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Conductive rubber O-rings
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- Conductive O-rings
- Conductive rubber O-rings
The Jointed O-rings are practically the same as the Conductive O-profiles, however, this is a turnkey closed O-ring. They are used where environmental and EMI screening is required but were little space is available.
These cores can be covered with metallized fabric foils or made out of conductive rubber. For optimal shielding performance a compression of 5-10% is recommended for solid elastomers and 10-50% for hollow extrusions and cell rubbers.
Technical details
Conductive material | Conductive fabric | Amucor | Graphite | Nickel graphite | Silver aluminium |
---|---|---|---|---|---|
Operating temperature | - | - | +160 | +160 | +160 |
Range °C | - | - | -50 | -55 | -55 |
Colour | Grey | Silver | Black | Dark grey | Beige |
Shore hardness (A +/-) ASTM D2240 | - | - | 60 | 60 | 65 |
Volume resistivity (ohms) ASTM D991 | - | - | 2.2 | 0.04 | 0.008 |
Specific gravity (+/- 0.25) | - | - | 2.0 | 2.0 | 2.0 |
These values are measured under laboratory conditions. In other situations, results may differ; please read our Guarantee. |
7910 series O-rings
Material options
Material Code | Core | Cover |
---|---|---|
11 | Neoprene | Amucor foil |
12 | Neoprene | Conductive fabric |
21 | Silicone | Amucor foil |
22 | Silicone | Conductive fabric |
41 | EPDM | Amucor foil |
42 | EPDM | Conductive fabric |
53 | Silvered particles filled silicone rubber |
- |
54 | Nickel filled silicone rubber | - |
55 | Graphite filled silicone | - |
Standard dimensions
Part number | A mm |
B mm |
---|---|---|
7910-6.6-1.8 | 6.6 | 1.8 |
7910-7.5-1.2 | 7.5 | 1.2 |
7910-9.2-1.8 | 9.2 | 1.8 |
7910-10.5-1.4 | 10.5 | 1.4 |
7910-11.3-1.3 | 11.3 | 1.3 |
7910-12.5-1.8 | 12.5 | 1.8 |
7910-12.7-2.5 | 12.7 | 2.5 |
7910-14.0-1.8 | 14.0 | 1.8 |
7910-16.1-1.6 | 16.1 | 1.6 |
7910-17.2-1.8 | 17.2 | 1.8 |
7910-18.8-1.8 | 18.8 | 1.8 |
7910-19.2-2.5 | 19.2 | 2.5 |
7910-20.3-1.8 | 20.3 | 1.8 |
7910-21.9-1.8 | 21.9 | 1.8 |
7910-23.4-3.5 | 23.4 | 3.5 |
7910-25.1-1.8 | 25.1 | 1.8 |
7910-25.4-6.4 | 25.4 | 6.4 |
7910-28.6-1.8 | 28.3 | 1.8 |
7910-31.5-1.8 | 31.5 | 1.8 |
7910-34.6-2.6 | 34.6 | 2.6 |
7910-34.7-1.8 | 34.7 | 1.8 |
7910-37.8-2.6 | 37.8 | 2.6 |
7910-40.9-2.6 | 40.9 | 2.6 |
7910-44.1-2.6 | 44.1 | 2.6 |