Tolerances Achieved at Walker Rubber

Table 1 shows the rubber moulding 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: Moulded rubber tolerances – ISO 3302.
Nominal dimension (mm) M1, ± (mm) M2, ± (mm) M3, ± (mm) M4, ± (mm)
Over Up to and including F C F C F C F & 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 2.00
10 160 0.40 0.50 0.70 0.80 1.30 2.00 2.50
160 - 0.3% 0.4% 0.5% 0.7% 0.8% 1.3% 1.5%

F = Fixed dimensions; dimensions created by features on the same part of the tool

C = Closure dimensions; dimensions that are created across two mating parts of a tool and therefore more prone to variation.

Contact Us