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Acushnet O-Ring Products

O-Ring Design Criteria

Recommended Tolerances and Clearances For Industrial O-Ring Installations

AS568A
DASH
NOS.		 A
TOLE-
RANCE		 B
TOLE-
RANCE		 D
DIAMETRICAL CLEARANCE		 G
+.010, -.000		 R
RADIUS
RECIPROCATING
& STATIC SEALS		 ROTARY
SEALS		 NO
BACK
UP 		ONE
BACK
UP 		TWO
BACK
UPS

Inches
-004-012 +.000
-.001		 +.000
-.001		 .002
to
.004		 .012
to
.016		 .094 .149 .207 .005
to
.015
-013-050
-102-129		     .002
to
.005		 .141 .183 .245
-130-178
-201-284		 +.002
-.000		 +.000
-.002		 .002
to
.006		 .016
to
.020		 .188 .235 .304 .010
to
.025
-309-395     .003
to
.007		 .281 .334 .424 .020
to
.030
-425-475 +.003
-.000		 +.000
-.003		 .004
to
.010

 .375 .475 .579
Millimeters
-004-012 +.000
-.0254		 +.000
-.0254		 .0508
to
.1016		 .305
to
.406		 2.388 3.785 5.258 .127
to
.381
-013-050
-102-129		     .0508
to
.1270		 3.581 4.648 6.223
-130-178
-201-284		 +.0508
-.000		 +.000
-.0508		 .0508
to
.1524		 .406
to
.508		 4.775 5.976 7.772 .254
to
.635
-309-395     .0762
to
.1778		 7.137 8.484 10.770 .508
to
.762
-425-475 +.0762
-.000		 +.000
-.0762		 .1016
to
.254		 9.525 12.065 14.707

 

Common Oring Elastomers Oring Application Design - Sealing Considerations Oring Application Design - Dimensions Fluorocarbon and EPDM material specifications Silicone, Nitrile and Neoprene material specifications

 

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