BODY RING FOR 2-PIECE OIL RING AND ENGINE

摘要

To provide an improved two-piece oil ring body ring by making further device in the ring body while performing appropriate oil control, so that the ring tension can be reduced compared to conventional products, and to improve an oil ring in an engine having a two-piece oil ring.SOLUTION: A body ring for a two-piece oil ring comprises: a pair of sliding rail parts 14 and 14 projecting radially outward; and a plurality of oil holes 17 formed side by side in a circumferential direction in a state of radially penetrating between the pair of sliding rail parts 14 and 14, in which a circumferential length a of the oil hole 17 is set to 1% to 5% of a bore diameter r.SELECTED DRAWING: Figure 2