| 摘要 |
An expandable wheel for supporting an endless abrasive belt. The present invention relates more particularly to an expandable wheel for supporting an endless abrasive belt, which includes an hub having an axis and a plurality of wheel segments engaged with the hub, where the hub and the plurality of wheel segments are adapted to rotate about the axis, and where the plurality of wheel segments are movable between a first radial position and a second radial position. |
