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| HMEC DU bushing is backed with copper-plated steel with porous bronze sintered on the steel and polymers (PTFE+Pb) imbeded into the bores of the bronze. By combining the metals and the polymers together, its products are endowed with the lower friction coefficient and good capacity of anti-abrasion and self-lubriction. Moreover, the steel back is plated with an erosion-prevension layer, Products of HMEC DU series bushings are widely applied in printing, weaving and tobacco producing machines, gymnastic equipments, etc. | ||||||
| Physical and Mechanical Performance | ||||||
| Performance Index | Data | Performance Index | Data | |||
| Max Load (P) | Static Load | 250N/mm² | Friction Coefficient (u) | Dry Lubrication | 0.08¡«0.20 | |
| Dynamic Load | 140N/mm² | Oil Lubrication | 0.02¡«0.07 | |||
| Oscoillation Load | 60N/mm² | Mating Axis | Hardness | £¾200HB | ||
| Linear Vocity (V) | Dry Lubrication | 2.5m/s | Roughness | Ra=0.4¡«1.25 | ||
| Oil Lubrication | £¾5m/s | Work Temperature | -200¡«+280¡æ | |||
| Max PV Value | Grease Lubrication | 1.8N/mm².m/s | Heat-conducting Coefficient | 40W/(M-K) | ||
| Oil Lubrication | 3.6N/mm².m/s | Heat-expansion Coefficient £¨Axial) | 11¡Á106K1 | |||