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。
0.8750 inches nominal overall length, plastic polyamide (nylon) or plastic acetal seal material, 0.6875 inches nominal overall outside diameter, grease lubrication material, 0.2810 inches nominal outer ring width