FB090 is a kind of bushes wrapped by bronze strip. The bronze is of particular formulation with high specific gravity and on its surface may be incorporated with spherical of diamond shaped indentations or oil grooves as required by customers. It is of high load capacity and long life. In place of traditional bronze bush, it is more cheap and more compact. It is widely applied in hoisting machines and other construction machines, automobiles, tractors, trucks, machine tools and some mineral engines.

 
Round Dot or Lozenge Oil Alveolation.


 
Bronze


Alloy Composition of Bush Materials(%)

Type Code Cu Sn P Pb Zn
FB080 CuSn4Pb2.5 89.5 4 --- 2.5 4
FB090 CuSn8Pb0.3 --- 8 --- 0.3 ---
CuSn6.5P0.1 93.4 6.5 0.1 --- ---

Mechanical Properties
Type Tensile Strength(N/mm2) Yield Strength(N/mm2) Elongation(%) Hardness(HB)
FB080 420 230 50 120
FB090 450 250 55 105

Physical Properties
Type Sp.gr
g/cm3
Linear Expansion
20~300¡æ 10-6/¡æ
Thermal Conductivity
20¡æ w/m*K
Electric Conductivity
20¡æ m/onm.mm2
Elastic Modulus
KN/mm2
FB080 8.8 20.2 70 7.8 108
FB090 8.9 18.2 60 6.5 115

Load Capability
Type Oscillating for Low Speed Motion Revolutionary Motion
FB080 9000~11000N/cm2 3000~3500N/cm2
FB090 10000~12000N/cm2 3500~4000N/cm2


Size Specification

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