Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · High quality oil-proof NBR black rubber round gasket for seal
CUSTOM RUBBER & SILICONE MANUFACTURING
High quality oil-proof NBR black rubber round gasket for 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
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 NBR black rubber round gasket provides a custom sealing element for a circular interface. The inner opening, outside diameter, and thickness should match the mating surfaces and the space available after closure. NBR is the specified material choice for this version, while black is its visible color rather than a separate performance grade.
For contact with oil, define the actual fluid and the conditions in which it reaches the gasket. Temperature and duration of exposure matter alongside the material name. The joint should provide the intended compression around the sealing area without a portion of the rubber being pushed into an unsupported gap. Check alignment before tightening so the central opening remains correctly positioned.
Keep both sealing faces clean during installation. Grit, old gasket fragments, or damage on the mating surface can interrupt contact even when the rubber dimensions are correct. During servicing, inspect for an altered fit or uneven deformation and address the joint condition before replacing the gasket. The complete connection establishes its operating limits.
- Material options
- NBR. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Rubber: 30–90 Shore A. The joint should provide the intended compression around the sealing area without a portion of the rubber being pushed into an unsupported gap.
- Custom dimensions
- The inner opening, outside diameter, and thickness should match the mating surfaces and the space available after closure.
- Fit & assembly
- Check alignment before tightening so the central opening remains correctly positioned.
- Use & inspection
- During servicing, inspect for an altered fit or uneven deformation and address the joint condition before replacing the gasket.
Photos illustrate structure or material only. The inner opening, outside diameter, and thickness should match the mating surfaces and the space available after closure. ETOL directly manufactures custom-shaped silicone and rubber parts 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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