Sintered Bronze Self-Lubricated Bearings
The bush in Sintered Bronze give a wide range of applications, is realized with a powder of bronze sintered, calibrated and impregnated into specific oil (volume of impregnation of 25% ÷ 29% as per DIN 30910 Sint A50). During the application, this kind of material, thanks’ to the oil impregnation, developes a film of lubricant oil, between the shaft and the bush.
Operating Conditions
-
DRY -
OIL -
GREASE -
WATER -
PROCESS
FLUID
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Characteristics
- Dry Self-lubricating
- Good 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 | Sn | Other |
|---|---|---|---|
| Min | Rest | 8% | 2% |
| Max | Rest | 10.5% | 2% |
Technical Data
| Maximum Specific Load Static | 10 N/mm2 |
|---|---|
| Maximum Specific Load Dynamic | 5 N/mm2 |
| Maximum Sliding Speed | 10 m/s (1970 fpm) |
| Friction Factor | 0,08 ÷ 0,12 |
| Service Temperature Minimum | -5°C (+23°F) |
| Service Temperature Maximum | +90°C (+194°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 |