Other than the 1st “standard” bearing set I saw listed on rock auto.com, at least some of the other “replacement” bearing sets were listed as roller bearings.
Maybe still of some help???
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)