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I have found a very simple way for us shade tree guys without a press to install the bearing cups into the brake hubs. When I 1st did this I would tap the cup into the drum hub as far as the top surface then carefully tap it home using a drift or punch. They are fairly tight so I was always afraid of the punch/drift slipping and marring the bearing face. (Brass ones had a habit of chipping away at the edges so I could not get a firm hit.)I would put the cups in the freezer for a while to help but there was still a chance of damaging the new cup's face.
Then I realized I had a built in tool with the old worn cup! Take the worn cup to the bench grinder and slowly grind away its outer diameter. This is not a precise grind and is easy to do by hand by letting it spin on the tool rest and apply light pressure until you have the old cup so it will slide easily into the hubs bore. Keep a water source near by as it will get pretty warm as you do this as it is very high quality steel. Now that the old cup is able to easily slide into the bore, place the new cup on the hub and tap it down flush to the top surface. Now place the old cup fat side down on top of the new cup and tap on its top surface until you have driven the new cup to the bottom seat. No need for a punch or drift and no chance to mar the new bearing's surface. I use a marker and write the car detail on the old cup and hang it on the peg board for next time. They never wear out!

Neat solution. I have also used PVC and ABS plumbing fittings as driver tools to install wheel bearing seals. I finally bought a seal driver kit, but the other way worked just fine.