ok, i got a tool and took out the thing in the pics, now how do you get the crank shaft/bearings out?
You remove both sides with the same tool. One side has just the ring, and the other side will take the whole cartridge out. Remember that the drive side is probably reverse threaded, meaning you'll turn it clockwise to loosen it. As mentioned before, you only need to remove these cartridges when you want to replace them, or if there's a creaking problem that you need to resolve by greasing the threads and re-installing the cartridge. As Hillrider says, the bearings and internals of the cartridge aren't serviceable.