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Metric O-ring groove dimensions: depth, width and radius, 1.0 to 5.7 mm cross-sections
How deep and wide is the groove for a metric O-ring (1.5, 2, 2.5, 3, 3.53, 5.33 mm cross-section)? · Standard part · basis: Seals-Shop GmbH data sheet O-Ring 02, installation dimensions (radial and axial), nominal values in mm
Also called: metric o-ring groove, o-ring groove dimensions mm, o ring groove depth 2mm cross section, o-ring groove 3d print, o ring groove 3.53, o-ring groove 5.33, o-ring groove 1.78, o ring groove width metric, face seal groove mm, axial o-ring groove metric, o ring gland design metric
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 11 in table
Notes
- One maker's published recommendation for metric O-rings (Seals-Shop GmbH data sheet, "Einbaumasse, Standardempfehlungen"). The sheet does not name a standard, so this page does not call it ISO 3601-2; the cross-sections 1.78, 2.62, 3.53 and 5.33 are the AS568 metric sizes (preferred sizes on the sheet), the others are the metric series. A dash means the sheet gives no dynamic depth.
- Tolerances on the sheet: width b1 +0.25 mm, radial depth +0.1 mm, axial width b4 +0.2 mm, radius ±0.2 mm. The values above and the files are the nominal numbers. The sheet says the depths are based on the nominal cross-section and ignore the O-ring ID and its stretch; with support rings the radial width grows by the ring thickness (one ring for b2, two for b3, not tabulated here) and the radius is r = 0.25 ±0.2 mm.
- Files: for each of the 11 cross-sections, a piston-style sample ring with the static radial groove (50 mm ring, 30 mm hole, 4 mm lands) and a face plate (80 mm, 12 mm thick, groove outer Ø 60 mm) with the axial groove, true section at the nominal numbers, bottom corners rounded at the printed radius, mouth sharp. No piston-to-bore clearance is printed, so the ring is drawn at the bore diameter. Sample diameters are our layout, not the maker's.
- Some cross-sections on the sheet are not listed here (for example 1.2, 1.6, 2.4, 3.5, 4.5, 5.0); they follow the same pattern and the maker's full table has them.
- For the inch (AS568) series see the static, face-seal and reciprocating pages: those are from Parker's design charts. Metric and inch tables give slightly different squeeze, so do not mix one maker's depth with another's width.
Metric O-ring groove dimensions: depth, width and radius, 1.0 to 5.7… size chart
| cross-section d2, mm | depth, dynamic radial t, mm | depth, static radial t / axial h, mm | radial groove width b1, mm | axial groove width b4, mm | bottom radius r, mm |
|---|---|---|---|---|---|
| 1 | - | 0.70 | 1.40 | 1.40 | 0.20 |
| 1.5 | 1.25 | 1.10 | 2.00 | 2.10 | 0.30 |
| 1.78 | 1.45 | 1.30 | 2.40 | 2.60 | 0.30 |
| 2 | 1.65 | 1.50 | 2.70 | 2.80 | 0.30 |
| 2.5 | 2.15 | 1.90 | 3.30 | 3.40 | 0.30 |
| 2.62 | 2.25 | 2.00 | 3.60 | 3.80 | 0.30 |
| 3 | 2.60 | 2.30 | 4.00 | 4.00 | 0.60 |
| 3.53 | 3.10 | 2.70 | 4.80 | 5.00 | 0.60 |
| 4 | 3.50 | 3.10 | 5.20 | 5.30 | 0.60 |
| 5.33 | 4.70 | 4.30 | 7.10 | 7.30 | 0.60 |
| 5.7 | 5.00 | 4.60 | 7.20 | 7.40 | 0.60 |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Seals-Shop GmbH | Technical data sheet O-Ring 02: Einbaumasse, Standardempfehlungen (groove dimensions for radial and axial installation, mm) | web | Publisher's page; dimensions are facts |
Free files
