Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Protective rubber bumper for chair custom rubber feet
CUSTOM RUBBER & SILICONE MANUFACTURING
Protective rubber bumper for chair custom rubber 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 rubber bumper for chair applications adds a flexible contact where the chair needs protection from a hard surface or another component. Its position should reflect whether it acts as a resting foot or an occasional contact stop. Those roles create different loads and should not be treated as interchangeable merely because the molded parts look similar.
For a resting contact, assess the complete set and the chair's base geometry. A bumper fitted at a moving contact point instead needs clearance through the chair's relevant motion so that it meets the intended surface without catching an edge. The attachment arrangement should retain the piece under those specific conditions.
Inspect the assembled chair for stable resting and unobstructed movement as applicable. Keep contact faces clear of abrasive debris and check for a loose fixing or shifted pad after relocation. If a replacement changes a support height, review the whole chair rather than assuming that a secure individual fit preserves the original balance.
- 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: A rubber bumper for chair applications adds a flexible contact where the chair needs protection from a hard surface or another component.
- Custom profile & fit
- For a resting contact, assess the complete set and the chair's base geometry.
- Assembly considerations
- Inspect the assembled chair for stable resting and unobstructed movement as applicable.
- Design check
- Keep contact faces clear of abrasive debris and check for a loose fixing or shifted pad after relocation.
Photos illustrate structure or material only. A bumper fitted at a moving contact point instead needs clearance through the chair's relevant motion so that it meets the intended surface without catching an edge. 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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