Product review (5 stars): This is an updated part with a much better design. I had to replace this part twice
This is an updated part with a much better design.  I had to replace this part twice.  The original burned out at about the two year mark.... the identical replacement part also lasted about two years.  This "new and improved" part looks like it has a much better bearing..... but I guess I'll find out in a couple of years.  This part comes with a screw to mount it to the machine.  Make sure you use the new screw as the mounting hole is a little different than the original piece.