oriented towards the center 2 l of the scraper ring 1 the scraper 3 and the oil scraper ring 2 are configured mutually adapted such that both the at least first end face 2 d and also the contact position 3 c can simultaneously contact the piston rod 6 in an advantageous embodiment the oil scraper ring 2 comprises a first and a second end face 2 d 2 e which both project the same distance in the direction towards the center 2 l of the oil scraper ring 1 so that both end faces 2 d 2 e can lie at the surface 6 a of the piston ring 6 in a particularly advantageous embodiment the material forming the first end face 2 d is a material with very good dry running properties such as a filled ptfe or a high temperature polymer modified with filling materials suitable for the dry running such as ptfe mos2 graphite etc the first and second end face 2 d 2 e are mutually separated via a groove 2 b extending in the circumferential direction 2 x fig1 moreover shows a passage 2 c running in a radial direction which passage is laterally bounded by the crown part 2 i the oil scraper ring 2 has a long crown part 2 p which in the illustrated embodiment extends over the three segments and over an angle and or a length a of more than 180 degrees in a further embodiment the second end face 2 e as illustrated in fig1 in a dotted manner and also referred.