Throwout bearing self aligning or standard

I agree, its really just my own curiosity. What normally goes bad first? the bearing or the clutch?? I drove the bjesus out of my old ranger..replaced the clutch and bearing but only because the clutch was toast..clutch was going again before I sold it but the bearing was holding up just fine


Now my curiosity is kicking in.. what is the first sign of a throwout bearing going bad?