A year ago I had to start up a pump driven by an 800 HP electrical motor with a thrust roller bearing on the top of it. The motor was brand new but was shipped from the original manufacturer dry. The bearing was oil lubricated and the manufacturer recommended turbine oil. I was in the middle of...
Has helix direction any influence in unscrewing a threaded element? Would appreciate advise in this matter. Has to design a compression spring for a valve disk, whose cage is threaded to the valve seat body. Do not want to lock the cage to the valve seat due to disassembly difficulties.
