Sintered oil retaining bearing

摘要

A sintered alloy for an oil-retaining bearing is characterised in that the sintered alloy is produced by sintering a green compact comprising particles of iron coated with copper or copper-base alloys, which consists of 20-55% by weight of iron, 30-75% by weight of copper, 2-12% by weight of tin, 2.5-9% by weight of lead and has an open porosity of from 15 to 28% by volume.