A contact material which provides improved wear resistance as well as
reduced adhesion utilizing the features of an intermetallic compound
having an ordered phase, with the intention of (i) improving the seizure
resistance and/or wear resistance of an implement bearing which slides
under low-speed, high-surface-pressure conditions and is susceptible to
lubricant starvation; (ii) preventing abnormal noises; and (iii)
achieving prolonged greasing intervals. The contact material contains 10%
by volume or more a metallic alloy phase having such a composition range
that causes an order-disorder transition. The metallic alloy phase is a
Fe base alloy phase containing one or more elements selected from the
group consisting of Al, Si, Co and Ni.