... HK1816 OH2) Fw 18, D 24, C 16, with oil hole3) Material: Chrome/Stainless steel4) Shield/closure: ... , RNAO, RNAO, ZW Needle roller bearings, flanges, with inner ring, NAO...ZW Needle roller bearings without inner ... ring full complement, RNAV Needle roller bearings with inner ring full complement, NAV Axial thrust needle ... any question or demand on bearings. Single color box packing for bearings