The bearings have two loose flange rings on the outer ring, a flangeless inner ring and four rows of rollers (fig 1) or eight rows of rollers (fig 2).

• 这些轴承外圈上有两个松配合法兰圈,还有一个不带法兰的内圈和四列滚子(图1)或八列滚子(图2)。