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Custom Molded Rubber
O-rings and Seals
Rubber Bellows, Rubber Boots and Convoluted Boots
Vibration Isolators and Mounts
Formed Rubber Hose
Materials and Elastomers
Due to the number of interacting forces, it is STRONGLY RECOMMENDED THAT YOUR ELASTOMER SELECTION BE RIGOROUSLY TESTED IN THE ACTUAL APPLICATION, performance assumptions must be checked so that you are certain that all variables have been carefully considered
In dynamic radial o-ring applications the o-ring is squeezed radially and subjected to reciprocating motion either intermittent or continuous. Thus o-rings used in these types of applications are subjected to friction between the parts of the gland. The table below lists recommended dimensions for Dynamic Radial o-ring glands by AS-568A o-ring dash numbers. For more information please contact one of our project managers at1.800.227.3539 ext.19
Dynamic Radial O-Ring Gland Design
Dynamic Radial Seal Design
 
Static Radial Seal Design
 
Dynamic Reciprocating Seal Design
 
Static Axial Internal Pressure Seal Design
 
Static Axial External Pressure Seal Design
 
Dynamic Rotary Seal Design
 
Static Crush Seal Design
 
Dovetail Seal Design
Custom Molded Rubber
AS568 -006 through -014 Dynamic Radial Seal Design Guidelines
AS 568
Dash #
A B C D E F G
BORE
DIA.
+.001
-.000
PISTON
DIA.
+.001
-.000
PISTON
GLAND
DIA.
+.001
-.000
ROD
BORE
DIA.
+.001
-.001
ROD
DIA.
+.001
-.000

