一種用緊定螺絲、鍵或銷安裝在軸上的擋圈,專門用於軸承的定位。有關通用軸環,請參閱軸環。不含:推力軸承墊圈;以及軸承襯套。
steel comp 303 overall material, 0.7187 inches nominal outside diameter, qq-s-763 fed spec single material response overall material document and classification, dead reckoning tracer mark 6 mod 4a end item identification, 0.4377 inches nominal bore diameter