Hydraulic nut is widely uesed in all kinds of ship shafting and rudder system，machine tools，bearings，gears，large interference fit joint of hydraulic mechanical equipment etc.

    Can produce many kinds of different sizes of WTYYM serieshydraulic nut

     How to work：When installing the propeller，the use of high pressure oil swell the propeller，the propeller by hydraulic nut pushed to the designed position，removable the high pressure oil，tighten the hydraulic nut，To dismantle the propeller ，as long as the hydraulic nut loosen，the propeller and propeller shaft cone into high proessure oil，screw can be well removed from the propeller shaft