一種圓柱形裝置,其內圈或外圈繞單排或雙排硬化滾珠轉動,滾珠在兩圈之間滾動順暢,從而最大限度地減少摩擦。對於表面經過特殊研磨以用於雙聯安裝的軸承,請參閱“雙聯滾珠軸承”。不含:機架滾珠軸承。
straight bore shape, actuator assembly used on air shutoff butterfly valves,part numbers 35-277 and 35-277a. t.o. 15a2-2-51-4,figure 3. special features, actuator assembly end item identification, bearing,ball,annular part name assigned by controlling agency, steel overall material