Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Hemispherical rubber mount/Buna-N rubber feet for industrial use
CUSTOM RUBBER & SILICONE MANUFACTURING
Hemispherical rubber mount/Buna-N rubber feet for industrial use
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 hemispherical rubber mount presents a rounded outer contact surface rather than a flat pad. Buna-N is identified for this industrial foot version, with dimensions customized around the assembly. The dome shape influences where contact begins and how the working area changes as the rubber is loaded.
The mating surface should meet the intended region of the dome. Contact close to one side may push the mount differently from a centered approach. Consider the mounting seat and the direction of loading together, particularly where the component can move sideways. The surrounding hardware needs to leave the working surface exposed without cutting into the rubber as it deforms.
For a support application, assess the installed height under the actual equipment rather than using the unloaded dome height as the final stand-off. If several feet are used, inspect their contact together so that the equipment remains stable. The rounded shape does not automatically compensate for an uneven base or an unsuitable mounting pattern.
Select the compound for the local environment and keep abrasive particles away from the contact surface. Uneven flattening or wear can indicate off-center loading. Inspect the seat and adjoining component when replacing the mount, preserving the intended dome geometry rather than substituting a flat part solely because it has a similar diameter.
- 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: Consider the mounting seat and the direction of loading together, particularly where the component can move sideways.
- Custom profile & fit
- Buna-N is identified for this industrial foot version, with dimensions customized around the assembly.
- Assembly considerations
- For a support application, assess the installed height under the actual equipment rather than using the unloaded dome height as the final stand-off.
- Design check
- Select the compound for the local environment and keep abrasive particles away from the contact surface.
Photos illustrate structure or material only. The dome shape influences where contact begins and how the working area changes as the rubber is loaded. 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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