Patent ID: 8454241

Claim:
A rolling device comprising: an inner member having a raceway surface on an outer surface; an outer member having a raceway surface opposing the raceway surface of the inner member and arranged outside said inner member; a plurality of rolling elements arranged rotatably between said raceway surfaces; and a metal coating for corrosion resistance formed by shot-peening a powder of metal of zinc and tin onto at least any one of said inner member, said outer member, and said rolling elements, the metal coating being formed by shot-peening a tin powder after shot-peening a zinc powder, wherein the roughness of a base material before the metal coating is formed is 0.01 μmRa-1 μmRa, wherein the roughness of the metal coating is 10 μmRa or less, and wherein a residual stress is generated in the base material by shot-peening.