Mini Mill Spindle Box Assembly, 3MT

The 3MT taper seats perfectly and the gears mesh with zero slop—I swapped out my old spindle in an afternoon and it's been running smooth and quiet since. The bearings and spacers were all in the box, exactly as described, which made the install a lot less fiddly than I expected.

Installing this spindle box was straightforward—everything from the gears to the bearings lined up perfectly with my old mini mill. The 3MT taper fit snug, and the top nut threaded on without binding. A solid upgrade that saved me from buying a whole new assembly.

Swapping out my old worn spindle was way easier than I expected, and the 3 Morse Taper fit my tooling perfectly. The gears and bearings came pre-assembled on the shaft, which saved me a ton of fiddly setup time. Runout is dead-on now.