small bolt pattern wheel bearings

NAPA
Seal # 17110
Outer Bearing BR2
Inner Bearing BR6

In looking at these on NAPA's website, there seems to be two different versions of each of the bearings available, at different price points.
One is a 'Proformer' bearing, and the other a 'NAPA' bearing, which at least in the picture, says "Made in USA". The NAPA branded ones are also more expensive.

I was also curious, based on the application notes on NAPA's site for these. Both say "w/ 11" Brakes;w/ 10" Brakes". Is it safe to assume that the Kelsey Hayes disk cars use the same inner & outer bearings & seals as the 10" drum brakes? If you see an application note that says "11" brakes", would that be an indicator of the disk brake application?