I have a Saab 9-3 (98-02 version) as a learning project. I have no experience maintaining cars. While entirely rebuilding the front suspension, I forgot to fit the circlip on the outside of one wheel bearing. I pressed in the wheel hub, and the whole strut is now complete, on the car, with bolts and hub screw hand tight for now.
I googled around, and apparently this is a common newbie mistake. Everyone seems to recommend putting the circlip even if it means replacing the bearing, but nobody seems to have any reason for that.
Saab's workshop manual usually has some technical overview of their cars' systems, but the front wheel hub is an exception. I can only see the bearing referenced as "angular contact ball bearing" in the Saab parts catalog. Still, the inner races seem pressed between the axle's outer joint and the hub once the nut is tightened, and I expect the bearing to not be able to slide away once that happens.
So, is it imperative for my security to to get a bearing with two circlips in there? If my mistake just shortens the lifespan of the bearing, I'm tempted to let it live however long it can.