Oring Gland Design: face_seal
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 | cs in (in) | cs mm (mm) | description | gland depth static in (in) | gland width in (in) | gland width mm (mm) | groove finish Ra uin (microinch) | groove finish Ra um (um) | notes | squeeze pct static max (%) | squeeze pct static min (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| face_seal | cs_070_face | 0.07 | 1.78 | Face Seal Axial Gland CS 0.070 in | 0.05 | 0.095 | 2.41 | 16 | 0.41 | Face seal gland depth same as static radial; axial squeeze 19-32% for 0.070 in CS; groove Ra <= 16 uin required for axial seals; flat mating surface; no backup ring needed | 32 | 19 |
| face_seal | cs_103_face | 0.103 | 2.62 | Face Seal Axial Gland CS 0.103 in | 0.082 | 0.142 | 3.61 | 16 | 0.41 | Face seal axial; groove depth 0.082 in; squeeze 20-30%; face seal surface Ra <= 16 uin; flat mating plate Ra <= 32 uin | 30 | 20 |
| face_seal | cs_139_face | 0.139 | 3.53 | Face Seal Axial Gland CS 0.139 in | 0.112 | 0.189 | 4.8 | 16 | 0.41 | Face seal axial; groove depth 0.112 in; squeeze 21-29%; common for hydraulic manifolds and flange joints; O-ring stretch at installation should be 0-5% | 29 | 21 |
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