Silicone Rubber Right Products Silicone Rubber - Molded, Extruded, Die-Cut Products Silicone Rubber Molding
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RMA TOLERANCES FOR MOLDED PRODUCTS
 
   
Standard Dimensional Tolerance Table - Molded Rubber Products
Drawing Designation  "A1" High Precision
Size
 (Millimeters)

Fixed

 Closure   Size (Inches) Fixed

Closure
Above Incl.
0 10
10 16
16 25
25 40
40 63
63 100
100 160
 
± .10
± .13
± .16
± .20
± .25
± .32
± .40
 
± .13
± .16
± .20
± .25
± .32
± .40
± .50
 
Above Incl.
0 .40
.40 .63
.63 1.00
1.00 1.60
1.60 2.50
2.50 4.00
4.00 6.30
 
± .004
± .005
± .006
± .008
± .010
± .013
± .016
 
± .005
± .006
± .008
± .010
± .013
± .016
± .020

Standard Dimensional Tolerance Table - Molded Rubber Products
Drawing Designation  "A2" Precision
Size
 (Millimeters)

Fixed

 Closure   Size (Inches) Fixed

Closure
Above Incl.
0 10
10 16
16 25
25 40
40 63
63 100
100 160
160 & over multiply by
 
± .16
± .20
± .25
± .32
± .40
± .50
± .63
.004
 
± .20
± .25
± .32
± .40
± .50
± .63
± .80
.005
 
Above Incl.
0 .40
.40 .63
.63 1.00
1.00 1.60
1.60 2.50
2.50 4.00
4.00 6.30
6.30 & over multiply by
 
± .006
± .008
± .010
± .013
± .016
± .020
± .025
.004
 
± .008
± .010
± .013
± .016
± .020
± .025
± .032
 .005

Standard Dimensional Tolerance Table - Molded Rubber Products
Drawing Designation  "A3" Commercial
Size
 (Millimeters)

Fixed

 Closure   Size (Inches) Fixed

Closure
Above Incl.
0 10
10 16
16 25
25 40
40 63
63 100
100 160
160 & over multiply by
 
± .20
± .25
± .32
± .40
± .50
± .63
± .80
.005
 
± .32
± .40
± .50
± .63
± .80
± 1.00
± 1.25
.008
 
Above Incl.
0 .40
.40 .63
.63 1.00
1.00 1.60
1.60 2.50
2.50 4.00
4.00 6.30
6.30 & over multiply by
 
± .008
± .010
± .013
± .016
± .020
± .025
± .032
.005
 
± .013
± .016
± .020
± .025
± .032
± .040
± .050
 .008

Standard Dimensional Tolerance Table - Molded Rubber Products
Drawing Designation  "A4" Basic

Size

 (Millimeters)

Fixed

 Closure   Size (Inches) Fixed

Closure
Above Incl.
0 10
10 16
16 25
25 40
40 63
63 100
100 160
160 & over multiply by
 
± .32
± .40
± .50
± .63
± .80
± 1.00
± 1.25
.008
 
± .80
± .90
± 1.00
± 1.12
± 1.25
± 1.40
± 1.60
.010
 
Above Incl.
0 .40
.40 .63
.63 1.00
1.00 1.60
1.60 2.50
2.50 4.00
4.00 6.30
6.30 & over multiply by
 
± .013
± .016
± .020
± .025
± .032
± .040
± .050
.008
 
± .032
± .036
± .040
± .045
± .050
± .056
± .063
 .010

 
Why use Silicone Rubber?
Typical Properties for Silicone
RMA Tolerances for Molded Products
RMA Tolerances for Extruded Products
RMA Tolerances for Cutting to Length Extrusions
General Compatibility Chart for Various Rubber Materials

 

 

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