| 摘要 |
PURPOSE: A bearing assembly device for a spindle is provided to ensure smooth linear motion of a draw bar by preventing the contraction or deformation of a spindle. CONSTITUTION: A bearing assembly device for a spindle comprises a spindle(100), first and second bearing unit, first and second collars(120,130), first and second nuts(110,112), and a second bearing support(82). The spindle has first and second male screws(102,106) and a protrusion(104), wherein the second male screw is formed separate from the protrusion opposite to the first male screw. The first bearing unit is assembled on one side of the outer periphery of the spindle. The first collar is inserted to the exterior of the spindle to contact the inner race of the first bearing unit. The first and second nuts are coupled to the first and second male screw, respectively. The second collar is inserted to the exterior of the spindle to contact the protrusion. The second bearing support contacts the outer race of the second bearing unit.
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