Hollow Bar in PEEK Mod 152.4 mm black
Variants
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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
Additives
| 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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