"CAGE:STEEL,SHEET,STRIP OR WIRE FORM,CENTERED BY ROLLING ELEMENTS,BRONZE OR BRASS CAGES,NOT IN SHEET,STRIP OR WIRE FORM ARE AN ACCEPTABLE ALTERNATE.SHIELDS:NONE;SEALS:DOUBLE ;INTERNAL CLEARANCE:AFBMA-3;TOLERANCES:ABEC-1 ;LUBRICANT:4824-15P (MOBIL NUMBER 28) 4824-15AJ(ROYCO NUMBER 28)IS AN ACCEPTABLE ALTERNATE GREASE.TREATMENT:BEARING DESIGNED FOR OPERATION AT DEGREES (F);SUPPLEMENTARSPECIFICATION:416825-1"