一種設計用於固定在基座上的部件,用於構成可拆卸軸承的殼體,或者軸承本身也可以是殼體的組成部分。它用於防止灰塵和/或異物進入,保留潤滑劑,並定位軸或類似物。
quality control in accordance with navships 0948-045-7010 material identification and control instruction for subsafe items reference number differentiating characteristics, door assy,sea valve left hand end item identification, zzzy criticality code justification