Motor, compressor, and air conditioner

A motor comprising:

• a rotor rotatable about a rotation axis, the rotor having a rotor core having steel laminations stacked in an axial direction of the rotation axis and a permanent magnet embedded in the rotor core;
• and
• a stator provided so as to surround the rotor, the stator having a stator core having steel laminations stacked in the axial direction and a coil wound on the stator core,
• wherein the stator core has a slot in which the coil is housed,
• wherein the stator core has a first core portion at an end portion of the stator core in the axial direction and a second core portion at a center portion of the stator core in the axial direction, an area of the slot being larger in the first core portion than in the second core portion, and
• wherein a sheet thickness T0 and a lamination gap L0 of the steel laminations of the rotor core and a sheet thickness T1 and a lamination gap L1 of the steel laminations of the first core portion of the stator core satisfy at least one of:
• 0.05 mm≤T0−T1≤0.15 mm and L0<L1.