Industrial

RMA Table 13-

Dense Cross-Section Organic/Silicone Class 2 Precision

STANDARDS FOR CROSS-SECTIONAL TOLERANCE TABLE

RMA Class		1 High Precision	2 Precision	3 Commercial
Drawing Designation		E1	E2	E3
Dimensions (in Inches)
Above	Up to
0	0.06	+/-0.006	+/-0.010	+/-0.015
0.06	0.10	+/-0.008	+/-0.014	+/-0.020
0.10	0.16	+/-0.010	+/-0.016	+/-0.027
0.16	0.25	+/-0.014	+/-0.020	+/-0.031
0.25	0.39	+/-0.016	+/-0.027	+/-0.039
0.39	0.63	+/-0.020	+/-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	+/-0.129

RMA Class		1 High Precision	2 Precision	3 Commercial
Drawing Designation		E1	E2	E3
Dimensions (in Millimeters)
Above	Up to
0	1.5	+/-0.15	+/-0.25	+/-0.40
1.5	2.5	+/-0.20	+/-0.35	+/-0.50
2.5	4.0	+/-0.25	+/-0.40	+/-0.70
4.0	6.3	+/-0.35	+/-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

 

Note-

Tolerances on dimensions above 100mm (3.94") should be agreed upon by supplier and user. General Cross-sectional dimensions below 1mm (0.04" are impractical.  In general, softer materials and those requiring a post cure need greater tolerances.