Gas turbine engine

A gas turbine engine comprising:

• a compressor that compresses air which has been taken in;
• a combustor that sprays a fuel to the air compressed by the compressor and combusts the fuel;
• a turbine that is rotated by energy of a combustion gas generated by the combustor;
• a rotating shaft that couples the compressor and the turbine;
• a rear bearing that is a cageless ball bearing including an inner race, an outer race, and a ball, the inner race being fixed to a portion of the rotating shaft which portion is close to the turbine;
• a housing to which the rear bearing is attached;
• and
• a rear bearing holding member that is interposed between the rear bearing and the housing, is fixed to the housing, holds the outer race of the rear bearing such that the outer race of the rear bearing is movable in an axial direction relative to the rear bearing holding member, and therefore, holds the outer race of the rear bearing such that the outer race of the rear bearing is movable in the axial direction relative to the housing.