[JSeery]

Not promoting these at all, but just happened across them and found them interesting.

3/4"-Inch Precision Ball Bearings - Qty 4
Made of Hardened Steel - Double Inner-Raced
Completely Sealed - No Need to Grease
Ideal for Heavy Duty Loads, Every Day Use, Environments with Dust and Debris
1-3/8-Inch outside diameter. Standard for most hubs

4 bearings for $7.99, that's $2 a bearing. These are the wheelbarrow style/type of bearing.