GLAND
DIA.
+.001
.000

GLAND
WIDTH
+.010
-.000
-6 0.23 0.228 0.12 0.123 0.12 0.23 0.1
-7 0.262 0.26 0.151 0.154 0.151 0.262 0.1
-8 0.294 0.292 0.182 0.185 0.182 0.294 0.1
-9 0.326 0.324 0.214 0.217 0.214 0.326 0.1
-10 0.358 0.356 0.245 0.248 0.245 0.358 0.1
-11 0.421 0.419 0.307 0.31 0.307 0.421 0.1
-12 0.484 0.482 0.37 0.373 0.37 0.484 0.1
-13 0.546 0.544 0.432 0.435 0.432 0.546 0.1
-14 0.609 0.607 0.495 0.498 0.495 0.609 0.1
AS568 -015 through -020 Dynamic Radial Seal Design Guidelines
AS 568
DASH#
A B C D E F G
BORE
DIA.
+.002
-.000
PISTON
DIA.
+.001
-.000
PISTON
GLAND
DIA.
+.002
-.000
ROD
BORE
DIA.
+.002
-.000
ROD
DIA.
+.002
-.000
GLAND
DIA.
+.002
-.000
GLAND
WIDTH
+.010
-.000
-15 0.672 0.67 0.559 0.562 0.559 0.672 0.1
-16 0.736 0.734 0.624 0.627 0.624 0.736 0.1
-17 0.798 0.796 0.686 0.689 0.686 0.798 0.1
-18 0.862 0.86 0.749 0.752 0.749 0.862 0.1
-19 0.925 0.923 0.812 0.815 0.812 0.925 0.1
-20 0.988 0.986 0.875 0.878 0.875 0.988 0.1
AS568 -106 through -111 Dynamic Radial Seal Design Guidelines
AS 568
DASH #
A B C D E F G
BORE
DIA.
+.002
-.000
PISTON
DIA.
+.002
-.000
PISTON
GLAND
DIA.
+.002
-.000
ROD
BORE
DIA.
+.002
-.000
ROD
DIA.
+.002
-.000
GLAND
DIA.
+.002
-.000
GLAND
WIDTH
+.010
-.000
-106 0.351 0.348 0.18 0.184 0.18 0.351 0.135
-107 0.384 0.381 0.212 0.216 0.212 0.384 0.135
-108 0.415 0.412 0.243 0.247 0.243 0.415 0.135
-109 0.479 0.476 0.305 0.309 0.305 0.479 0.135
-110 0.542 0.539 0.368 0.372 0.368 0.542 0.135
-111 0.605 0.602 0.43 0.434 0.43 0.605 0.135
AS568 -112 through -125 Dynamic Radial Seal Design Guidelines
AS 568
DASH #
A B C D E F G
BORE
DIA.
+.002
-.000
PISTON
DIA.
+.001
-.000
PISTON
GLAND
DIA.
+.002
-.000
ROD
BORE
DIA.
+.002
-.000
ROD
DIA.
+.002
-.000
GLAND
DIA.
+.002
-.000
GLAND
WIDTH
+.010
-.000
-112 0.668 0.665 0.493 0.497 0.493 0.668 0.135
-113 0.732 0.729 0.557 0.561 0.557 0.732 0.135
-114 0.796 0.793 0.622 0.626 0.622 0.796 0.135
-115 0.859 0.856 0.684 0.688 0.684 0.859 0.135
-116 0.922 0.919 0.747 0.751 0.747 0.922 0.135
-117 0.986 0.983 0.811 0.815 0.811 0.986 0.135
-118 1.049 1.046 0.874 0.878 0.874 1.049 0.135
-119 1.11 1.107 0.936 0.94 0.936 1.11 0.135
-120 1.174 1.171 0.999 1.003 0.999 1.174 0.135
-121 1.236 1.233 1.061 1.065 1.061 1.236 0.135
-122 1.299 1.296 1.124 1.128 1.124 1.299 0.135
-123 1.363 1.36 1.188 1.192 1.188 1.363 0.135
-124 1.426 1.423 1.251 1.255 1.251 1.426 0.135
-125 1.489 1.486 1.314 1.318 1.314 1.489 0.135
AS568 -202 through -315 Dynamic Radial Seal Design Guidelines
AS 568
DASH #
A B C D E F G
BORE
DIA.
+.002
-.000
PISTON
DIA.
+.002
-.000
PISTON
GLAND
DIA.
+.002
-.000
ROD
BORE
DIA.
+.002
-.000
ROD
DIA.
+.002
-.000
GLAND
DIA.
+.002
-.000
GLAND
WIDTH
+.010
-.000
-202 0.478 0.474 0.24 0.244 0.24 0.478 0.175
-203 0.541 0.537 0.302 0.306 0.302 0.541 0.175
-204 0.605 0.601 0.365 0.369 0.365 0.605 0.175
-205 0.668 0.664 0.427 0.431 0.427 0.668 0.175
-206 0.732 0.728 0.49 0.494 0.49 0.732 0.175
-207 0.795 0.791 0.554 0.558 0.554 0.795 0.175
-208 0.859 0.855 0.619 0.623 0.619 0.859 0.175
-209 0.922 0.918 0.681 0.685 0.681 0.922 0.175
-210 0.986 0.982 0.745 0.749 0.745 0.986 0.175
-211 1.049 1.045 0.808 0.812 0.808 1.049 0.175
-212 1.112 1.108 0.871 0.875 0.871 1.112 0.175
-213 1.175 1.171 0.933 0.937 0.933 1.175 0.175
-214 1.238 1.234 0.996 1 0.996 1.238 0.175
-215 1.299 1.295 1.058 1.062 1.058 1.299 0.175
-216 1.365 1.361 1.123 1.127 1.123 1.365 0.175
-217 1.427 1.423 1.185 1.189 1.185 1.427 0.175
-218 1.489 1.485 1.248 1.252 1.248 1.489 0.175
-219 1.552 1.548 1.311 1.315 1.311 1.552 0.175
-220 1.616 1.612 1.374 1.378 1.374 1.616 0.175
-221 1.678 1.674 1.436 1.44 1.436 1.678 0.175
-222 1.744 1.74 1.502 1.506 1.502 1.744 0.175
-223 1.868 1.864 1.627 1.631 1.627 1.868 0.175
-224 1.994 1.99 1.752 1.756 1.752 1.994 0.175
-225 2.122 2.118 1.881 1.885 1.881 2.122 0.175
-309 0.789 0.784 0.418 0.423 0.418 0.789 0.25
-310 0.853 0.848 0.481 0.486 0.481 0.853 0.25
-311 0.916 0.911 0.545 0.55 0.545 0.916 0.25
