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。
bearring, hvy.duty dbl. cylindrical, w/ ctr thrust ring part name assigned by controlling agency, 0.9375 inches nominal cam end diameter, lubricant lubrication material, 1.750 inches nominal overall outside diameter, 2.750 inches nominal overall length