Port use quayside container crane, rubbertyred container gantry crane, bulk cargo, ship unloaders, stacker-reclaimer, gantry crane etc. they are all working in the open area, with the condition of heavy load, corrosion, difficult to lubrication. LYNBC could design and manufacture all kinds of bearings for ship industry, which can receive heavy axial load, radial load and tilting moment, with the structure of double seals and self-lubrication will meet the different working conditions and have longer lifetime.