Bottom bracket help!

right i have a sealed shimano bottom braket no lock ring on it, i have removed the threaded ring on the no drive side but cant loosen off the other side that is attached to the whole bottom bracket!

using the correct tool and have had it in a bike stand with big breaker bar attached and still wont move!!

someone must be able to shed some light on this problem!??

Make sure you are turning it the correct way.

BB shells have one side reverse threaded - check to see which way yours must be turned to loosen - the Shimano website might have a PDF for that BB.