I don't think it's a Dick Allen wheel per se, I think it's a Cragar Quick Trick wheel somebody else did in the same style as one of Dick's wheels. Dick didn't make any 16" Quick Trick wheels (there weren't any 16" Quick Tricks), he made the 15" rears, and a few 17 x 2.5 fronts. Also, Cragar at the time advised that they were a "race only" wheel, and not recommended for street use, and they were tube-type wheels. They weren't sealed like the Centerlines were.
Dick used four H-D mid-star ball bearings in his hubs, the hubs were two piece - a pair of bearings in each wheel hub half. The wheel hub above is also done in two halves, but the bearing on the L/H side appears to be a tapered roller set up like an earlier FXWG hub with the snap retainer ring, inner cover disc, and small spacer that sits in the wheel seal would have been done. The sprocket is a Circle Ind., you can see the blue/silver sticker.
The bearing you see on the R/H side of the wheel isn't the wheel bearing, it's the sealed bearing that Grimeca used in the center of their rotor carriers for support. I'm pretty sure that's a Grimeca rotor on there, measure it, I'll bet it's 10 1/4" in diameter. Grimeca made a bunch of different style center carriers and rotors. Just about everybody who was doing the solid wheels, mag wheels, and the 12 spoke wheels - Dick Allen, Perf. Machine, Hall, Morris Ind., Cal Mag, etc all used the same components as far as rotors and sprockets go.
The allen bolts that hold the wheel halves together look to all be non original one's. You can still get the replacement OEM bolts/washers/nuts bagged up in a set - most of the time with the Crager installation sheet with the torque specs - on Ebay all the time for reasonable money.
So, the next thing you need to do is take the hub apart, and see exactly what you have in there as far as bearings goes. My guess is that it's somebody's copy of a DA wheel.