At work we have a 5-6 year old Delta Unisaw that we keep setup mostly for cutting dadoes. We replaced the arbor about two years ago because the threads developed wear in the area where the stack dado chippers would be, making it impossible to use a blade. Only the very outer end of the shaft would still hold the nut. Now the second one is worn out as well. We have only used quality blades, Forrest and Freud.
Our Powermatic saw is over 14 years old and handles the bulk of the work with no such issues.
Has anyone else heard of problems like this being reported by others Unisaw users ?
Our shop manager hasn't had much like, so far, finding replacement parts that are in stock. Any recommendations on who to contact?
Since the second one also wore out so fast I wondered if it would pay to have a machinist make one from a higher grade of steel. I don't think the boss will go for that option but I still think it should be considered. What do the rest of you think?
Thanks for any and all suggestions!
Lenny
http://www.heartwoodmillworks.com/