March Indy cars used quite large Tapered Roller Wheel bearings.
We had sets for qualifying that BB had put fine lapping compound in & had 'run them in', & then washed out the lapping compound & built the uprights. Supposed less rolling resistance. Cone retained by bolted ring. Don't remember how preload was set.
Remembered the preload on March uprigjts was a hardened steel spacer that you had to use a surface grinder w/ magnetic chuck to make sure surfaces were parallel. Lathe not good enough & not all teams had surface grinders.