| 摘要 |
<p>The following are supported on the upper surface of a support base: a first bearing stand in which a first bearing is positioned; and a second bearing stand in which a second bearing is positioned, and which is positioned at a distance in the horizontal direction from the first bearing stand. A rotating shaft, which is rotatably positioned in the first and second bearings, is supported by the first and second bearing stands. The support base is provided with a projecting section that projects upward from the upper surface of the support base. The first and second bearing stands are in contact with side-surfaces of the projecting section, causing the bearing stands to be positioned in relation to the support base in a manner such that the axial direction of the rotating shaft is a prescribed direction.</p> |
