Not a polaris guy but the pre-diamond drive Cats used Fafnir (bought out by Torrington bought out by Timken) and the PN were ra100rrb clutch side jackshaft and ra015rrb chaincase side. Drive shaft were ra100rrb and gra100rrb. The boggies were 6205 2rs.
Too bad you didn't live closer to me, I work for the largest bearing and power transmission distributor in the US and we buy direct from most major bearing mfrs.
By the way, NSK or NTN will not sell directly to you. We buy by the semi load. I spoke to my NSK guy yesterday and today.