While replacing the chain and sprockets I noticed that the rear axle has a bit of play, so I decided to replace the bearings too. While waiting for the replacement parts to arrive I had it taken apart. Fast forward about 2 months and ready to put it back together, but I noticed an issue when tightening the rear axle nut. Since some time has passed, I already forgot how hard it was on, but I found some other discussions about the proper torque being around 200nm. Since it's unlikely I have that much strength to hand tighten the nut, I suspect something is wrong because I do not have to tighten the nut very hard at all to make the axle to seize up completely. Have I put it back together incorrectly or forgot some part, or does the axle loosen up if I tighten the nut past some point? It feels wrong so I thought I'd better ask before I completely destroy it by overtightening.