Pulley device, in particular for tensioning idler or runner roller

A pulley device for supporting a belt of chain tensioning idler or a runner roller, the pulley device comprising:

• a bearing having an outer ring mounted for rotation relative to a coaxial inner ring;
• and
• at least one pulley part, C-shaped in cross section, having an inner portion with a frustoconical inner surface mounted on an outer cylindrical surface of the outer ring, an outer cylindrical portion having an outer cylindrical surface configured to support a belt or a chain, and an intermediate portion extending radially inward from the outer cylindrical portion to the inner portion, the at least one pulley part being formed integral and having an open end on an axial side opposite the intermediate portion;
• wherein the frustoconical inner surface extends inwardly towards the outer ring, and
• wherein the frustoconical inner surface is force fitted onto the outer cylindrical surface of the outer ring,
• wherein the at least one pulley part comprises a first pulley part and a second pulley part, the first and second pulley parts being mounted on the outer cylindrical surface of the outer ring such that the open end of the first pulley part faces the open end of the second pulley part and such that a free end of the outer cylindrical portion of the first pulley part abuts a free end of the outer cylindrical portion of the second pulley part,
• wherein the outer cylindrical surface of the outer ring includes an annular recess,
• wherein the first and second pulley parts each have at least one protruding portion which extends radially inward from an end of the inner portion and is received in the annular recess of the outer ring.