While I have never disected the design of a CRG brand axle bearing, I personally believe you would be paying for the name. I have run CRGs for the past 5 years and have tried a variety of different bearings. I currently run the SKF concentra bearings on my outer hangers. While I really like the SKF bearings because they are “serviceable” and have lasted me several years, they are quite expensive. Before I went to the SKF I tried a variety of bearings and if I were to go back to a “traditional” bearing I would buy the cheap ones and throw away as needed.
I could’ve swore that someone found a “serviceable” bearing that was much lower cost than the SKF but for the life of me I can’t find it? All I mean by “serviceable” is the design was intentionally made to take off the dust covers easily, do a thorough cleaning, apply fresh lubricant, and reinstall dust covers.