Bearing numbers help

JT328 to: 11a5774
11a5774 to: 20-0009154 ="new white number"
20-0009154 to 71x7055 Garlock or 78x9994 Persion seal "owned by the same company"
71x7055,& 78x9994 to: 9997 CR "chicago Rawhide"

The bearings are a different story. MM brakes the race"cup" down as a part number and then the bearing itself. That is where trouble begins. Most manufactures any more on that small of a bearing sell both pieces as one whole unit therefore giving it only one number. But this is what I came up with. Using my MM hotline and MM cross reference books forward and reverse 1986 versions.

JT9201 to 32c "No name given Timken I think".
JT9202 to 31bc " Same here as well Timken?"

Both of these supersedes to a newer number in my books and as one part number as well both parts.
JT9201 & JT9202 move to a set number "both pieces" to JT2326.
JT2326 to: 10R429
10R429 to:10A8754
10A8754 to: BE733 or BE733a "Bower/BCA"
This also crosses to 1013185m1 with which I have no idea what bearing manufacture that is. It also moves to two different "GM" numbers of GM103898 & GM172592. GM numbers are General Merchandise and those are generic numbers that MM gives to a part that they may buy from more than one manufacture. Example of that is: A hundered different seals in aparts bin together on the "GM" number some maybe CR, some maybe national, or stemco. All fitting the same housing or shaft or what ever. I hope this helps. If not I can go deeper by calling a bearing house near me.

The bearing numbers don't show up in the 1965 substitution list.

The seal JT328 is substituted by 11A5774. That is still a Minneapolis Moline #. It does not show up in my National Oil Seals master interchange catalog.
What I suggest is to mike your shaft where the seal goes and to mike the I.D. of the hole and order a National oil seal to fit.