Patent ID: 8511987

Claim:
A turbofan engine comprising: an engine case; a gaspath through the engine case; a fan having a circumferential array of fan blades; a fan case encircling the fan blades radially outboard of the engine case; a plurality of fan case vanes extending outward from the engine case to the fan case; a front frame assembly comprising a plurality of vanes extending radially across the gas path; a shaft; a transmission coupling the shaft to a fan shaft to drive the fan; a duplex bearing assembly coupling the shaft to the front frame assembly; and a bearing support extending aftward and radially inward from the front frame assembly to the bearing assembly, wherein: the duplex bearing comprises a forward bearing and an aft bearing; the forward bearing has a center spaced apart from a center of the aft bearing by a bearing distance; and the forward bearing has an inboard race longitudinally cantilevered by a cantilever distance at least about 20% of said bearing distance.