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Conductive rubber O-rings

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Series

Specify diameter in mm.
Specify diameter in mm.
Please select the core+cover

The Jointed O-rings are practically the same as the 7900 series 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.

Four kinds of cores are available:

  • solid
  • hollow extrusion
  • cell rubber
  • small rectangular shapes
conductive rubber o-profiles extrusion types

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

Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.

conductive o-ring technical drawing

Material options
Type Code Core Cover
7910-x-x-1-1 1-1 Neoprene Amucor foil
7910-x-x-1-2 1-2 Neoprene Conductive fabric
7910-x-x-2-1 2-1 Silicone Amucor foil
7910-x-x-2-2 2-2 Silicone Conductive fabric
7910-x-x-4-1 4-1 EPDM Amucor foil
7910-x-x-4-2 4-2 EPDM Conductive fabric
7910-x-x-5-3 5-3 Silvered particles filled silicone rubber -
7910-x-x-5-4 5-4 Nickel filled silicone rubber -
7910-x-x-5-5 5-5 Graphite filled silicone -
X needs to be replaced for extrusion type & dimensions

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
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