[Qty.1] 71455-71750 Tapered Roller Bearing Set Cup & Cone [4.531″ ID x 1.875″ W]
You will find that the QJZ brand is laser marked, and you can read it without squinting.
[Qty.2] 71455 Tapered Roller Bearing Inner Single-Cone [4.531″ Bore x 1.9375″ W]
You will find that the QJZ brand is stamped on these ball and roller bearings, which looks very clean.