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。
t.o. 15a2-2-51-4, figure 3, index 36. special features, steel overall material, actuator assembly used on air shutoff butterfly valves, part numbers 35-277 and 35-277a. end item identification, bearing ball annular part name assigned by controlling agency