Compare the selection priorities
| Family | Selection focus | Example components | Check before use |
|---|---|---|---|
| PEEK | Heat & chemical resistance | Bushings, seal components, electrical fixtures | Grade, filler and operating conditions affect performance; request the specific supplier datasheet. |
| POM / Acetal | Precision & dimensional stability | Gears, rollers, precision spacers | Confirm chemical compatibility and the exact grade; this page does not establish food-contact approval. |
| PA / Nylon | Toughness & bearing applications | Rollers, bearing sleeves, guide wheels | Account for moisture uptake, dimensional changes and the selected cast or extruded grade. |
| PTFE | Chemical compatibility & low friction | Seals, liners, chemical-handling components | Review creep, load, wear and chemical exposure with the exact grade datasheet. |
| UHMW-PE | Wear & material handling | Conveyor guides, liners, wear strips | Discuss thermal expansion, fastening and tolerances before machining or assembly. |
| PPS | Heat & electrical applications | Electrical fixtures, pump components, precision holders | Verify the selected filler, electrical requirements and manufacturing process. |
Turn your application into a specification
Define temperature, load, wear, chemicals, electrical requirements and dimensional stability. Identify a candidate family, then compare actual grade datasheets and supporting test evidence.
Families are not interchangeable grades. This page does not establish numeric performance limits or certification.