Recommended Tolerances
Below are recommended tolerances for machined and molded rubber seals. This chart is for general information purposes only. Contact a customer service representative to discuss tolerances for your specific product.
Nominal Dimensions | Tolerance (+/-) | ||
---|---|---|---|
From | To | Machined1 | Molded2 |
0.00″ | 0.16” | 0.004″ | 0.006” |
0.17” | 0.25” | 0.005” | 0.008” |
0.26” | 0.39” | 0.006” | 0.008” |
0.40” | 0.63” | 0.008” | 0.010” |
0.64” | 0.98″ | 0.008” | 0.014” |
0.99” | 1.57” | 0.010” | 0.016” |
1.58” | 2.48” | 0.014” | 0.020” |
2.49” | 3.94” | 0.016” | 0.028” |
3.95” | 6.30” | 0.020” | 0.031” |
6.31” | — | 0.4% | 0.7% |
1 Tolerances listed are Class M1 closure tolerances.
2 Tolerances listed are Class M2 closure tolerances.
Source: ISO 3302-1:1996(E) Handbook, Table 1 – Tolerances for rubber products.