608 Bearing Washer

thingiverse

By placing a bearing between two specific parts, its inner section stays secure while the outer portion remains unobstructed when rotating. This method is similar to using small inner and large outer washers, avoiding a trip to the hardware store. The STL file is customizable, allowing for simple resizing. In my Printrbot extruder, this device replaced wooden spacers that caused friction by rubbing on bearings, improving performance.