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RMA Extrusion Rubber Tolerance Tables

Metric Tolerances

RMA Class	1	2	3
Drawing Designation Dimensions in Millimeters 0.0 to 1.5 1.5 to 2.5 2.5 to 4.0 4.0 to 6.3 6.3 to 10.0 10.0 to 16.0 16.0 to 25.0 25.0 to 40.0 40.0 to 63.0 63.0 to 100.0	High Precision "E1" Tolerance +/-0.15 +/-0.20 +/-0.25 +/-0.35 +/-0.40 +/-0.50 +/-0.70 +/-0.80 +/-1.00 +/-1.30	Precision "E2" Tolerance +/-0.25 +/-0.35 +/-0.40 +/-0.50 +/-0.70 +/-0.80 +/-1.00 +/-1.30 +/-1.60 +/-2.00	Commercial "E3" Tolerance +/-0.40 +/-0.50 +/-0.70 +/-0.80 +/-1.00 +/-1.30 +/-1.60 +/-2.00 +/-2.50 +/-3.20

English Tolerances

RMA Class	1	2	3
Drawing Designation Dimensions in Inches 0.0 to 0.06 0.06 to 0.10 0.10 to 0.16 0.16 to 0.25 0.25 TO 0.39 0.39 to 0.63 0.63 TO 0.98 0.98 to 1.57 1.57 TO 2.48 2.48 to 3.94	High Precision "E1" Tolerance +/-0.006 +/-0.008 +/-0.010 +/-0.014 +/-0.016 +/-0.020 +/-0.027 +/-0.031 +/-0.39 +/-0.051	Precision "E2" Tolerance +/-0.010 +/-0.014 +/-0.016 +/-0.020 +/-0.027 +/-0.031 +/-0.039 +/-0.051 +/-0.063 +/-0.079	Commercial "E3" Tolerance +/-0.015 +/-0.020 +/-0.027 +/-0.031 +/-0.039 +/-0.051 +/-0.063 +/-0.079 +/-0.098 +/-0.126

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