Oring Gland Design: gland_design_dynamic
O-ring gland design dimensions and squeeze parameters per AS568B-2016 (SAE standard) and Parker O-Ring Handbook ORD 5700 (2018). Covers five cross-section size groups (0.070, 0.103, 0.139, 0.210, 0.275 inch) for static radial seals, dynamic reciprocating seals, and face (axial) seals. Includes gland depth, groove width (inches and mm), squeeze percentage ranges, groove surface finish requirements, backup ring pressure thresholds, representative AS568 O-ring dimensions by dash number, dimensional tolerances, and elastomer material compatibility temperature ranges (NBR, FKM, EPDM, silicone, CR).
| seal application | record id | backup ring pressure psi (psi) | cs in (in) | cs mm (mm) | description | gland depth dynamic in (in) | gland width in (in) | gland width mm (mm) | groove finish Ra uin (microinch) | groove finish Ra um (um) | notes | squeeze pct dynamic max (%) | squeeze pct dynamic min (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| gland_design_dynamic | cs_070_dynamic | 1,500 | 0.07 | 1.78 | Dynamic Reciprocating Gland CS 0.070 in 000-series | 0.056 | 0.095 | 2.41 | 32 | 0.81 | Applicable to AS568 -004 through -050; gland depth 0.055-0.057 in for reciprocating seals; groove width same as static; squeeze 15-25% dynamic; backup ring recommended above 1500 psi | 25 | 15 |
| gland_design_dynamic | cs_103_dynamic | 1,500 | 0.103 | 2.62 | Dynamic Reciprocating Gland CS 0.103 in 100-series | 0.089 | 0.142 | 3.61 | 32 | 0.81 | Applicable to AS568 -102 through -178; gland depth 0.088-0.090 in; squeeze 10-17% dynamic; smaller than static to reduce friction and heat generation | 17 | 10 |
| gland_design_dynamic | cs_139_dynamic | 1,500 | 0.139 | 3.53 | Dynamic Reciprocating Gland CS 0.139 in 200-series | 0.122 | 0.189 | 4.8 | 32 | 0.81 | Applicable to AS568 -201 through -244; gland depth 0.121-0.123 in; squeeze 9-16% dynamic; most common size class for hydraulic cylinders and pneumatic actuators | 16 | 9 |
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