-312 0.981 0.976 0.61 0.615 0.61 0.981 0.25
-313 1.044 1.039 0.672 0.677 0.672 1.044 0.25
-314 1.108 1.103 0.736 0.741 0.736 1.108 0.25
-315 1.17 1.165 0.799 0.804 0.799 1.17 0.25
AS568 -316 through -349 Dynamic Radial Seal Design Guidelines
AS 568
DASH #
A B C D E F G
BORE
DIA.
+.002
-.000
PISTON
DIA.
+.002
-.000
PISTON
GLAND
DIA.
+.002
-.000
ROD
BORE
DIA.
+.002
-.000
ROD
DIA.
+.002
-.000
GLAND
DIA.
+.002
-.000
GLAND
WIDTH
+.010
-.000
-316 1.234 1.229 0.862 0.867 0.862 1.234 0.25
-317 1.295 1.29 0.924 0.929 0.924 1.295 0.25
-318 1.359 1.354 0.987 0.992 0.987 1.359 0.25
-319 1.42 1.415 1.049 1.054 1.049 1.42 0.25
-320 1.485 1.48 1.114 1.119 1.114 1.485 0.25
-321 1.548 1.543 1.176 1.181 1.176 1.548 0.25
-322 1.61 1.605 1.239 1.244 1.239 1.61 0.25
-323 1.673 1.668 1.302 1.307 1.302 1.673 0.25
-324 1.737 1.732 1.365 1.37 1.365 1.737 0.25
-325 1.865 1.86 1.493 1.498 1.493 1.865 0.25
-326 1.99 1.985 1.618 1.623 1.618 1.99 0.25
-327 2.114 2.109 1.743 1.748 1.743 2.114 0.25
-328 2.24 2.235 1.869 1.874 1.869 2.24 0.25
-329 2.369 2.364 1.997 2.002 1.997 2.369 0.25
-330 2.493 2.488 2.122 2.127 2.122 2.493 0.25
-331 2.618 2.613 2.247 2.252 2.247 2.618 0.25
-332 2.745 2.74 2.373 2.378 2.373 2.745 0.25
-333 2.871 2.866 2.5 2.505 2.5 2.871 0.25
-334 2.997 2.992 2.625 2.63 2.625 2.997 0.25
-335 3.121 3.116 2.75 2.755 2.75 3.121 0.25
-336 3.247 3.242 2.876 2.881 2.876 3.247 0.25
-337 3.376 3.371 3.005 3.01 3.005 3.376 0.25
-338 3.502 3.497 3.13 3.135 3.13 3.502 0.25
-339 3.626 3.621 3.255 3.26 3.255 3.626 0.25
-340 3.752 3.747 3.381 3.386 3.381 3.752 0.25
-341 3.877 3.872 3.506 3.511 3.506 3.877 0.25
-342 4.007 4.002 3.635 3.64 3.635 4.007 0.25
-343 4.133 4.128 3.761 3.766 3.761 4.133 0.25
-344 4.257 4.252 3.886 3.891 3.886 4.257 0.25
-345 4.382 4.377 4.011 4.016 4.011 4.382 0.25
-346 4.507 4.502 4.136 4.141 4.136 4.507 0.25
-347 4.635 4.63 4.264 4.269 4.264 4.635 0.25
-348 4.76 4.755 4.389 4.394 4.389 4.76 0.25
-349 4.885 4.88 4.514 4.519 4.514 4.885 0.25
AS568 -425 through -460 Dynamic Radial Seal Design Guidelines
AS 568
DASH #
A B C D E F G
BORE
DIA.
+.002
-.000
PISTON
DIA.
+.002
-.000
PISTON
GLAND
DIA.
+.002
-.000
ROD
BORE
DIA.
+.002
-.000
ROD
DIA.
+.002
-.000
GLAND
DIA.
+.002
-.000
GLAND
WIDTH
+.010
-.000
-425 5.009 5.002 4.517 4.523 4.517 5.008 0.32
-426 5.134 5.127 4.642 4.648 4.642 5.133 0.32
-427 5.26 5.253 4.768 4.774 4.768 5.259 0.32
-428 5.385 5.378 4.893 4.899 4.893 5.384 0.32
-429 5.514 5.507 5.022 5.028 5.022 5.513 0.32
-430 5.639 5.632 5.147 5.153 5.147 5.638 0.32
-431 5.765 5.758 5.273 5.279 5.273 5.764 0.32
-434 6.14 6.133 5.648 5.654 5.644 6.139 0.32
-435 6.266 6.259 5.774 5.78 5.774 6.265 0.32
-436 6.391 6.384 5.899 5.905 5.899 6.39 0.32
-437 6.516 6.509 6.024 6.03 6.024 6.515 0.32
-438 6.77 6.763 6.278 6.284 6.278 6.769 0.32
-439 7.02 7.013 6.528 6.534 6.528 7.019 0.32
-440 7.271 7.264 6.779 6.785 6.779 7.27 0.32
-441 7.521 7.514 7.029 7.035 7.029 7.52 0.32
-442 7.777 7.77 7.285 7.291 7.285 7.776 0.32
-443 8.027 8.02 7.535 7.541 7.535 8.026 0.32
-444 8.278 8.271 7.786 7.792 7.786 8.277 0.32
-445 8.528 8.521 8.036 8.042 8.036 8.527 0.32
-446 9.039 9.032 8.547 8.553 8.547 9.038 0.32
-447 9.54 9.533 9.048 9.054 9.048 9.539 0.32
-448 10.041 10.034 9.549 9.555 9.549 10.04 0.32
-449 10.542 10.535 10.05 10.056 10.05 10.541 0.32
-450 11.048 11.041 10.556 10.562 10.556 11.047 0.32
-451 11.549 11.542 11.057 11.063 11.057 11.548 0.32
-452 12.05 12.043 11.558 11.564 11.558 12.049 0.32
-453 12.551 12.545 12.059 12.065 12.059 12.55 0.32
-454 13.052 13.045 12.56 12.566 12.56 13.051 0.32
-455 13.553 13.546 13.061 13.067 13.061 13.552 0.32
-456 14.064 14.057 13.572 13.578 13.572 14.063 0.32
-457 14.565 14.558 14.073 14.079 14.073 14.564 0.32
-458 15.066 15.059 14.574 14.58 14.574 15.065 0.32
-459 15.567 15.56 15.075 15.081 15.075 15.566 0.32
-460 16.068 16.061 15.576 15.582 15.576 16.067 0.32
Dynamic Radial Seal Design