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It is often a simple but crucial question as to whether and with what effort a product can be manufactured. We would be happy to support you in realizing your project. If you have any questions about the company, material selection or production-friendly design, we are available to you at any time. Simply write us a message using our online contact form or to info@weha-gummi.de or call us at +49 (0)30 815 10 30.
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Storage of rubber/elastomers
The storage regulations are summarized in DIN 7716. Here are the most important points:
- Properly stored vulcanized elastomers generally retain their properties for several years without any significant change.
- UV light, heat, ozone, oxygen, moisture, media (e.g. solvents, oils) or mechanical stress can lead to changes in properties or shape.
- Storage should be dry, cool, low-dust and moderately ventilated.
- The storage temperature should be between -10°C and +15°C.
- Storage should be carried out separately from media such as fuels, fats, oils, acids or solvents.
We would be happy to advise you if you have any specific questions.
Tolerances for rubber molded parts
| Nominal size | Tolerance class M1 | Tolerance class M2 | Tolerance class M3 | Tolerance class M4 | ||||
|---|---|---|---|---|---|---|---|---|
| over | to | F | C | F | C | F | C | F and C |
| 0 | 4,0 | ± 0,08 | ± 0,10 | ± 0,10 | ± 0,15 | ± 0,25 | ± 0,40 | ± 0,50 |
| 4,0 | 6,3 | ± 0,10 | ± 0,12 | ± 0,15 | ± 0,20 | ± 0,25 | ± 0,40 | ± 0,50 |
| 6,3 | 10 | ± 0,10 | ± 0,15 | ± 0,20 | ± 0,20 | ± 0,30 | ± 0,50 | ± 0,70 |
| 10 | 16 | ± 0,15 | ± 0,20 | ± 0,20 | ± 0,25 | ± 0,40 | ± 0,60 | ± 0,80 |
| 16 | 25 | ± 0,20 | ± 0,20 | ± 0,25 | ± 0,35 | ± 0,50 | ± 0,80 | ± 1,00 |
| 25 | 40 | ± 0,20 | ± 0,25 | ± 0,35 | ± 0,40 | ± 0,60 | ± 1,00 | ± 1,30 |
| 40 | 63 | ± 0,25 | ± 0,35 | ± 0,40 | ± 0,50 | ± 0,80 | ± 1,30 | ± 1,60 |
| 63 | 100 | ± 0,35 | ± 0,40 | ± 0,50 | ± 0,70 | ± 1,00 | ± 1,60 | ± 2,0 |
| 100 | 160 | ± 0,40 | ± 0,50 | ± 0,70 | ± 0,80 | ± 1,30 | ± 2,0 | ± 2,5 |
| 160 | - | ± 0,3% | ± 0,4% | ± 0,5% | ± 0,7% | ± 0,8% | ± 1,3% | ± 1,5% |
Dimensions in mm unless otherwise stated
F = form-related dimensions
C = dimensions tied to the form fit
Further information DIN ISO 3302-1
Data exchange
Do you have a specific question? We can provide you with targeted advice via data exchange.
Data exchange via FTP or email in the formats:
- STEP
- IGES
- DWG
CAD Systems:
- SolidWorks
- AutoCAD
- AutoVue (Viewer)