Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Molded rubber washer/rubber bumper/rubber mounting feet
CUSTOM RUBBER & SILICONE MANUFACTURING
Molded rubber washer/rubber bumper/rubber mounting feet
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
A molded rubber washer can provide a compact support interface beneath a component when its ring geometry matches the mounting arrangement. Unlike a solid foot, the central opening leaves space for a fastener or locating feature. The surrounding rubber must have sufficient supported area for the intended contact, without relying on the hole edge to carry the assembly.
Choose thickness in relation to the installed gap and expected compression. A thicker ring changes the height of the supported part and may require a different fastener length. Where several rings support one device, their positions and compression should keep the base stable rather than allow a corner to sit lower than the others.
Assemble on clean, reasonably even surfaces. Check that tightening has not dragged a washer sideways or trapped it against a sharp bracket edge. If the component rocks after assembly, review the support points and hardware before adding extra rings. Stacking unplanned washers can create an unstable interface and change the fastener engagement without addressing the underlying fit.
- 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: Where several rings support one device, their positions and compression should keep the base stable rather than allow a corner to sit lower than the others.
- Custom profile & fit
- Choose thickness in relation to the installed gap and expected compression.
- Assembly considerations
- Stacking unplanned washers can create an unstable interface and change the fastener engagement without addressing the underlying fit.
- Design check
- Check that tightening has not dragged a washer sideways or trapped it against a sharp bracket edge.
Photos illustrate structure or material only. A thicker ring changes the height of the supported part and may require a different fastener length. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.
FIND THE RIGHT FIT
Rubber Feet Size Catalog
Choose hemispherical, tapered or recessed rubber feet and compare the mounting dimensions. All values are in millimeters. Use the drawing labels for each product; a dash marks a dimension not supplied in the source.
Recessed Rubber Feet
12 sizes for recessed rubber feet, including flat and rounded bases. The Base column identifies the lower-edge style. C is recess depth; the appearance rendering shows a rounded-base example.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | OD | H | A | B | C | Base | Unit |
|---|---|---|---|---|---|---|---|
| RBB7810 | 19 | 7.2 | 4.8 | 9.6 | 3.2 | Flat | mm |
| RBB7809 | 19 | 9.5 | 3.17 | 9.5 | 4 | Flat | mm |
| RBB7811 | 24 | 11 | 6 | 12 | 6 | Flat | mm |
| RBB7812 | 26.5 | 13 | 4.7 | 9.5 | 5 | Flat | mm |
| RBB7813 | 37 | 15 | 6 | 12 | 8 | Flat | mm |
| RBB7818 | 12.7 | 6.35 | 3.1 | 6.35 | 4 | Rounded | mm |
| RBB7817 | 26.5 | 21 | 4.7 | 9.5 | 11 | Rounded | mm |
| RBB7819 | 38 | 38 | 6 | 19 | 9.5 | Rounded | mm |
| RBB7820 | 38 | 38 | 6.5 | 19.5 | 9.5 | Rounded | mm |
| RBB7821 | 41 | 18 | 8.3 | 9.5 | 6 | Rounded | mm |
| RBB2101 | 12.7 | 9.53 | 3.97 | 7.94 | 4 | Rounded | mm |
| RBB2102 | 15 | 4 | 3 | 6 | 2 | Rounded | mm |
Tapered Rubber Feet
83 sizes for tapered rubber feet. C is recess depth and D is bottom outside diameter. A dash means that dimension was not supplied; match all available dimensions before selecting a size.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | OD | H | A | B | C | D | Unit |
|---|---|---|---|---|---|---|---|
| RBA7801 | 12 | 7 | 3 | 6 | 5.4 | — | mm |
| RBA7826 | 15.88 | 12.7 | 3.97 | 7.94 | 6.35 | — | mm |
| RBA7827 | 19.05 | 14.29 | 4.76 | 9.53 | 6.35 | — | mm |
| RBA7828 | 22.23 | 12.7 | 4.76 | 9.53 | 10.32 | — | mm |
| RBA7829 | 23.81 | 15.88 | 5.56 | 11.11 | 11.11 | — | mm |
| RBA7802 | 24 | 16 | 6 | 12 | 8 | — | mm |
| RBA7803 | 25 | 15 | 4 | 6 | 6 | — | mm |
| RBA7830 | 26.99 | 21.43 | 4.76 | 9.53 | 11.11 | — | mm |
| RBA7805 | 34 | 19 | 4.5 | 9 | 9 | — | mm |
| RBA7808 | 38 | 22.5 | 5 | 12 | 13 | — | mm |
| RBA7806 | 38 | 24 | 5 | 12 | 13 | — | mm |
| RBA7807 | 38 | 30 | 5.5 | 12 | 19 | — | mm |
| RBA1001 | 10.5 | 4 | 3 | 6 | — | 9 | mm |
| RBA1002 | 11 | 6 | 3 | 6 | — | 9 | mm |
| RBA1005 | 12 | 9 | 3 | 6 | — | 8 | mm |
Hemispherical Rubber Bumpers
5 sizes with a curved outer profile and recessed mounting hole. C is the recess depth.
DIMENSION GUIDE
PRODUCT APPEARANCE
| P/N | OD | H | A | B | C | Unit |
|---|---|---|---|---|---|---|
| RBD7822 | 15 | 4.5 | 3.75 | 6.7 | 2 | mm |
| RBD7823 | 23.7 | 10 | 4 | 7 | 7 | mm |
| RBD7825 | 30 | 12 | 8 | 10 | 6 | mm |
| RBD7824 | 30 | 16 | 8 | 10 | 10 | mm |
| RBD4105 | 41 | 18 | 8.3 | 9.5 | 6 | mm |
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
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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