Identifying an eccentric bottom bracket? I have a bike powered by a Gates belt-drive and a Shimano Alfine 11. It also has an eccentric bottom bracket to adjust the tension on the belt drive, and a SRAM GXP bottom bracket.

The other day, just by following videos on Youtube since no other help was available, I tried replacing the old bottom bracket with a new one… and it looks like I ruined the threading on the drive side of the eccentric BB: I can hand-tighten it, but when tightening it further with a wrench, it loosens again, ie. I can never tighten if fully. It looks like I'll have to buy a new eccentric bottom bracket :-/

The issue: How to identify the brand + model of that eccentric BB without taking it out (I'll need to ride it to a workshop to fix it)? There's nothing written on the sides, short of L/R:



Also, while I wait for a new eccentric BB, I was thinking of applying some medium-strength threadlock in the hope that the drive-side bearing won't move. What do you think?

Thank you.

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Edit: I cut the derailleur + hydraulic brake hoses that run through the EBB, and pulled the EBB. It's just a cheap plastic part; According to the bike manufacturer, it's a Prime Aero from a company in Taiwan.

Anybody knows where to get a replacement, with the opening in the middle to let hoses through?
Pulling an eccentric out that's not stuck is usually pretty straightforward once you've gotten the cranks off. If you want to find out the brand and model info (which might not actually be that useful anyway), that's probably the only place you'll find it, if it's there. But, if you're going to try to source a new eccentric yourself, you really should pull it anyway to get an exact measurement of the shell's inside diameter.

If this is any kind of mainstream bike manufacturer, where I would start here is calling them up and seeing if they have a replacement they can send to either you or a dealer. If so, that path is going to be about a million times easier than anything else, and probably cheaper.

I'll also mention that the framebuilding suppliers like Nova are the main source I've seen for more simple 1-piece eccentrics like you appear to have. Most of what you'll find elsewhere are the premium ones like Bushnell, Phil, and Niner.

As for the Loctite idea, with GXP there's not really any place for it to move to. I would never recommend riding on a loose cup, but people do all the time, with the main consequence being noise and play in the cranks.