Ertalyte™ SLP PET-P is a bearing grade that offers excellent wear resistance, low coefficient of friction and high strength. Developed specifically for use in wind turbines to change yaw systems from roller bearings into cost-effective slide bearings, this specialty PET-P exhibits low wear, low friction and high load capabilities. The material is also more rigid and provides better thermal performance than nylons or acetals.
PROPERTIES
Excellent wear resistance and low coefficient of friction
High mechanical strength, high load capabilities
Greater rigidity and better thermal performance than nylons or acetals
Developed specifically for use in wind turbine yaw systems
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
Continuous allowable service temperature in air
100
Mechanical Properties
Property
Value
Tensile Strength (MPa)
95
Tensile Modulus of Elasticity (MPa)
3,400
Compressive stress at 1% nominal strain (MPa)
31
Compressive stress at 2% nominal strain (MPa)
64
Compressive stress at 5% nominal strain (MPa)
109
Flexural Strength (MPa)
135
Charpy Impact Notched (kJ/m²)
1.5
Chemical Properties
Property
Value
Hot Water / Steam
Acids, Weak
Acids, Strong (pH 1-3)
Limited
Alkalies, Weak
Limited
Alkalies, Strong (pH 11-14)
Not acceptable
Hydrocarbons - Aromatic
Acceptable
Hydrocarbons - Aliphatic
Acceptable
Ketones, Esters
Acceptable
Chlorinated Solvents
Limited
Alcohols
Limited
Inorganic Salt Solutions
Electrical Properties
Property
Value
Dielectric Strength (kV/mm)
Certification Properties
Property
Value
FDA
Not compliant
European Food Approval
Not compliant
NSF
Not compliant
3A-SSI
Not compliant
Canada AG
USDA
Not compliant
Flammability (UL Rating)
HB
Medical use
Miscellaneous Properties
Property
Value
Base Material
PET
Brand Family
Colors
Blue
Density (g/cm3)
1.39
Water Absorption after 24 hrs immersion in water (%)
