These are steel
backed bronze Impregnated bushes mainly used
for High Load application upto 250 N/mm2 and
temperature upto +280° C.
DU is a composite material consisting of
three layers viz., steel backing (Low Carbon
Steel), A Porous Bronze (90% Cu & 10% Sn)
sintered Matrix, overlaid with a mixture of
PTEE (Poly Tetra Fluro Ethylene) and Lead.
Steel Backing provides the underlying
strength while porous bronze sintered layer
provides the strong mechanical bond for the
impregnated
PTEE/LEAD mixture.
