SCRAPER RING FOR A THREE-PART OIL SCRAPER RING AND THREE-PART OIL SCRAPER RING

摘要

The invention relates to a three-part oil scraper ring, with an expander spring and two scraper rings, comprising a ring body (4) with an upper side (6), a lower side (8), a ring inner surface (10) and a ring outer surface (12), which has a ring outer contour (14) in a cross-sectional view in the axial direction (A), wherein the ring body (4) has a height H that corresponds with the greatest distance of the upper side (6) from the lower side (8), wherein the ring outer contour (14) forms a running surface (16) having a radius of curvature R that is smaller than the height H of the scraper ring (2) by a factor of between 1.5 and 6, preferably between 3 and 5, and particularly preferably between 3.5 and 4.5.