Using the hexagonal head bolt to fasten the axle clamp shrunk to narrow seam to hold the axle center firmly.
利用内六角螺栓拧紧的力量来使轴夹收缩进而使狭缝收缩，将轴心紧紧夹持住。
The utility model discloses a force driven fixing structure for axle center which comprises gear or synchronous belt wheel, axle clamp and inner hexagonal head bolt.
一种力传动的轴心固定结构，包括齿轮或同步带轮、轴夹及内六角螺栓。
If neither part is threaded a bolt must be used: this consists of a screw with a hexagonal head.
如果两者皆不的部份被穿线于门闩一定被用：这用一个六角形的头有螺丝钉。
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