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。
1.5000 inches nominal overall outside diameter, contact bearing seal type, 2.3750 inches nominal overall length, lubricant lubrication material, 0.8700 inches minimum and 0.8750 inches maximum outer ring width