| 摘要 |
PROBLEM TO BE SOLVED: To adjust torque by forming a non-magnetic plating film on the front surface of polar plates at the side of a stator, and selecting the thickness of the film. SOLUTION: In a stepping motor for a pachinko game ball shooting machine and its torque adjusting method, the non-magnetic and metallic plating film (21) is formed on the front surface of the polar plates (4 and 7), and the thickness of the plating film (21) is selected, so that a magnetic flux density is changed. Thus, the torque is changed. COPYRIGHT: (C)2003,JPO
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