I think John H has one ring... won it against his brother Jim and the 49'ers back near the end of Ray Lewis career.. at least thats what my memory says.
plenty of guys in the NFL slave away at different levles for years and never get one chance.
Andy Reid is a good example,, well respected guy back with the Eagles, never got it done there and it wasn't until Mahomes and Co that Andy finally got that ring ( he has 2 now).