Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Customized waterproof silicone rubber cable grommet
CUSTOM RUBBER & SILICONE MANUFACTURING
Customized waterproof silicone rubber cable grommet
A custom component for your assembly.
Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.
- Factory direct
- Made to order
- Drawing & sample support
Share the part, its application and your estimated quantity.
Customize the fit, material and finish
Material & hardness
Selected for the contact, temperature and movement
Color & finish
Define the visible surfaces and intended color
Shape & dimensions
Develop holes, lips and walls around the mating parts
Mounting & fit
Match the attachment and installation method
Product Overview
A silicone rubber cable grommet can be custom molded around the dimensions of a cable entry. Its shape links the outside profile that fits the panel with the inside passage that meets the cable. For an entry intended to resist water, the jacket geometry is an important starting point.
Use the actual outside shape of the cable rather than assuming that every jacket is perfectly round. Surface ribs, a flat profile, or a change near a connector can affect how the rubber meets it. The contact area should lie on the intended jacket section, with enough length available for the cable to follow its normal route.
The enclosure interface needs equal attention. A well-matched cable passage cannot close a gap caused by an unsuitable panel groove. Check both interfaces after assembly and evaluate the complete entry under the required exposure conditions. Avoid adding strain during routing, and inspect the grommet whenever a cable is replaced with a different size or construction. Custom fit is useful only when the installed components match the design.
- Material options
- Custom silicone or rubber formulation, with dimensions and color adapted to the mating component.
- Hardness range
- Silicone: 20–80 Shore A; rubber: 30–90 Shore A. Balance insertion flexibility with support around the opening. The contact area should lie on the intended jacket section, with enough length available for the cable to follow its normal route.
- Custom profile & fit
- For an entry intended to resist water, the jacket geometry is an important starting point.
- Assembly considerations
- Custom fit is useful only when the installed components match the design.
- Design check
- Check both interfaces after assembly and evaluate the complete entry under the required exposure conditions.
Photos illustrate structure or material only. The shape links the outside profile that fits the panel with the inside passage that meets the cable. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.
FIND THE RIGHT FIT
Round Grommet Size Catalog
Choose a profile to compare part numbers and dimensions. Inch and metric sizes are listed in separate tables.
Type D Round Grommets in Inches
274 entries for Type D round through-hole grommets. Original fractions are retained, and exactly equivalent standard inch fractions replace decimal values where possible. Other values remain decimal inches.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | ID (C) | GD (A) | OD (D) | GW (B) | T (E) | Unit |
|---|---|---|---|---|---|---|
| RG2001 | 7/64 | 5/32 | 1/4 | 3/32 | 11/64 | inch |
| RG2002 | 7/64 | 5/32 | 1/4 | 3/64 | 11/64 | inch |
| RG2003 | 5/32 | 7/32 | 9/32 | 3/32 | 7/32 | inch |
| RG2004 | 1/8 | 3/16 | 5/16 | 1/16 | 3/16 | inch |
| RG2005 | 9/64 | 1/4 | 5/16 | 5/64 | 1/4 | inch |
| RG2006 | 5/32 | 1/4 | 5/16 | 7/64 | 13/64 | inch |
| RG2007 | 1/8 | 3/16 | 11/32 | 1/16 | 7/32 | inch |
| RG2008 | 1/8 | 1/4 | 11/32 | 1/16 | 7/32 | inch |
| RG2009 | 1/8 | 1/4 | 11/32 | 3/32 | 1/4 | inch |
| RG2010 | 9/64 | 3/16 | 11/32 | 1/16 | 3/16 | inch |
| RG2011 | 3/16 | 9/32 | 13/32 | 3/32 | 5/16 | inch |
| RG2012 | 3/16 | 5/16 | 13/32 | 1/16 | 7/32 | inch |
| RG2013 | 3/16 | 9/32 | 7/16 | 3/32 | 7/32 | inch |
| RG2014 | 3/16 | 5/16 | 7/16 | 1/16 | 3/16 | inch |
| RG2015 | 3/16 | 5/16 | 7/16 | 1/4 | 3/8 | inch |
Type D Round Through-Hole Grommets
866 entries for round panel openings. Compare the outside diameter, inside diameter, panel hole, panel thickness and overall thickness for the required fit.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | OD | ID | GD | GW | T | Unit |
|---|---|---|---|---|---|---|
| RG6-2-4-1 | 6 | 2 | 4 | 1 | 3 | mm |
| RG6-2-4-1.5 | 6 | 2 | 4 | 1.5 | 3.5 | mm |
