7-1/4 inch axle bearings

Any ideas on finding the correct rear axle bearings for a 7-1/4 inch rear axle with 5 stud back plates and 10 inch brakes.

That same axle comes also with 4 stud back plates and 9 inch brakes. The bearings on these axles are smaller.

I've been through a lot of online suppliers, and, they don't give enough info to let you know what they are selling.......

Any help appreciated......