Product review (1 stars): Do not buy this part or any other with the ...
Do not buy this part or any other with the metal ring in the middle of the plastic part! The original version of this part was all plastic for a reason. A few things will likely end up happening: the part won't fully seat on the drive shaft, and the metal ring will separate from the plastic portion. The metal ring will strip through the plastic part after a year, or it'll strip your motor drive shaft entirely, turning an $8 fix into needing to get a new motor, gear box and/or entirely new machine.