I got this extra wheel with an old Huffy 3-speed. It came with a 26x1 3/8" tire. I removed the original front caged bearings which were horribly gummed up. The LBS didn't have caged bearings to sell me so they gave me 10 loose bearings per side (same size as far as I can tell). I put grease and 10 bearings in per side, then tightened the axle but there's still some up/down and side/side play with the wheel and axle. If I tighten it further the wheel can't turn freely on the hub. Right now I have it as tight as would allow it to turn freely. What am I doing wrong? I tried taking one bearing out and it didn't seem to make a difference. Should I take more out? They're not aligned as the caged bearings were in a neat circle despite my efforts to seat them that way originally in the grease.
There is a gap between the cone and the wheel as you can see in the pictures.