Shopsmith Forums

Any SS 5/8" arbor will work as long as the threaded shaft is long enough, spacers provide proper positioning on the shaft(nut fully engaged, but no excessive protrusion of the shaft beyond the nut) and loosening rotation of the nut is eliminated.

Later versions have a very short threaded shaft with no spacers. If you are getting the arbor for that blade, I would suggest the newer(shorter) one and permanently mount it to the blade.

I believe the newer 5/8" arbors are 'auto registering' to the blade slot and that is the reason for model dependancy.

ddub wrote:Then why do they say the blade arbor is different?

My insert is rounded on both ends, so I am going to order the 500 unit. They state that stock is low. We shall see.

The 500 arbors are different(shorter) than the other(3). 3 models, one table/arbor version for all 3.