Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Rubber ring waterproof dustproof gasket NBR o ring oil seal
CUSTOM RUBBER & SILICONE MANUFACTURING
Rubber ring waterproof dustproof gasket NBR o ring oil 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 O ring creates a sealing contact when installed in a suitably designed mating arrangement. The ring dimensions and the surrounding groove work together to control its compression and location. Selecting a ring only by whether it can stretch around a component leaves those essential details unresolved.
For an oil-sealing application, identify the actual fluid and operating conditions before choosing the NBR formulation. Compatibility should not be generalized to every oil or chemical. The joint geometry must also suit whether the contact remains stationary or experiences movement, since installation and working demands differ.
Inspect the groove and entry path for edges that could nick the ring. Fit it without twisting or trapping debris, and check that the mating components close without displacing it. Waterproof or dustproof performance belongs to the complete sealed joint and must be evaluated accordingly. When a connection is opened for service, examine the ring for flattening, cuts, or swelling, and investigate the underlying fit or exposure if similar damage recurs after replacement.
- Material options
- NBR. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Rubber: 30–90 Shore A. The joint geometry must also suit whether the contact remains stationary or experiences movement, since installation and working demands differ.
- Custom dimensions
- The ring dimensions and the surrounding groove work together to control its compression and location.
- Fit & assembly
- Fit it without twisting or trapping debris, and check that the mating components close without displacing it.
- Use & inspection
- When a connection is opened for service, examine the ring for flattening, cuts, or swelling, and investigate the underlying fit or exposure if similar damage recurs after replacement.
Photos illustrate structure or material only. The joint geometry must also suit whether the contact remains stationary or experiences movement, since installation and working demands differ. 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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