DP4 metal-polymer low friction plain bearings are high-performance bushings designed for excellent wear resistance and low friction under various operating conditions. With easy installation, these bearings help reduce system cost, size, and weight. They offer quiet, maintenance-free or lubricated operation, eliminate corrosion issues, and ensure outstanding dimensional stability—making them an ideal choice for reliable and efficient equipment performance.
| BEARING PROPERTIES | ||
|---|---|---|
| UNITS | VALUE | |
| GENERAL | ||
| Maximum load, p | N/mm² | Static: 250 Dynamic: 140 |
| Operating temperature | °C | Min: -200 Max: 280 |
| Coefficient of linear thermal expansion | 10-6/K | Parallel to the surface: 11 Normal to the surface: 30 |
| DRY | ||
| Maximum sliding speed, U | m/s | 2.5 |
| Maximum pU factor | N/mm² × m/s | 1.0 |
| Coefficient of friction, f | 0.04 - 0.25* | |
| OIL LUBRICATED | ||
| Maximum sliding speed, U | m/s | 5.0 |
| Maximum pU factor | N/mm² × m/s | 10.0 |
| Coefficient of friction, f | 0.02 - 0.08 | |
| RECOMMENDATIONS | ||
| Shaft surface roughness, Ra | μm | Dry: 0.3 - 0.5 Lubricated: ≤ 0.05 - 0.40* |
| Shaft surface hardness | HB | Unhardened acceptable, improved bearing life > 200 |
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