Patent ID: 8091371

Claim:
A gas turbine engine having multi-stage turbines with a mid turbine frame disposed therebetween, the mid turbine frame comprising: an annular outer case connected to an engine casing; and at least three load transfer spokes radially extending from a bearing supporting inner case to the outer case, the load transfer spokes each connected to the outer case at a spoke outer end by at least one fastener extending through the outer case and into the load transfer spoke, at least three of the outer ends of the at least three load transfer spokes received in respective openings forming recesses that defined in an inner side of the outer case, the openings each defined by radially-extending peripheral surfaces extending along and around corresponding radially-extending peripheral surfaces of the spoke outer ends, the opening and spoke peripheral surfaces extending substantially around an entire periphery of the spoke outer end, the opening and spoke peripheral surfaces configured to transfer to the outer case at least one of bending and torsion loads applied to the load transfer spoke.