Product series: NTB-50 Series
Substrate characteristics
In the high-quality carbon steel casting surface high-strength copper alloy as the base material of the bearing, this manufacturing process makes the combination of copper and steel surfaces to achieve complete metallurgical bond, reducing the material costs but also improve its carrying capacity; and according to the use of labor condition in which the solid lubricant Face mosaic greatly reduces the coefficient of friction reaches a self-bearing and lubrication purposes.
Technical Parameters
In the high-quality carbon steel casting surface high-strength copper alloy as the base material of the bearing, this manufacturing process makes the combination of copper and steel surfaces to achieve complete metallurgical bond, reducing the material costs but also improve its carrying capacity; and according to the use of labor condition in which the solid lubricant Face mosaic greatly reduces the coefficient of friction reaches a self-bearing and lubrication purposes.
| Material Grade | 650GT 600GT | 650GT1 600GT1 | 650GT3 600GT3 | 650GT5 600GT5 |
| Copper alloy composition | CuZn25Al5Mn4Fe3 | CuSn5Pb5Zn5 | CuSn12 | CuZn25Al5Mn4Fe3 |
| Alloy layer hardness HB | >210 | >70 | >95 | >250 |
| Alloy layer bond strength Mpa | >150 | >100 | >100 | >150 |
| The maximum static load Mpa | 250 | 150 | 150 | 250 |
| Maximum dynamic bearing Mpa | 100 | 60 | 70 | 120 |
| The maximum line speed (dry) m/min | 15 | 10 | 10 | 15 |
| The maximum PV value N/mm2*m/min | 200 | 60 | 80 | 200 |
| Coefficient of thermal expansion 10-5/K | 1.2x10-5/℃ | 1.2x10-5/℃ | 1.2x10-5/℃ | 1.2x10-5/℃ |
| Temperature ℃ | -40~+300 | -40~+400 | -40~+400 | -40~+150 |
| Permanent compression deformation 300N/mm2 | <0.01mm | <0.05mm | <0.05mm | <0.005mm |
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