由滾輪和螺柱組成的組件,用於與凸輪產生滾動接觸,並將往復運動或振盪運動轉換為線性運動。
1.0313 inches nominal overall length, 0.4990 inches minimum and 0.5000 inches maximum overall outside diameter, 0.190 inches nominal thread size, 0.3700 inches minimum and 0.3750 inches maximum outer ring width, steel corrosion resisting overall material