| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor wherein the strength of a bearing is sufficiently ensured and further size reduction can be accomplished. SOLUTION: The motor 1 includes: a rotor 10 having a permanent magnet 12 bonded to a rotating shaft 11; a stator 20 having a rotor insertion hole 13 in which the rotor 10 is inserted; the bearing 30 that supports one end 18 of the rotating shaft 11 of the rotor 10; and a bearing holder 40 having a bearing insertion hole 15 in which the bearing 30 is inserted. The motor is so constructed that a relation expressed as A<B<C holds, where A is the outside diameter of the rotor 10, B is the inside diameter of the bearing insertion hole 15, and C is the inside diameter of the rotor insertion hole 13. COPYRIGHT: (C)2007,JPO&INPIT
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