CUSTOM RUBBER & SILICONE MANUFACTURING

Hot-selling wear-resistant rubber NBR washer/molded rubber mounts

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 rubber NBR washer can be custom molded for a mounting interface where its geometry and material need to suit the surrounding hardware. Define the inner opening, supported outer area and working thickness around the assembled joint. The part should reach its intended position without being dragged sideways as the hardware is tightened.

Observe whether adjoining parts move against the rubber during use. Local rubbing can produce wear at a specific edge even when most of the washer remains intact. Check the alignment and support at that region rather than treating a thicker replacement as an automatic solution.

Select the finished NBR formulation for the actual fluids, temperature and mechanical conditions. For mount applications, evaluate the assembly under its intended load and movement. During maintenance, inspect the hidden faces for cuts, compression changes or a polished band indicating repeated contact. Clean the mating parts before fitting a replacement, and preserve the specified joint geometry so the new washer is not forced into the same damaging position.

Material options
NBR compound options, customized alongside the profile and contact conditions.
Hardness selection
Solid rubber options: 30–90 Shore A. For mount applications, evaluate the assembly under its intended load and movement.
Custom geometry
Define the inner opening, supported outer area and working thickness around the assembled joint.
Fit evaluation
Select the finished NBR formulation for the actual fluids, temperature and mechanical conditions.
Color & OEM
Custom colors; part identification clear of mounting seats and loaded faces.

Photos illustrate structure or material appearance only. A rubber NBR washer can be custom molded for a mounting interface where its geometry and material need to suit the surrounding hardware. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

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.

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Request a Custom Quote

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