Tolerance Data: English Units

Standard Extruded Cross Sectional Tolerances

RMA Class		1 High Precision	2 Precision	3 Commercial
Drawing Designation		E1	E2	E3
Dimensions (mm)
Above	Up to	+/-	+/-	+/-
0	0.06	0.006	0.01	0.015
0.06	0.1	0.008	0.014	0.02
0.1	0.16	0.01	0.016	0.027
0.16	0.25	0.014	0.02	0.031
0.25	0.39	0.016	0.027	0.039
0.39	0.63	0.02	0.031	0.051
0.63	0.98	0.027	0.039	0.063
0.98	1.57	0.031	0.051	0.079
1.57	2.48	0.039	0.063	0.098
2.48	3.94	0.051	0.079	0.126

 

Cut Length Tolerances for Unspliced Extrusion

RMA Class		1 High Precision	2 Precision	3 Commercial
Drawing Designation		L1	L2	L3
Dimensions (mm)
Above	Up To	+/-	+/-	+/-
0	1.6	0.03	0.04	0.06
1.6	2.5	0.03	0.05	0.08
2.5	4	0.04	0.06	0.1
4	6.3	0.05	0.08	0.13
6.3	10	0.06	0.1	0.16
10	16	0.08	0.13	0.2
16	25	0.1	0.16	0.25
25	40	0.13	0.2	0.4
40	63	0.16	0.25	0.5
63	100	0.2	0.4	0.63
100	160	0.25	50	0.8
160		0.16%	0.32%	0.50%

Tolerance Tables are courtesy of the Rubber Manufacturers Association (RMA).
For more information, please visit their web site at www.rma.org.

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