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。
aluminum and copper alloy overall material, bearing cap part name assigned by controlling agency, 3010-01-585-7031 end item identification, astm b150 assn std 1st material response overall material document and classification