Natural PET Rod - 16mm Dia.

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Description

Polyethylene terephthalate:
  • PET has a high tensile and mechanical strength, which makes it a very tough material with a low coefficient of friction and high dimensional stability when compared to material alternatives. PET can be used at temperatures from -20°C to +115°C and is food compliant.
Properties:
  • Better resistance to acids than nylon and acetal
  • High mechanical strength
  • Very good creep resistance and dimensional stability
  • Good resistance to radiation (Gamma & X-Ray)
  • More dimensionally stable than Acetal
  • Food compliant
Applications:
  • Mechanical Engineering
  • Rollers
  • Medical Industry
  • Conveyor industry
  • Gears
  • Heavy loaded bearings
  • Cams
WHAT ARE THE MECHANICAL PROPERTIES OF PET ROD?
  • The data sheet tells us its around 30% stronger than acetal, its also around 25% more rigid. It not also has a better working temperature but its expansion rate is much lower. Expansion due to moisture absorption is also incredibly low, some 60% better than even Acetal.
IS PET ROD MACHINABLE?
  • We’re told it machines much better than the Nylons and apparently comparable with Acetal, which we know is a big reason why Acetal is very popular.
IS PET ROD SUITABLE FOR FOOD CONTACT?
  • Yes this material has an FDA approval so its compatible with food contact applications
IS PET ROD WEAR RESISTANT?
  • PET rod will certainly outlast acetal in abrasive conditions and it’s at least as good if not better than nylon in some environments
IS PET ROD LOW IN FRICTION?
  • PET rod typically has a low friction and because it is a very hard engineering plastic, its is classed as being very slippery
WHAT ARE THE DISADVANTAGES OF PET ROD?
  • Firstly the size range is a bit limited for the time being with only 10, 16, 20, 25, 30, 40, 50 & 60mm diameters available and although black can be ordered from the factory on a special order, its white only for the moment.
  • The other one is price, it’s around +40% more than acetal, its also not suitable for hot water applications which reach over sixty degrees centigrade
HOW DOES PET ROD COMPARE TO ACETAL?
  • It machines almost as well
  • It’s over 30% stronger
  • It’s around 25% more rigid
  • 10 degrees better short term working temperature and 30 degrees better long term
  • Has a 25% lower thermal expansion rate
  • 60% less moisture absorption
  • Has a similar coefficient of friction
  • Has a much better wear resistance
  • Is approx 40% more expensive
HOW DOES PET ROD COMPARE TO NYLON 66?
  • PET machines much better than nylon
  • A similar or better surface finish
  • It’s 8% stronger
  • Also 10% more rigid
  • Has a 10 degree advantage for the short term working temperature
  • With 50% lower thermal expansion rate
  • Massive 10x (ten times) less moisture absorption
  • Has a similar coefficient of friction
  • As good if not better wear resistance
  • Is approx 50% more expensive

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