... standard 4.8-yr manufacturing exp. Product Information Product NameCross roller slewing bearing/ringTeeth/gear Modelinternal, external, no-gearInner Ring ... Double-row ball series, Double Row Eight-Point Contact Ball Bearings, Three-row roller series, and Roller & ball combination series.We are capable ... service team assures you a fast and professional response. Roller Slewing Bearing, turnable bearing