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。
mil-g-23827 mil spec single material response lubrication material document and classification, grease lubrication material, 0.3440 inches nominal outer ring width, 0.7500 inches nominal overall outside diameter, 1.7763 inches nominal overall length