| 摘要 |
A shoulder bushing is provided for concentrically fastening a circular saw blade having an oversized mounting aperture, to a spindle of a rotary power tool. The bushing includes a disk having a central bore sized and shaped for concentric engagement with the spindle. An annular shoulder located on one side of the disk has an outer diameter sized for receipt within the oversized central aperture of the saw blade. The disk is provided with an outer diameter large enough to be engaged by a concave flange disposed on the spindle, by which the disk is clamped to the spindle in superposed orientation with the saw blade.
|
