routing paths and edge isolation. Dimensions, rubber material, flame-retardant requirement, Shore A hardness, color, panel fit and packaging can be customized according to drawings or samples.
Flame-retardant Oval Grommet — RoHS Certified Double-Sided Rubber Seal for Cable Slots
A flame-retardant oval grommet is a molded rubber insert with an elongated oval (long-oval) shape, designed to line drilled slot-shaped panel openings and protect wire bundles, flat cables, or multiple cords passing through a single elongated hole. This style uses a double-sided groove construction with a dust-proof film layer, and is commonly manufactured to RoHS environmental compliance for use in electronics and appliance applications.
Key Specifications
| Parameter | Typical Specification |
|---|---|
| Shape | Long-oval (elongated oval) |
| Certification | RoHS environmental certified |
| Construction | Double-sided groove, with dust-proof film |
| Material | Flame-retardant rubber |
| Dimension Reference | A/B = inner opening (long/short axis), C/D = drilled panel hole (long/short axis), E = overall inner length, F = overall outer length, G = groove width, H = total thickness |
| Size Range | Inner opening from 13×27 mm up to 40×110 mm |
| Measurement Note | All dimensions are manually measured; actual product prevails in case of slight variance |
What Is an Oval Grommet?
An oval grommet is a rubber insert shaped like an elongated ring, used to seal and protect wire bundles or multiple cables passing through a slot-shaped rather than round drilled hole. The double-sided groove design allows the grommet to seat securely into the panel from either face, while the dust-proof film adds an extra layer of protection against debris and moisture entering the enclosure. Flame-retardant versions use a rubber compound formulated to resist ignition and slow the spread of fire, which is an important safety consideration in electrical panels and appliance housings.
Full Size Chart
| Spec (Φ) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G Groove Width (mm) | H Total Thickness (mm) | Pieces/Pack |
|---|---|---|---|---|---|---|---|---|---|
| 13×27 | 10 | 25 | 13 | 27 | 15 | 30 | 1.5 | 10 | 1000 |
| 20×35 | 15 | 30 | 20 | 35 | 15 | 40 | 2 | 9 | 500 |
| 20×44 | 17 | 42 | 20 | 44 | 23 | 48 | 3 | 10 | 500 |
| 20×45 | 16 | 42 | 20 | 45 | 25 | 51 | 2 | 9 | 500 |
| 20×50 | 16 | 42 | 20 | 50 | 25 | 51 | 2 | 9 | 500 |
| 23×46 | 22 | 44 | 23 | 46 | 30 | 52 | 2 | 8 | 500 |
| 25×40 | 21 | 37 | 25 | 40 | 30 | 45 | 2 | 9 | 500 |
| 25×60 | 20 | 54 | 25 | 60 | 32 | 66 | 2.5 | 7.8 | 500 |
| 26×55 | 23 | 54 | 26 | 55 | 32 | 60 | 2 | 8 | 500 |
| 30×85 | 24 | 78 | 30 | 85 | 37 | 91 | 2 | 11 | 100 |
| 35×75 | 31 | 70 | 35 | 75 | 37 | 80 | 2 | 8 | 100 |
| 37×75 | 29 | 67 | 37 | 75 | 46 | 84 | 2 | 11 | 100 |
| 38×85 | 35 | 80 | 38 | 85 | 48 | 93 | 2 | 10 | 100 |
| 40×83 | 33 | 77 | 40 | 83 | 46 | 90 | 3 | 11 | 100 |
| 50×75 | 45 | 50 | 50 | 75 | 46 | 90 | 3 | 14 | 100 |
| 35×100 | 26 | 90 | 35 | 100 | 41 | 105 | 2.5 | 9.5 | 100 |
| 40×110 | 26 | 100 | 40 | 110 | 48 | 118 | 2.5 | 9.5 | 100 |
Note: A and B refer to the inner opening dimensions, C and D refer to the drilled panel hole dimensions, G is groove width, H is total product thickness. All dimensions are manually measured and may have slight variance; actual product should be used as the final reference.
Key Features
- Flame-retardant rubber compound for improved fire safety in electrical applications.
- RoHS certified for environmental and hazardous substance compliance.
- Double-sided groove design allows secure seating from either panel face.
- Built-in dust-proof film adds extra protection against debris and moisture.
- Elongated oval shape ideal for cable bundles or multiple wires through one slot.
- Wide size range from small 13×27 mm openings up to large 40×110 mm openings.
Oval vs Round Grommet
| Type | Best For | Notes |
|---|---|---|
| Oval/Long-Oval Grommet | Slot-shaped openings, cable bundles | Elongated shape fits wider multi-cable slots |
| Round Grommet | Standard circular drilled holes | Best for single cable or pipe pass-through |
| Double-Sided Design | Thin panels, either-side mounting | Groove on both sides of the flange |
Common Applications
- Electrical cabinets and control panels with slot-shaped cable openings.
- Appliance housings requiring flame-retardant certified components.
- Server and networking equipment with cable bundle pass-throughs.
- Automotive and marine wiring harness slot protection.
- General electronics manufacturing where RoHS compliance is required.
Sizing and Selection Guide
Selection should begin with dimensions C and D, the drilled panel slot size, matched against the grommet’s outer profile to ensure a proper seated fit. Dimensions A and B represent the inner opening through which the cable bundle passes, which should be checked against the diameter or width of the wires being routed. Dimension H, the total thickness, should be compared to the panel thickness to confirm the double-sided groove grips correctly on both faces.
Custom Manufacturing Options
- Custom inner and outer oval dimensions beyond the standard chart.
- Flame-retardant grade selection (UL94 V-0, V-2, or custom rating).
- RoHS and REACH compliant material certification.
- Custom dust-proof film thickness and groove width.
- OEM branding and private-label packaging.
FAQ
What is a flame-retardant oval grommet used for?
A flame-retardant oval grommet is used to protect cables, wires, tubes or components passing through oval panel openings. It helps reduce abrasion, improve cable routing and support electrical equipment assembly where flame-retardant material requirements may apply.
Can the oval grommet dimensions be customized?
Yes. Overall length, overall width, inner opening size, panel hole fit, groove width, wall thickness and flange profile can be customized according to drawings or samples. Unsupported dimensions should not be assumed because installation fit depends on confirmed size data.
Does flame-retardant mean the product has a fixed UL94 rating?
No fixed UL94 rating should be assumed unless it is confirmed by material selection and documentation. Buyers should provide the required flame-retardant standard, rating level and test documentation requirements before quotation, sampling or batch production.
How should buyers select the rubber material?
Material selection depends on flame-retardant requirements, operating temperature, flexibility, compression, ozone exposure, electrical environment and any contact media. Buyers should provide the application environment and required documentation so the compound can be reviewed correctly.
Is tooling required for a custom flame-retardant oval grommet?
Tooling is usually required for molded oval grommets with custom geometry, non-standard openings or specific groove structures. Tooling cost depends on the drawing and product structure. Existing tooling options can be reviewed after receiving the required dimensions.
Are samples available before bulk production?
Samples are available upon request. Sample preparation depends on the grommet size, flame-retardant compound, hardness, color, tooling status and inspection requirements. A drawing, 3D model, panel specification or physical sample helps confirm installation fit before batch production.
Request a Custom Quote
Send your flame-retardant oval grommet drawing, 3D model, panel specification or physical sample for review. Please include panel hole size, panel thickness, cable opening, material requirement, flame-retardant rating, hardness, color, quantity, annual demand and packaging requirements.
