JF-20 high percentage of tin with aluminum alloy bushing is backing on low carbon steel, pressed with AlSn20Cu as liner. It has fairly good performance in anti-fatigue and good load capacity, anti-corrosion and smooth sliding movement. It usually used as
| Grade | JF-20 | |
| Material | Steel AlSn20Cu | |
| Max dynamic Load N/mm2 | 120 | |
| Max line speed | Grease lubrication | — |
| Alloy layer hardness HB | 30~40 | |
| Max PVvalue N/mm2 · m/s | Grease lubrication | — |
| Oil lubrication | 15 | |
| Friction coef μ | Grease lubrication | — |
| il lubrication | 0.04-0.12 | |
| Max Working temperature°C | Grease lubrication | 150 |
| Oil lubrication | 250 | |
| Matching Shaft | Hardness HRC | ≥270 |
| Roughness Ra | 0.16~0.63 | |
| Thermal conductivity W/mk | 47 | |
| Coefficient of linear expansion | 19✕10-6/k | |
The products are suitable for main shaft and connecting rod bearings of internal combustion engines, bearings for air compressors and refrigerators.