| 摘要 |
A structure for securing a cylinder drive gear to a cylinder shaft in a printing machine comprises a cylinder having an end shaft, a cylinder drive gear inserted and fixed by bolts onto said end shaft, a pair of taper rings with their taper faces being in contact with each other, one of said taper rings being mounted on said end shaft such that the movement in the axial direction is limited by said cylinder drive gear, another taper ring being mounted slideably on said end shaft, and a device for tightening said another taper ring toward said cylinder drive gear so that both taper rings expand in the radial direction.
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