What is an 'arbor nut'?

On the arbor shaft, next to the motor housing and the bearing, is a collar I put on to replace the nut that originally had been on the shaft. That nut, as well as the original rotor shaft/arbor, each had a hole where a spring pin was placed to keep the nut from traveling along the arbor shaft. read more

I need the size of the arbor nut on a table saw, model 113.298720. The on line parts list says it is 1.25 x 1.25 x .37, but I have never seen a nut described that way. A standard 5/8 x 11 doesn't fit. read more

Use this Delta Table Saw Arbor Wrench for tightening and loosening the arbor nut on blade. Made of steel material for durability. read more