to be clear...this is not at the far right end of the bed where part number 4 in the below is indicated - this is in the opposite corner - on my set up, the lead screw enters the quick change gear box at the top right side, slides through a oilite bushing and terminates in a small gear with a hex screw capping it - it does not reach any where close to the back corner of the lathe bed??
Given that many of the lathes that get discussed here were built only as Change Gear machines for several years before the first QCGB models appeared, it is not at all unusual for the Change Gear lead screws to be a little or a lot longer than the QC lead screws. As you can see in NO's photo, the left carrier bearing for the Change Gear version is right at the left end of the bed.
spoke to Logan on this one - the model without a gear box has, as you guys rightly pointed out, another bracket on the LH side (mirroring the RH end) with a support bracket for the lead screw...which would go the full length on such a model)
so just like the photo NGB posted (thanks for that!)
all beds got drilled for this
if a gear box was installed, it went on and covered these holes up
Lol I had the same exact thought about those two threaded holes, when I was inspecting my lathe bed last week... I was getting the bed ready for its electrolysis bath, I didn't remember seeing them during disassembly so I went back and check my photos. The 2 holes just showed up after removing the quick change gear assembly In my photos - Really glad I take photos at different angles while I strip down machines... You can never have too many photos.
Glade you solved your fear of the Extra Holes...