位於滾珠或滾柱軸承表面的金屬或塑膠防護罩,主要用於防止異物進入軸承的內部結構。
bearing seal part name assigned by controlling agency, steel overall material, 127mm oc x 85mm id x 0.2638 inch thick;coldmilled zinc galvanized stamped steel special features, boom assy; side port crane end item identification