★ Free files 22 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| groove-radial-piston-sample-cs1 | 1 mm cross-section, static radial groove in a piston-style sample ring: depth 0.7 mm, width 1.4 mm, bottom radius 0.2 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs1 | 1 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 0.7 mm, width 1.4 mm, bottom radius 0.2 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs1p5 | 1.5 mm cross-section, static radial groove in a piston-style sample ring: depth 1.1 mm, width 2 mm, bottom radius 0.3 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs1p5 | 1.5 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 1.1 mm, width 2.1 mm, bottom radius 0.3 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs1p78 | 1.78 mm cross-section, static radial groove in a piston-style sample ring: depth 1.3 mm, width 2.4 mm, bottom radius 0.3 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs1p78 | 1.78 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 1.3 mm, width 2.6 mm, bottom radius 0.3 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs2 | 2 mm cross-section, static radial groove in a piston-style sample ring: depth 1.5 mm, width 2.7 mm, bottom radius 0.3 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs2 | 2 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 1.5 mm, width 2.8 mm, bottom radius 0.3 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs2p5 | 2.5 mm cross-section, static radial groove in a piston-style sample ring: depth 1.9 mm, width 3.3 mm, bottom radius 0.3 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs2p5 | 2.5 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 1.9 mm, width 3.4 mm, bottom radius 0.3 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs2p62 | 2.62 mm cross-section, static radial groove in a piston-style sample ring: depth 2 mm, width 3.6 mm, bottom radius 0.3 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs2p62 | 2.62 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 2 mm, width 3.8 mm, bottom radius 0.3 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs3 | 3 mm cross-section, static radial groove in a piston-style sample ring: depth 2.3 mm, width 4 mm, bottom radius 0.6 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs3 | 3 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 2.3 mm, width 4 mm, bottom radius 0.6 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs3p53 | 3.53 mm cross-section, static radial groove in a piston-style sample ring: depth 2.7 mm, width 4.8 mm, bottom radius 0.6 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs3p53 | 3.53 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 2.7 mm, width 5 mm, bottom radius 0.6 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs4 | 4 mm cross-section, static radial groove in a piston-style sample ring: depth 3.1 mm, width 5.2 mm, bottom radius 0.6 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs4 | 4 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 3.1 mm, width 5.3 mm, bottom radius 0.6 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs5p33 | 5.33 mm cross-section, static radial groove in a piston-style sample ring: depth 4.3 mm, width 7.1 mm, bottom radius 0.6 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs5p33 | 5.33 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 4.3 mm, width 7.3 mm, bottom radius 0.6 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
| groove-radial-piston-sample-cs5p7 | 5.7 mm cross-section, static radial groove in a piston-style sample ring: depth 4.6 mm, width 7.2 mm, bottom radius 0.6 mm. Ring Ø 50 mm, hole Ø 30 mm, 4 mm lands (sample layout). No clearance is printed, so the ring is drawn at the 50 mm bore with the groove cut from it. | STEP · STL |
| groove-face-plate-sample-cs5p7 | 5.7 mm cross-section, axial (face) groove in an 80 mm plate, 12 mm thick: depth 4.6 mm, width 7.4 mm, bottom radius 0.6 mm, groove outer Ø 60 mm (sample layout). Mouth sharp, walls square. | STEP · STL |
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Questions
How deep is the groove for a 2.62 mm O-ring in a static radial seal?
2.00 mm deep and 3.60 mm wide (bottom radius 0.30 mm); an axial groove is 2.00 deep and 3.80 wide.
What groove for a 3 mm O-ring?
Static depth 2.30 mm, radial width 4.00 mm, axial width 4.00 mm, radius 0.60 mm; a dynamic radial groove is 2.60 mm deep.
What groove for a 1 mm O-ring?
0.70 mm deep, 1.40 mm wide (radial and axial), radius 0.20 mm; the sheet gives no dynamic depth at 1 mm.