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.

Material Structure and Composition
Solid Lubricant Inserts
 
Sintered Bronze

 Steel Backing
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Material Specification
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


Physical Characteristic

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
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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