O-ring Groove Dimensions

O-ring Groove Dimensions

rubber sealsDynamic Sealing Applications

Orings are often used as rod or piston seals in hydraulic and pneumatic cylinders. The o-ring must be installed in a rectangular groove with the correct radial squeeze (see table 1 below).


Static Sealing Applications

O-Rings may also be used as static seals, in flange connections, covers, pins, bolts, etc. Correct gland dimensions are important for effective sealing (see table 2 below).

Industrial Reciprocating O-ring Glands

Static Radial Seals

Table 1
O-Ring
Dash No.
W
O-Ring
Cross
Section
C
Gland
Depth
Squeeze
G
Groove
Width
R
Groove
Radius
Inches
%
-008 to -050 .070 ± .003 .055 - .057 .010 - .018 15 - 25 .090 / .100 .005 - .015
-102 to -178 .103 ± .003 .087 - .090 .010 - .019 10.18 .140 / .150 .005 - .020
-201 to -278 .139 ± .004 .119 - .123 .012 - .024 9 - 17 .190 / .200 .005 - .030
-309 to -380 .210 ± .005 .183 - .188 .017 - .032 8.5 - 15 .280 / .290 .005 - .050
-425 to -452 .275 ± .006 .234 - .240 .029 - .047 10.5 - 17 .380 / .390 .005 - .060



Industrial Static Seal O-Ring Glands

Axial Seals

Table 2
O-Ring
Dash No.
W
O-Ring
Cross
Section
C
Gland Depth
Squeeze
G
Groove
Width
R
Groove
Radius
Radial
Axial
Radial
Axial
Inches
%
Inches
%
-008 to -050 .070 ± .003 .049 - .055 .045 - .050 .012 - .014 18 - 19 .017 - .028 25.5 - 38.5 .090 / .100 .005 - .015
-102 to -178 .103 ± .003 .080 - .086 .072 - .080 .014 - .026 13.5 - 25 .020 - .034 20 - 32 .140 / .150 .005 - .020
-201 to -278 .139 ± .004 .112 - .118 .100 - .110 .017 - .031 12.5 - 29 .025 - .043 18.5 - 30 .190 / .200 .005 - .030
-309 to -380 .210 ± .005 .176 - .184 .165 - .175 .021 - .039 10 - 18 .030 - .050 14.5 - 23 .280 / .290 .005 - .050
-425 to -452 .275 ± .006 .225 - .235 .220 - .230 .034 - .056 12.5 - 20 .039 - .061 14.5 - 21.5 .380 / .390 .005 - .060

O-Ring Ordering information...


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