Česky Česká verze

Rubber cords

Material specification

Principal factors for the material selection are pressure, temperature, and packed medium.

Material Temperature range Usage Hardness

NBR
Acrylnitrile-Butadiene-Rubber

- 30 °C + 110 °C

standart material for hydraulic and pneumatic compression fluid on mineral-oil base animal and vegetable oils heavily inflame fluids, aliphatic hydrocarbons (propane,butane,gas) silicon oils water up to +80°C, air, bio-oils, from synthetic ester and vegetable oils

70

EPDM
Ethylene-Propylene-Dien-Rubber

- 60 °C + 150 °C

hot water, vapour, brake fluid, washing means alcohols, ketones, KFZ-cold water heavily inflame fluids on the phosphorus-acid base organic and anorganic acids and bases

70

Silicone

- 70 °C + 230 °

hot air, oxygen, ozone, UV-rays aliphatic engine and transmission oils, animal and vegetable oils brake fluids

60

FPM
Fluorine-Rubber

- 20 °C + 260 °C

mineral oils aliphatic, aromatic and chlorine hydrocarbons gas, super-gas, diesel-propellants heavily inflame fluids on phosphate-ester base, silicon oils acids, lyes

70

Standard types:

NBR 70 and FPM 70 materials

Size toleration

NBR material
cord diameter in mm toleration in mm
1,5 - 2,0 ± 0,2
2,1 - 3,0 ± 0,25
3,1 - 4,0 ± 0,35
4,1 - 6,0 ± 0,4
6,1 - 10,0 ± 0,55
10,1 - 16,0 ± 0,65
16,1 - 24,0 ± 0,85
24,1 - 30,0 ± 1,00
FPM material
cord diameter in mm toleration in mm
1,5 - 2,5 ± 0,2
2,6 - 3,0 ± 0,25
3,1 - 6,0 ± 0,3
6,1 - 10,0 ± 0,4
10,1 - 16,0 ± 0,5
16,1 - 25,0 ± 0,7
25,1 - 30,0 ± 0,9
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