Wellbore drilling machine component comprising a rotating control device mounted on a wellhead, a bearing assembly latched to the component and having an electric motor used to enclose the circulation of drilling fluid and direct it to drilling rig surface facilities by sealing the area between the wellbore and drillstring under elevated pressure and temperature conditions

'area':45 'assembl':16 'bear':15 'circul':30 'compon':4,20 'compris':5 'condit':56 'control':8 'devic':9 'direct':35 'drill':2,32,38 'drillstr':50 'electr':24 'elev':52 'enclos':28 'facil':41 'fluid':33 'latch':17 'machin':3 'motor':25 'mount':10 'pressur':53 'rig':39 'rotat':7 'seal':43 'surfac':40 'temperatur':55 'use':26 'wellbor':1,48 'wellhead':13

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