Description
SF-21 has the same structure and functional performance as SF-20. It can work a long time without oil in the condition of pre-lubricated with lubrication indents. It is widely applied to metallurgy machinery, mining machinery, water conservancy machinery, automobile, building machinery, agriculture machinery, rolling steel industry and etc.
Technical Data
| Performance Index | Data | |
| Max Load Capacity | Static Load | 250N/mm² |
| Dynamic Load | 140N/mm² | |
| Max Sliding Speed | Grease Lubrication | 2.5m/s |
| Max PV Value Limit | Grease Lubrication | 2.8N/mm²· m/s |
| Friction Coefficient | Grease Lubrication | 0.05~0.25 |
| Working Temperature | -40℃~+130℃ | |
| Thermal Conductivity | 4W/m·k | |
| Coefficient of Thermal Expansion | 11X10^-6/K | |
