Patent ID: 8398512

Claim:
Belt pulley for a wet belt application, with a pulley body comprising toothing incorporating teeth on one pulley body end face for a toothed belt, a tooth gap with a tooth gap base being disposed between every two teeth, wherein the geometry of the teeth and the geometry of the tooth gaps are designed to mesh with the toothed belt, and having a flange which is disposed—in the axial direction—on the side of the pulley body and extends to a flange end face beyond the toothing in the radial direction, wherein lubricant grooves are provided in the region of the tooth gap bases and on an inner surface of the flange facing the toothing for feeding away a lubricant, wherein the lubricant grooves on the inner surface of the flange extend toward the flange end face and are provided with an open end in the direction of the flange end face and terminate at a first distance from the flange end face shorter than a second distance between the toothed belt and the flange end face.