| RG6-2-4-2 | 6 | 2 | 4 | 2 | 4 | mm |
| RG8-2-6-1 | 8 | 2 | 6 | 1 | 3.4 | mm |
| RG8-2-6-1.5 | 8 | 2 | 6 | 1.5 | 3.9 | mm |
| RG8-2-6-2 | 8 | 2 | 6 | 2 | 4.4 | mm |
| RG8-3-6-1 | 8 | 3 | 6 | 1 | 3.4 | mm |
| RG8-3-6-1.5 | 8 | 3 | 6 | 1.5 | 3.9 | mm |
| RG8-3-6-2 | 8 | 3 | 6 | 2 | 4.4 | mm |
| RG8-4-6-1 | 8 | 4 | 6 | 1 | 3.4 | mm |
| RG8-4-6-1.5 | 8 | 4 | 6 | 1.5 | 3.9 | mm |
| RG8-4-6-2 | 8 | 4 | 6 | 2 | 4.4 | mm |
| RG10-3-7-1 | 10 | 3 | 7 | 1 | 4 | mm |
| RG10-3-7-1.5 | 10 | 3 | 7 | 1.5 | 4.5 | mm |
| RG10-3-7-2 | 10 | 3 | 7 | 2 | 5 | mm |
Type A Round Grommets
98 GRA sizes with a flanged sleeve profile. Compare the inside diameter, groove diameter and sleeve dimensions.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | ID | OD | GD | GW | T | Unit |
|---|---|---|---|---|---|---|
| GRA5000 | 2 | 8 | 5 | 7 | 8.5 | mm |
| GRA5001 | 3 | 8 | 5 | 7 | 8.5 | mm |
| GRA5002 | 3.5 | 9 | 6 | 8 | 9.5 | mm |
| GRA5003 | 3.2 | 8.2 | 6 | 8 | 9 | mm |
| GRA5004 | 3.5 | 11 | 6.8 | 8 | 10 | mm |
| GRA5005 | 4 | 10 | 7 | 8 | 9.5 | mm |
| GRA5006 | 4 | 11.5 | 7.3 | 8 | 10 | mm |
| GRA5007 | 4.5 | 12 | 7.8 | 8 | 10 | mm |
| GRA5008 | 4.5 | 11 | 8 | 8 | 9.5 | mm |
| GRA5009 | 5.5 | 13 | 9 | 8 | 10 | mm |
| GRA5010 | 5 | 12.5 | 8.3 | 8 | 10 | mm |
| GRA5011 | 5 | 13 | 9 | 9 | 11 | mm |
| GRA5012 | 6 | 14 | 10 | 9 | 11 | mm |
| GRA5013 | 7 | 15 | 11 | 10 | 12 | mm |
| GRA5014 | 7.5 | 16 | 12 | 10 | 12 | mm |
Type B Round Grommets
47 RGB sizes with a retaining lip below the mounting groove. Check the groove width and overall thickness for the panel assembly.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | ID | OD | GD | GW | T | Unit |
|---|---|---|---|---|---|---|
| RGB6001 | 2 | 8.5 | 4.6 | 3 | 8 | mm |
| RGB6002 | 2.5 | 9 | 5 | 3 | 7 | mm |
| RGB6003 | 3 | 9.5 | 5.5 | 3 | 7 | mm |
| RGB6004 | 3.5 | 10 | 6 | 4 | 8 | mm |
| RGB6005 | 4 | 10.5 | 6.5 | 4 | 8 | mm |
| RGB6006 | 4.5 | 11 | 7 | 4 | 8 | mm |
| RGB6007 | 5 | 11.5 | 7.5 | 4 | 8 | mm |
| RGB6008 | 5.5 | 12 | 8 | 4 | 8 | mm |
| RGB6009 | 6 | 12.5 | 8.5 | 4 | 8 | mm |
| RGB6010 | 6.2 | 13 | 9 | 5 | 9 | mm |
| RGB6011 | 6.5 | 13.5 | 9.5 | 5 | 9 | mm |
| RGB6012 | 7 | 14 | 10 | 5 | 9 | mm |
| RGB6013 | 7.5 | 14.5 | 10.5 | 5 | 9 | mm |
| RGB6014 | 8 | 15 | 11 | 5 | 9 | mm |
| RGB6015 | 8.5 | 15.5 | 11.5 | 5 | 9 | mm |
Blind-Hole Round Grommets
39 BGA sizes with a closed central membrane. Match dimensions A through E to the section drawing and the panel opening.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | A | B | C | D | E | Unit |
|---|---|---|---|---|---|---|
| BGA1001 | 10 | 12 | 17 | 2.5 | 7.5 | mm |
| BGA1002 | 14 | 16 | 21 | 2.5 | 9.5 | mm |
| BGA1003 | 15 | 20 | 26 | 2 | 9 | mm |
| BGA1004 | 18 | 22 | 28 | 2.5 | 9.5 | mm |
| BGA1005 | 20 | 25 | 33 | 2.5 | 11 | mm |
| BGA1006 | 22 | 27 | 34 | 1.6 | 9 | mm |
| BGA1007 | 22 | 28 | 34 | 2.5 | 10 | mm |
| BGA1008 | 25 | 30 | 40 | 3 | 10 | mm |
| BGA1009 | 24 | 32 | 40 | 2.5 | 11 | mm |
| BGA1010 | 30 | 35 | 45 | 2.5 | 10 | mm |
| BGA1011 | 30 | 38 | 45 | 3 | 12 | mm |
| BGA1012 | 32 | 40 | 47 | 3 | 10.5 | mm |
| BGA1013 | 35 | 42 | 50 | 2.5 | 10.5 | mm |
| BGA1014 | 36 | 47 | 53 | 3 | 10 | mm |
| BGA1015 | 42 | 48 | 58 | 6 | 16 | mm |
Can't find the right size? Contact us for custom dimensions tailored to your requirements.
From part requirements to production
01
Define the part
Identify key dimensions, mating surfaces and quantity
02
Review material & tooling
Agree the compound and manufacturing approach
03
Evaluate the sample
Review the fit and agreed requirements in the assembly
04
Produce & inspect
Manufacture and check against the approved requirements
Review the intended assembly
Material and structure
Consider hardness together with wall thickness and support.
Installation
Check access, mating dimensions and the fitting sequence.
Ordering this custom component
Can the shape be adjusted to my mating parts?
Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.
Which details should be agreed before tooling?
Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.
Can a sample help define the replacement?
A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.
How is the quotation for this part determined?
The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.
DISCUSS THIS COMPONENT
Describe the part you need.
Share the fit, operating conditions and quantity with our manufacturing team.
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