i want to know about rolling element bearing, sleeve bearing problems and trouble shooting for that. how can we analized from any spectrum? tell me with vibration spectrum.

What you ask for is not appropriate for this forum. I'm not trying to be rude, the answer would take pages.
Highly suggest you get some training and some good reference material as a start.
If you are asking because you are performing some troubleshooting - you might consider hiring a consultant.
Regards
Jim P