Tolerances Achieved at Walker Rubber
Table 1 shows the rubber extrusion tolerances that we work to here at Walker Rubber. These tolerances have been taken from the international standard ISO 3302-1:2014 Rubber — Tolerances for products — Part 1: Dimensional tolerances.
Table 1: Extruded rubber tolerances – ISO 3302.
| Nominal dimensions (mm) | E1, ± (mm) | E2, ± (mm) | E3, ± (mm) | |
|---|---|---|---|---|
| Above | Up to and including | |||
| 0 | 1.5 | 0.15 | 0.25 | 0.40 |
| 1.5 | 2.5 | 0.20 | 0.36 | 0.50 |
| 2.5 | 4.0 | 0.25 | 0.40 | 0.70 |
| 4.0 | 6.3 | 0.36 | 0.50 | 0.80 |
| 6.3 | 10 | 0.40 | 0.70 | 1.00 |
| 10 | 16 | 0.50 | 0.80 | 1.30 |
| 16 | 25 | 0.70 | 1.00 | 1.60 |
| 25 | 40 | 0.80 | 1.30 | 2.00 |
| 40 | 63 | 1.00 | 1.60 | 2.50 |
| 63 | 100 | 1.30 | 2.00 | 3.20 |
| 100 | - | 1.30% | 2.00% | 3.20% |