Description
The bush in Sintered Steel is made with powder of steel obtained trough the powder metallurgy technology. The difference between this kind of material and more famous “Bronze” type is the volume of oil impregnation, that in this case is 25% ÷ 33% Standard Sint A00 DIN 30910. This material is more suitable in application with high load and low sliding speed.
Operating Conditions
|
Dry |
Oil |
Grease |
Water |
Process fluid |
|---|---|---|---|---|
| Good | Good | Fair | Inadvisable | Inadvisable |
Characteristics
- Dry Self-lubricating
- High load capacity
- Easy to assembly
- Minimum overall dimensions
- Standard items widely available
- Special items on demand
- Wide range of operating temperature
- Minimized wear and good service life
Chemical composition
| Element | Cu | Fe | Mo | C | Other |
|---|---|---|---|---|---|
| Min | 1,0% | Rest | 1,0% | 0,3% | 2,0% |
| Max | 3,0% | Rest | 2,0% | 0,7% | 2,0% |
Technical data
| Maximum Specific Load Static | 40 N/mm2 |
| Maximum Specific Load Dynamic | 10 N/mm2 |
| Maximum Sliding Speed | 4 m/s (790 fpm) |
| Friction Factor | 0,08 ÷ 0,12 |
| Service Temperature Minimum | -20°C (-4°F) |
| Service Temperature Maximum | +100°C (+212°F) |
| Shaft Roughness (Suggested) | ≤0,2 Ra |
| Shaft Hardness (Suggested) | >350 Hb |
| Density Min. | 5,6 g/cm3 |
| Density Max. | 6,0 g/cm3 |
| Porosity Min. | 22,5 % Vpor/Vtot |
| Porosity Max. | 27,5 % Vpor/Vtot |
| Hardness Min. | 30 HB |
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