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。
7.0 millimeters nominal overall width, deep groove ball bearing part name assigned by controlling agency, straight bore shape, 8.0 millimeters nominal bore diameter, 22.0 millimeters nominal overall outside diameter