Bridge bearings / PTFE elastomeric bearings

ptfe5 - Bridge bearings / PTFE elastomeric bearings
icon pdf e1487577718239 - Bridge bearings / PTFE elastomeric bearings

1. Structure
PTFE 1 – pure PTFE without any additions,
PTFE M1 – modified PTFE (2nd generation PTFE)
fillers: glass, graphite, carbon, bronze, molybdenum sulphide, aluminum
oxide, pigments and polymers

2. Characteristics

PTFE 1
⦁ resistant to virtually all organic and inorganic chemicals

⦁ temperature resistant from -269°C tp +260°C

⦁ excellent electrical insulation properties,

⦁ low coefficient of friction,

⦁ no stick-slip effect,

⦁ marked anti-adhesive behavior,

⦁ physiologically harmless (FDA and BfR conformity),

⦁ outstanding weather resistance,

⦁ no aging,

⦁ no water absorption,

⦁ low thermo-conductivity,

⦁ extremely low flammability (UL 94 at 1,5mm: VO, LOI index: 95%)

⦁ relatively low wear resistance,
PTFE M1:
⦁ lower deformation under load stress,

⦁ lower tendency to cold flow,

⦁ tighter structure with fewer voids,

⦁ improved compression stress relaxation (recovery),

⦁ improved welding qualities,

⦁ smoother surfaces on machined parts.

3. The influence of fillers on the characteristics compared to pure PTFE
ptfe 1 - Bridge bearings / PTFE elastomeric bearings
4. Applications
ptfe2 1 - Bridge bearings / PTFE elastomeric bearings