| 摘要 |
PROBLEM TO BE SOLVED: To provide an inner rotor for a fluid pump, which can be easily assembled to an outer rotor.SOLUTION: An inner rotor 2 includes a rotor part 4 that has a through-hole 5 along a rotational axis X, and a shaft part 6 that is fitted into the through-hole 5. Fitting strength of a partial area 5A along the rotational axis X from either of surfaces of the rotor part 4 on an inner surface of the through-hole 5 and a partial area 6A of an outer surface of the shaft part 6 is set higher than fitting strength of the other areas 5B of the inner surface of the through-hole 5 and the other areas 6b of the outer surface of the shaft part 6. |
