INDUCTION-HARDENED ROLLING MEMBER

摘要

PROBLEM TO BE SOLVED: To provide an induction-hardened rolling member excellent in cold drawability, having a long service life and high in wear resistance by dispersing the particles of Ti carbides and Ti carbonitrides into material steel and executing induction hardening. SOLUTION: In a rolling member used in such a manner that a rolling body 30 is arranged at an orbit member 10, the orbit member 10 contains, by weight, 0.40 to 0.90% C, 0.05 to 0.80% Si, 0.10 to 2.0% Mn, 0.05 to 0.50% Ti and <=0.03% N in the alloy components, at least the orbit face 11 of the orbit member 10 is subjected to induction hardening, also, Ti carbides and Ti carbonitrides having 5 to 100 nm average particle size are dispersed into the surface of the orbit member and the steel, and the hardness of the orbit face is controlled to >=59 HRC.