The quoted post says: "made my own direct coupled spindle.
I did the lathe work myself."
I read it like he made a spindle cartridge with ER25 collet holder and, tapered bearings, the motor is in-line coupled.
In that case the motor was not modified, just attached via coupler, so the motor lives in its natural environment just putting out torque.
The thread is a good read to make up the mind. High speed, vs low speed.
Greetings Timo
p.s. the collet holder looks like this. Usually bearings fit reasonably well on the outside. I assume that is what was used.
Many thanks for clarifying
I will proceed with the original plan of drive and driven mounted next to each other with pulley/belt system.
Philip
