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。
lips turned outwardly bearing seal type, plastic polyamide (nylon) seal material, 1.0312 inches nominal overall length, 0.5000 inches nominal overall outside diameter, 0.3750 inches nominal outer ring width