一種通常呈圓形的剛性部件,用於容納軸承。它用於定位軸承,但不會包裹軸承或限制軸承的運動。
nha:4j12055 and used on: ma0001a, retainer,bearing slat tracks,le special features, steel comp 304 overall material, c-5,various end item identification, retainer,bearing part name assigned by controlling agency, qq-5-763 assn std single material response overall material document and classification