Custom manufacturing example · Oil seal ring rubber part for auto mechanical seal

CUSTOM RUBBER & SILICONE MANUFACTURING

Oil seal ring rubber part for auto mechanical seal

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

An oil seal ring is a rubber component within an automotive mechanical sealing arrangement. The custom profile needs to match the receiving feature and the way the adjoining parts move or remain stationary. The ring should be selected for the specific joint rather than for automotive use in general.

Identify the actual oil or fluid and the temperature at the seal. The compound must suit those conditions, while the dimensions need to provide the intended contact and clearance. A similar-looking ring from another location may have a different cross section or material even if its overall diameter appears close.

Inspect the groove and mating surfaces before installing the replacement. Keep the ring free of dirt and avoid cutting it on threads or edges as the parts are assembled. Follow the joint's required assembly method so the rubber is not twisted or trapped. After assembly, check the complete mechanism under its intended conditions. If the original seal was damaged, address wear, misalignment, or surface defects that could cause the replacement to fail in the same location.

Material options: Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. Define the rubber grade together with the ring section so matching the outside diameter does not conceal a change in compressed fit.
Custom dimensions: The custom profile needs to match the receiving feature and the way the adjoining parts move or remain stationary.
Fit & assembly: After assembly, check the complete mechanism under its intended conditions.
Use & inspection: If the original seal was damaged, address wear, misalignment, or surface defects that could cause the replacement to fail in the same location.

Photos illustrate structure or material only. A similar-looking ring from another location may have a different cross section or material even if its overall diameter appears close. 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

Define the part

Identify key dimensions, mating surfaces and quantity

Review material & tooling

Agree the compound and manufacturing approach

Evaluate the sample

Review the fit and agreed requirements in the assembly

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.