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ばね定数 巻数

ばね定数

k=Gd4/8ND3
材料	SUS304WPB SUS316WPA SW-C SWP-A SWP-B
G:横弾性係数		/mm2
d:線径		mm
D:コイル平均径		mm
N:有効巻き数		巻
k:ばね定数		/mm