My trailer is Dri-Doc Inc Mdl. BB21275V made Midway Ar. and last weekend I started to repack the bearings out and it turned to be a week of hell trying..
the trailer axle spline is 1-3/8" inner size but it uses the following parts..
Outter Bearing 44649 with Race 44610
Inner Bearing 68149 with Race 68110 (they give me 68111 which is 1/32" or so to big.)
Grease Seal 16657 (473317)
I wished I have wrote down the numbers of the hub.
Hopefully this will help someone out before going thru all the wrong parts..