Pulley device for a tensioner roller or winding roller

A pulley device for a tensioner roller or winding roller of a transmission element, comprising:

• an inner element;
• a spacer element having a mounting bore configured to receive a screw therein, the inner element being located on a radial outer surface of the spacer element, the spacer element having a radially innermost surface defining a circumferential groove therein;
• an outer element, the inner element and outer element being configured to rotate relative to each other, the outer element having outer surface intended to cooperate with the transmission element;
• and
• an annular protective flange having a substantially radial portion bearing against a front surface of the spacer, the substantially radial portion having an inner edge forming a bore of the flange, when the annular protective flange is viewed in cross-section a portion of the flange extends from the inner edge into the pulley device so as to be axially overlapped by the fixed inner element, the portion having a curved portion and an distal end, the curved portion and the distal end forming a first abutment and a second abutment, respectively, which are configured to abut a fastener when a fastener is located within the bore, the portion of the annular protective flange being configured to be located in the circumferential groove in the spacer;
• the flange provides an annular folded portion extending substantially axially from an outer edge of the flange and passing radially into the immediate vicinity of an axially protruding annular portion of the rotating outer element to form a narrow passage.

A Pulley device for a tensioner roller or winding roller of a transmission element, comprising:

• a fixed inner element having a mounting bore for the device that is intended to take a screw,
• a rotating outer element that is mounted to rotate coaxially about the fixed inner element and has an outer surface intended to cooperate with the transmission element;
• an annular protective flange having a substantially radial portion bearing against a front surface of the fixed inner element, the substantially radial portion having an inner edge forming a bore of the flange, when the annular protective flange is viewed in cross-section a radially outermost portion thereof extends in a direction away from the rotating outer element;
• wherein, when the annular protective flange is viewed in cross-section, the defines an annular folded portion extending substantially axially and located between a first radially extending axial surface and a second radially extending axial surface of the annular protective flange.