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)。
mrap - common nsn - used on 3 mrap variants and 1 other weapon system; high-mobility artillery rocket system (himars) end item identification, retainer and roller, bearing part name assigned by controlling agency