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O-ring groove dimensions, static radial gland (piston and rod), AS568 cross-sections

Name: O-ring groove dimensions, static radial gland (piston and rod), AS568 cross-sections dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

How deep and wide is the groove for an AS568 O-ring in a static piston or rod seal? · Standard part · basis: Parker O-Ring Handbook ORD 5700, Design Chart 4-1 (Industrial Static Seal Glands), AS568 cross-sections .070 to .275 in

Also called: o-ring groove dimensions, o ring gland design, as568 -2xx groove, piston groove o-ring, rod groove o-ring, static o-ring groove depth, o ring groove width, o ring squeeze percent, radial o-ring gland, o ring groove stl, o ring groove step, o-ring groove for 3d print

Exact dimensions. True size, with no printing tolerance added.

sizes: 5 in table

Notes

Depth L is the radial gland depth: the distance from the bore (piston seal) or the rod surface (rod seal) to the groove bottom. Piston gland: groove root Ø = bore Ø - 2L. Rod gland: groove root Ø = rod Ø + 2L. Widths G, G1, G2 are for no, one and two back-up rings.
Squeeze, depth and clearance are tabulated as ranges because the O-ring, groove and bore each carry a tolerance. All figures are inches as printed; the sample files use the middle of each range, stated in the file notes.
Static means no relative motion once assembled (a plug, a cap on a tube, a sleeve). The squeeze is higher than for a moving seal because nothing slides on the ring. For a moving rod or piston see the reciprocating gland page.
Typical use: a 2-214 on a cap is -2xx, so cross-section .139 in: depth .111 to .113 in, groove .187 to .192 in wide with no back-up ring, bottom radius .010 to .025 in, up to .003 to .006 in diametral clearance.
Files: for each of the five cross-sections a piston-style sample ring (grooves in the outside) and a rod-style sample block (grooves in the bore), each carrying the three widths (no / 1 / 2 back-up) side by side, in true section at a sample diameter of 2.000 in. Groove-bottom corners are rounded at the middle of the printed radius range; the groove mouth is broken at the printed 0.005 in radius. Walls are square (the drawing's 0 to 5 degree draft is not modelled).
Back-up rings themselves are not modelled, and nothing here is a tolerance or fit statement for your own machining or print process: add your process allowance.

O-ring groove dimensions, static radial gland (piston and rod)… size chart

AS568 series (dash sizes)	cross-section W, in	gland depth L, in	squeeze, in	squeeze, %	diametral clearance, in	groove width G, no back-up, in	G1, 1 back-up, in	G2, 2 back-ups, in	groove radius R, in	max eccentricity, in
-0xx (004 to 050)	0.070 ± 0.003	0.050 to 0.052	0.015 to 0.023	22 to 32	0.002 to 0.005	0.093 to 0.098	0.138 to 0.143	0.205 to 0.210	0.005 to 0.015	0.002
-1xx (102 to 178)	0.103 ± 0.003	0.081 to 0.083	0.017 to 0.025	17 to 24	0.002 to 0.005	0.140 to 0.145	0.171 to 0.176	0.238 to 0.243	0.005 to 0.015	0.002
-2xx (201 to 284)	0.139 ± 0.004	0.111 to 0.113	0.022 to 0.032	16 to 23	0.003 to 0.006	0.187 to 0.192	0.208 to 0.213	0.275 to 0.280	0.010 to 0.025	0.003
-3xx (309 to 395)	0.210 ± 0.005	0.170 to 0.173	0.032 to 0.045	15 to 21	0.003 to 0.006	0.281 to 0.286	0.311 to 0.316	0.410 to 0.415	0.020 to 0.035	0.004
-4xx (425 to 475)	0.275 ± 0.006	0.226 to 0.229	0.040 to 0.055	15 to 20	0.004 to 0.007	0.375 to 0.380	0.408 to 0.413	0.538 to 0.543	0.020 to 0.035	0.005

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Parker Hannifin O-Ring Division (chart as copied by All Seals Inc.)	Parker O-Ring Handbook ORD 5700, Design Chart 4-1: Industrial Static Seal Glands (radial, AS568 cross-sections)	web	Publisher's page; dimensions are facts
Parker Hannifin O-Ring Division	Parker O-Ring Handbook ORD 5700 (full handbook, Sections IV and V: static and dynamic O-ring sealing)	web	Publisher's page; dimensions are facts

