A sintered sprocket for a silent chain is obtained from a material with
few addition elements by a simple densifying method. The sintered
sprocket is made of an ferrous material having an ovarall composition
containing Cu at 1 to 2%, C at 0.5 to 0.8%, Mn as an inevitable impurity
at 0.10% or less, and balance of Fe and other inevitable impurities by
mass and has a density of 7.1 Mg/m.sup.3 or higher, 65 HRA or higher as a
hardness in the gear teeth, and a martensite, sorbite, bainite, or their
mixed structure as a cross-sectional microscopic structure in at least
the gear teeth and the peripheral area of the gear teeth.