Maprom intermediate shaft bearings are used for supporting shafts between the engine and the propeller shaft. They are self aligning and show long service life. 
Maprom Engineering has second to none experience when it comes to water lubricated propeller shaft systems especially designed for demanding commercial vessels. Maprom Scope of Supply ranges from water lubricated propeller shaft turn key deliveries including engineering to delivery of standard or customised parts.
The Maprom GS Seal was developed by Maprom Engineering in order to meet the increasing demand for an efficient, reliable and environmentally sound water lubricated propeller shaft seal for commercially operated vessels. The most important advantage of an axial seal is the absence of wear on the propeller shaft, its simplicity long lifetime and easy maintenance.
Maprom is the general European agent and stock keeping distributor of Duramax Marine LLC. As such we have a very large stock available of their products. Our Johnson Cutless ® water lubricated bearings, are well known for their second to none quality and durability. They are recognised to be the best available in the market, characterised by a low coefficient of friction and their inherent vibration dampening.
The tough and wear resistant NCB Nickel Chrome Boron coating results in a perfect bearing counter running surface. As the liner will stay in better shape the bearing surface also benefits. It is not unusual for NCB shaft sleeves to last significantly longer than conventional liners.
The Maprom MK Separator offers the solution to automatically discharge abrasive particles out of outboard water for optimal bearing lubrication. We can achieve a 98% particle removal of particular size and weight. No blocking filter inserts are required.
The Johnson® Demountable Keel cooler and Duracooler® are surface coolers. These coolers are mounted outside against the ships hull. Unlike bun coolers, they have the advantage to save expensive engine room space, while the upward pressure and stability of the ship remain completely unaffected.
Maprom specialises in the retrofit of Glacier type centrifuges to existing engines. Our oil cleaning solutions are designed to operate at higher oil pressures and thus removing larger quantities of non combustible material out of the lube oil. Cleaner oil reduces engine component wear and helps prevent full flow filters from blocking. It is not uncommon for our systems to operate for longer running hours with the same oil when engines are changed from MFO to HFO.
Since 1969 Maprom Engineering, based in Dordrecht (The Netherlands), is specialised in water lubricated propeller shaft system solutions. Maprom Engineering's stern tube bearing and sealing systems are successfully used in professional 'Heavy Duty' applications for primarily the professional workboats and luxury mega yachts. Leading innovative inland, seagoing, navy and dredging vessels nowadays are equipped with Maprom state of the art products.
Water lubrication
Water is the ideal bearing lubricant because it is environmentally sound, non compressible, its cooling property and unlimited availability at no cost.