CUSTOM RUBBER & SILICONE MANUFACTURING

Hot-selling flexible rubber protective grommet/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

Vulcanization workshop illustration with green molding presses and blue collection bins

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 flexible rubber cable grommet should settle into its designated opening without remaining stretched or folded after installation. The part's flexibility can assist fitting, but the final profile still needs to match the panel and cable rather than relying on continuous deformation to hold an unsuitable shape.

Develop the retained section and passage around the finished mating dimensions. Select the silicone or other rubber formulation for the entry environment. Include the cable's approach direction and the space available behind the panel when evaluating the profile.

After fitting, inspect both sides where possible and check the cable route in its intended supports. If the rubber remains visibly twisted, remove it and review the orientation or opening geometry before continuing. During maintenance, inspect hidden sections whenever the cable is removed. Replace damaged parts with the designated configuration rather than stretching another flexible ring into the same cutout, since a similar outer appearance can conceal a different groove or passage.

Material options
Custom rubber compound and color, selected for the contact conditions and required geometry.
Hardness range
30–90 Shore A for rubber. Assess the grade against this fit requirement: A flexible rubber protective grommet should settle into its designated opening without remaining stretched or folded after installation.
Custom profile & fit
Include the cable's approach direction and the space available behind the panel when evaluating the profile.
Assembly considerations
After fitting, inspect both sides where possible and check the cable route in its intended supports.
Design check
Select the silicone or other rubber formulation for the entry environment.

Photos illustrate structure or material only. The part's flexibility can assist fitting, but the final profile still needs to match the panel and cable rather than relying on continuous deformation to hold an unsuitable shape. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

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
Type D Round Grommets in Inches: plan view on the left and section view on the right, with labels matching the dimension key.
Profile reference only. Use the dimensions listed for each part number.
PRODUCT APPEARANCE
Generated product visualization of a black rubber Type D grommet with two round flanges, a panel mounting groove and an open central bore.
Illustrative product rendering. Refer to the table for dimensions.
P/NID (C)GD (A)OD (D)GW (B)T (E)Unit
RG20017/645/321/43/3211/64inch
RG20027/645/321/43/6411/64inch
RG20035/327/329/323/327/32inch
RG20041/83/165/161/163/16inch
RG20059/641/45/165/641/4inch
RG20065/321/45/167/6413/64inch
RG20071/83/1611/321/167/32inch
RG20081/81/411/321/167/32inch
RG20091/81/411/323/321/4inch
RG20109/643/1611/321/163/16inch
RG20113/169/3213/323/325/16inch
RG20123/165/1613/321/167/32inch
RG20133/169/327/163/327/32inch
RG20143/165/167/161/163/16inch
RG20153/165/167/161/43/8inch

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

Working conditions

Identify temperature, contact fluids and repeated movement.

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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Send your requirements
and selected drawings

All files and photos you share with us are handled under strict confidentiality procedures and will not be disclosed to any third party.

DISCUSS THIS COMPONENT

Request a Custom Quote

You can also email us directly at [email protected].