Free files

★ Free files 10 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

gland-static-piston-sample-cs070	-0xx series, cross-section 0.070 in: gland depth 0.0510 in, groove-bottom radius 0.0100 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.0955 / 0.1405 / 0.2075 in. Piston-style sample ring (grooves in the outside): bore 2.000 in, piston Ø 1.9965 in (bore less the mid diametral clearance 0.0035 in), hole Ø 1.000 in, 0.200 in lands. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-rod-sample-cs070	-0xx series, cross-section 0.070 in: gland depth 0.0510 in, groove-bottom radius 0.0100 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.0955 / 0.1405 / 0.2075 in. Rod-style sample block (grooves in the bore): rod Ø 2.000 in, housing bore Ø 2.0035 in (rod plus the mid diametral clearance), groove root Ø 2.1020 in, 0.200 in lands, 0.500 in wall outside the root. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-piston-sample-cs103	-1xx series, cross-section 0.103 in: gland depth 0.0820 in, groove-bottom radius 0.0100 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.1425 / 0.1735 / 0.2405 in. Piston-style sample ring (grooves in the outside): bore 2.000 in, piston Ø 1.9965 in (bore less the mid diametral clearance 0.0035 in), hole Ø 1.000 in, 0.200 in lands. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-rod-sample-cs103	-1xx series, cross-section 0.103 in: gland depth 0.0820 in, groove-bottom radius 0.0100 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.1425 / 0.1735 / 0.2405 in. Rod-style sample block (grooves in the bore): rod Ø 2.000 in, housing bore Ø 2.0035 in (rod plus the mid diametral clearance), groove root Ø 2.1640 in, 0.200 in lands, 0.500 in wall outside the root. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-piston-sample-cs139	-2xx series, cross-section 0.139 in: gland depth 0.1120 in, groove-bottom radius 0.0175 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.1895 / 0.2105 / 0.2775 in. Piston-style sample ring (grooves in the outside): bore 2.000 in, piston Ø 1.9955 in (bore less the mid diametral clearance 0.0045 in), hole Ø 1.000 in, 0.200 in lands. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-rod-sample-cs139	-2xx series, cross-section 0.139 in: gland depth 0.1120 in, groove-bottom radius 0.0175 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.1895 / 0.2105 / 0.2775 in. Rod-style sample block (grooves in the bore): rod Ø 2.000 in, housing bore Ø 2.0045 in (rod plus the mid diametral clearance), groove root Ø 2.2240 in, 0.200 in lands, 0.500 in wall outside the root. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-piston-sample-cs210	-3xx series, cross-section 0.210 in: gland depth 0.1715 in, groove-bottom radius 0.0275 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.2835 / 0.3135 / 0.4125 in. Piston-style sample ring (grooves in the outside): bore 2.000 in, piston Ø 1.9955 in (bore less the mid diametral clearance 0.0045 in), hole Ø 1.000 in, 0.200 in lands. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-rod-sample-cs210	-3xx series, cross-section 0.210 in: gland depth 0.1715 in, groove-bottom radius 0.0275 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.2835 / 0.3135 / 0.4125 in. Rod-style sample block (grooves in the bore): rod Ø 2.000 in, housing bore Ø 2.0045 in (rod plus the mid diametral clearance), groove root Ø 2.3430 in, 0.200 in lands, 0.500 in wall outside the root. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-piston-sample-cs275	-4xx series, cross-section 0.275 in: gland depth 0.2275 in, groove-bottom radius 0.0275 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.3775 / 0.4105 / 0.5405 in. Piston-style sample ring (grooves in the outside): bore 2.000 in, piston Ø 1.9945 in (bore less the mid diametral clearance 0.0055 in), hole Ø 1.000 in, 0.200 in lands. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL
gland-static-rod-sample-cs275	-4xx series, cross-section 0.275 in: gland depth 0.2275 in, groove-bottom radius 0.0275 in, mouth edge break 0.005 in, widths no / 1 / 2 back-up ring 0.3775 / 0.4105 / 0.5405 in. Rod-style sample block (grooves in the bore): rod Ø 2.000 in, housing bore Ø 2.0055 in (rod plus the mid diametral clearance), groove root Ø 2.4550 in, 0.200 in lands, 0.500 in wall outside the root. Middle of each printed range; the layout is a sample, not a standard.	STEP · STL

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Plain text: sheet.txt · JSON: /api/geometry?object=oring-gland-static-radial-as568