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PEEK blank tubes

Hollow Bar in PEEK Mod 152.4 mm black

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PEEK Mod is PEEK rebuilt into a bearing grade. Mod means that the base plastic is blended with carbon fiber, graphite and PTFE, developed for bearings and sliding surfaces, and that mix gives a surface that slides easily and lasts a long time against steel without lubricating oil.

The base is the same tough PEEK, a high performance plastic for the toughest environments, semi-crystalline with a melting point at 341 degrees. The material runs continuously at 260 degrees and takes 300 degrees for short periods, picks up hardly any water and burns slowly with fire class V-0. That makes Mod a first choice for plain bearings and wear parts that have to run dry in a hot environment, where oil is not an option.

This version is a hollow bar in black PEEK Mod with a 152.4 mm outside diameter. Hollow bars are tube blanks with a ready hole in the middle, made for turning out plain bushings and bearing sleeves without first boring out a solid rod. The heavy dimension suits plain bearings with a large inside diameter.

Technical specifications

Format
Ämnesrör
Additives
Carbon Fiber (CF)
Graphite
PTFE
Property Value Unit Test standard
Density & Weight
Density 1,44 g/cm³ ISO 1183
Moisture Absorption
Moisture absorption (23°C/50% RH) 0,04 Procent Plast - Bestämning av vattenabsorption
Tensile Properties
Yield Stress 84 MPa ISO 527-2
Tensile Modulus of Elasticity 5500 MPa ISO 527-2
Strain at Yield 3 % ISO 527-2
Tensile Strain at Break 3 % ISO 527-2
Flexural Properties
Flexural Strength 142 MPa ISO 178
Flexural Modulus of Elasticity 6000 MPa ISO 178
Impact Resistance
Charpy Notched Impact Strength 5 kJ/m² ISO 179
Charpy Unnotched Impact Strength 28 kJ/m² ISO 179
Hardness
Shore D Hardness 87 Shore D Shore D
Compressive Properties
Compressive Strength 102 MPa ISO 604
Compressive Modulus 4000 MPa ISO 604
Temperature Limits
Melting Point 341 °C ISO 3146
Max. Service Temperature (short-term) 300 °C
Max. Continuous Service Temperature 260 °C
Heat Deflection Temperature (HDT/A) 315 °C ISO 75
Glass Transition Temperature 146 °C ISO 3146
Thermal Conductivity
Thermal Conductivity 0,82 W/(m·K) DIN 52612
Thermal Expansion
Coefficient of Linear Thermal Expansion 3 x 10⁻⁵ ISO 11359-2
Insulation Properties
Volume Resistivity 10⁷ till 10¹² IEC 60093
Static Dissipation
Surface Resistivity 10⁴ till 10¹¹ IEC 60093
Flammability Rating
Flammability Rating (UL 94) UL 94 V-0 UL 94

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