単列または複数列の硬化円筒ころとリテーナー(内輪または外輪の有無を問わず)で構成される非調整式ころ軸受。軸受、ころ、機体は除く。
zzzy criticality code justification, material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications reference number differentiating characteristics