A rotating electric machine rotor, comprising: a rotor core; and a pair of permanent magnets disposed in a V-shape that opens toward an outer periphery of the rotor core, wherein: the pair of permanent magnets is separated in an inner periphery direction of the rotor core, and the rotor core contains a gap formed by connecting between at least the separated permanent magnets, wherein: the rotor core is provided around a rotor shaft, the gap has a line-symmetric shape viewed in a cross section perpendicular to the rotor shaft, has a base portion on a rotor shaft side reaching a symmetry axis, and has an abutting surface that is convexly provided toward an inside from a rotor shaft side inner wall surface at a base of an inner wall surface facing against a pole face of the permanent magnet and that is abutted against a side surface of the permanent magnet to separate the side surface of the permanent magnet from the symmetry axis, the pair of permanent magnets is disposed for each gap so that pole faces (31a, 31b) face against inner wall surfaces (213, 214) of the gap over entire lengths, and a side surface abuts only against the abutting surface, when viewed in the cross section perpendicular to the rotor shaft, and characterized in that the formula is satisfied between a clearance between magnets Gm as an interval between the side surface of the permanent magnet and an intersection between an extension line of an outer periphery side inner wall surface of the gap and the symmetry axis, a magnet width Wm as a length of the pole face on an outer periphery side, and a magnet thickness Tm, the magnet thickness Tm being the length of the side surface on the symmetry axis side: 0 mm < Gm × Tm Wm ≤ 0.25 mm a rotor core; and a pair of permanent magnets disposed in a V-shape that opens toward an outer periphery of the rotor core, wherein: the pair of permanent magnets is separated in an inner periphery direction of the rotor core, and the rotor core contains a gap formed by connecting between at least the separated permanent magnets, wherein: the rotor core is provided around a rotor shaft, the gap has a line-symmetric shape viewed in a cross section perpendicular to the rotor shaft, has a base portion on a rotor shaft side reaching a symmetry axis, and has an abutting surface that is convexly provided toward an inside from a rotor shaft side inner wall surface at a base of an inner wall surface facing against a pole face of the permanent magnet and that is abutted against a side surface of the permanent magnet to separate the side surface of the permanent magnet from the symmetry axis, the pair of permanent magnets is disposed for each gap so that pole faces (31a, 31b) face against inner wall surfaces (213, 214) of the gap over entire lengths, and a side surface abuts only against the abutting surface, when viewed in the cross section perpendicular to the rotor shaft, and characterized in that the pair of permanent magnets is separated in an inner periphery direction of the rotor core, and the rotor core contains a gap formed by connecting between at least the separated permanent magnets, wherein: the rotor core is provided around a rotor shaft, the gap has a line-symmetric shape viewed in a cross section perpendicular to the rotor shaft, has a base portion on a rotor shaft side reaching a symmetry axis, and has an abutting surface that is convexly provided toward an inside from a rotor shaft side inner wall surface at a base of an inner wall surface facing against a pole face of the permanent magnet and that is abutted against a side surface of the permanent magnet to separate the side surface of the permanent magnet from the symmetry axis, the pair of permanent magnets is disposed for each gap so that pole faces (31a, 31b) face against inner wall surfaces (213, 214) of the gap over entire lengths, and a side surface abuts only against the abutting surface, when viewed in the cross section perpendicular to the rotor shaft, and characterized in that the rotor core is provided around a rotor shaft, the gap has a line-symmetric shape viewed in a cross section perpendicular to the rotor shaft, has a base portion on a rotor shaft side reaching a symmetry axis, and has an abutting surface that is convexly provided toward an inside from a rotor shaft side inner wall surface at a base of an inner wall surface facing against a pole face of the permanent magnet and that is abutted against a side surface of the permanent magnet to separate the side surface of the permanent magnet from the symmetry axis, the pair of permanent magnets is disposed for each gap so that pole faces (31a, 31b) face against inner wall surfaces (213, 214) of the gap over entire lengths, and a side surface abuts only against the abutting surface, when viewed in the cross section perpendicular to the rotor shaft, and characterized in that the formula is satisfied between a clearance between magnets Gm as an interval between the side surface of the permanent magnet and an intersection between an extension line of an outer periphery side inner wall surface of the gap and the symmetry axis, a magnet width Wm as a length of the pole face on an outer periphery side, and a magnet thickness Tm, the magnet thickness Tm being the length of the side surface on the symmetry axis side: 0 mm < Gm × Tm Wm ≤ 0.25 mm