SF-1W bearing bushing
Structure:
1. PTFE with lead 0.01~0.03mm
2. Porous bronze 0.2~0.3mm
3. Steel backing 0.7~2.3mm
4. Tin plating 0.005mm or copper plating 0.008mm
Construction |
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1 | Backing | Low carbon steel | DC01,ST12,SPCC |
2 | Innerstructure | Porous bronze |
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3 | Bearing surface | PTFE/lead |
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Physical Characterist of SF-1X | Data |
1 | Load capacity ( P ) | Static load | 36000psi (250N/mm2) |
Dynamic load | 20000psi (140N/mm2) |
Oscillating load | 8700psi (60N/mm2) |
2 | Max. Linear speed (V) | Dry friction | 500fpm (2.5m/s) |
Lubricated | 1000fpm (5m/s) |
3 | PV value limit | Dry friction | 3.6N/mm2.m/s |
Lubricated | 50N/mm2.m/s |
4 | Friction coef. ( u ) |
| 0.04~0.20 |
5 | Working temperature | -319°F~ 518°F (-195oC~ 270oC) |
6 | Thermal conductivity | 13W/mk |
7 | Coefficient of linear expansion | 11*10 -6/K
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