My lathe spindle uses similar main bearing check for nuts under the axial bearing if my suspicion is correct the main bearing has internal taper and the nuts are to adjust any play basically spreads the bearing . I am sorry for the bad sentence structure .
I also have both a wade no 7 and an infinite list of projects. lol. I look forward to see what you do with it!
My lathe spindle uses similar main bearing check for nuts under the axial bearing if my suspicion is correct the main bearing has internal taper and the nuts are to adjust any play basically spreads the bearing .
I am sorry for the bad sentence structure .