How to tell if a hub uses sealed bearings or loose ones? My rear hub is dead. Tt has tons of play and I'm planning to replace it with  a  new Shimano  one. Everyone suggests me to  get one  with sealed bearings,  how can I tell if a hub uses sealed or  loose bearings? For example I'm planning to buy this one:
Link to Shimano  hub

is there any naming scheme so I can tell by the  name?
where can I verify that?
I presume you mean loose vs cartridge bearings.
They are both sealed. High grade shimano hubs are actually pretty well sealed.
I can see cone nuts in that picture, so its loose bearings.