Originally Posted by
repechage
Have a few bottom brackets, no crank sets.
At the bike shop long ago, Edco was one of the brands that received NO grease film, but completely dry for assembly, Campagnolo's traveling tech guys would demo the so very minimal grease film they employed, but the guy who did that with the Edco cranks regretted it.
I have one Edco BB that just developed a clunk, not looking forward to chasing down new bearings, so it goes.
The bearings in the EDCO cartridge are, iirc, standardized size ones, which are readily available at machine parts dealers, and can be replaced without much hassle.
The low "resistance" may be due to the fact that the tapers are chrome plated. This makes them a bit tricky to install even with ISO cranks. I don't recommend using them with campagnolo cranks. The cups and counter rings are alloy and quite soft so they require high quality tools and a lot of diligence. Also measures to prevent the alloy cup to bond eternally to the steel bb housing of the frame are called for. Overall a nice bit of bike gear but a bit over-engineered in my opinion.