Copper-based sintered alloy bearing for motor fuel pump

摘要

This bearing for a motor fuel pump is made of a graphite dispersion type Cu-based sintered alloy with a composition consisting essentially of 20 to 40% by weight of Ni, 0.1 to 0.9% by weight of P and 1 to 8% by weight of C, and the balance of Cu and inevitable impurities, the graphite dispersion type Cu-based sintered alloy having a porosity of 5 to 25%.