Nylon (PA)
Nylon (Polyamide PA6/PA66) – Tough, Wear-Resistant Engineering Plastic for Gears and Bearings
Nylon (polyamide) is one of the most widely used engineering thermoplastics, offering an excellent balance of toughness, wear resistance, and moderate strength at very low cost. Available in PA6 and PA66 grades, it provides good mechanical performance across a wide temperature range and is easily machined, injection-molded, or extruded into complex shapes for industrial components.
Key Properties
- Tensile Strength: 75 MPa
- Elongation at Break: 150% — very tough
- Service Temperature: Up to 220–265°C (short-term)
- Density: 1.14 g/cm³
- Note: Moisture absorption affects dimensional stability — account for in precision applications
- Standard: ASTM D4066
Common Applications
Gears, bearings, bushings, structural brackets, cable ties, rollers, conveyor components, and textile machinery parts where a cost-effective, tough engineering plastic is required.
Material properties
| Material name | Nylon (PA) |
|---|---|
| Type | Plastics |
| Standard code | ASTM D4066 |
| Tensile strength (MPa) | 75 |
| Yield strength (MPa) | 55 |
| Fatigue strength (MPa) | 28 |
| Elongation (%) | 150 |
| Hardness (Brinell) | — |
| Density (g/cm³) | 1.14 |
| Electrical resistivity (µΩ·in) | — |
| Thermal conductivity (W/m·K) | 0.3 |
| Melting range (°C) | 220–265 |
| Weldability | N/A |
| Formability | Good |
| Shear modulus | 1.2 |
| Industry code | nylon |