滾柱軸承的組裝內部組件,由框架或外殼組成,用於間隔和保持軸承的滾動元件、滾柱(經修改)以及軸承中的滾動元件滾柱(經修改)。
zzzy criticality code justification, material will be in accordance with navicp mech; activity hx quality control, manufacturing and testing specifications. reference number differentiating characteristics