在起始条的每个需安装螺钉的孔中间，用记号笔作记号，并取下起始条。
Should be installed in the Start strip of each screw hole in the middle.
注：可能有必要钻一个小孔，直径为螺钉的两倍大，用探头来接触突出的安装螺钉。
Note: It may be necessary to drill clearance holes, twice the diameter of the screw, through the probe to accommodate projecting mounting screws.
有径向凸缘及在与轴承轴心线垂直的支承表面上有供其安装用的螺钉孔的一种座。
A radial flange and in line with the bearing axis perpendicular to the bearing surface for the installation of a screw hole with a seat.
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