由一個滾子徑向單元和一個滾子推力單元組成的軸承。徑向單元的內圈與推力單元的內圈一體成型。不包括:同一列滾子同時承受徑向推力和軸向推力的軸承。
59.4960 inches nominal largest bore diameter, bearing roller radial part name assigned by controlling agency, 64.0040 inches nominal outer ring outside diameter, 4.2500 inches nominal overall width, ram and crosshead sheave assembly end item identification