JDB-3 has almost the same structure as JDB-2. It is based on a bimetal material, which is sintered CuSn6Zn6Pb3 as a lining on its steel backing, likewise embedded with solid lubricant. It saves cost, improves compress strength and is also jointing between bush' end and machine part. It is Suitable for low load position, wear performance worsens when under middle or high load. The mating layer is same as JDB-2 so that more cost-saving than JDB-2 where as compression strength increases and weldable. Most suitable for dry position in construction, metallurgical machines, conveyor machines etc. |
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Material Specification |
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Base Material | Hardness | Similar Foreign Code | Application conditions | |||
steel + CuSn6Zn6Pb3 |
HB60~90 |
International So 1338 |
America ASTM |
Germany |
Japan JIS |
Middle-Load, Low Speed |
QSn6-3-6 |
B30-92 C83600 |
DIN1709 CuSn5ZnPb/2.1096 |
H5102 Bc6 |
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Load Capacity | Friction Coef (¦Ì) | Temperature max | Speed Limit | PV Limit(dry) | PV Limit (oil) |
70N/mm2 | <0.14 | 350¡æ | 2m/s | 1.25N/mm2 | 2N/mm2 |
Mechanical Properties |
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Density g/cm3 |
Expansion
Coefficient X10-5/¡æ |
Impact tenacity >KJ/m3 |
Heat conduction
Coefficient W (m*k) |
Elongation >% |
Pressure
Resistant Strength >N/mm2 |
Elasticity
Coefficient KN/mm2 |
8.7 | 1.7~1.9 | 100~200 | 46~63 | 15 | 240 | 85~115 |
Specification Size |
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