GMP Marine Cutlass Rubber Bearing

GMP is one of the world’s most trusted names and leading manufacturer in the marine industry for over 47 years. Our bearings are now sold and used in more than 60 countries. Our bearings are used in rudder, shaft and stern gear applications for all types of marine vessels from naval ships, cargo/container ships, tankers, ocean liners, luxury yachts to harbor tugboats, trawlers and coastal fishing boats.

Our high quality standards, unmatched marine experience, backward integration, In-house production facilities and decades of water-lubricated rubber bearing research has resulted in offering Marine bearings with performance and endurance that lasts.

With continuing research and advancements in product technology, GMP Marine Cutlass bearings now exceed US Navy specifications in critical parameters like Tensile strength, elongation and bond strength.

GMP Marine Cutlass Rubber bearings are made to the highest quality standards, in materials, workmanship and dimensional accuracy (Clearance and tolerance is as per U.S. Navy Standard,). Our products meet or exceed MIL-DTL-17901C Class II requirements.

Our bearings have proved its mettle by operating in the toughest conditions ranging from the arctic to the tropics, in shallow waters as well as high seas.

Our standard bearings cover a wide range of shaft diameters from 25mm to 400mm. (Bespoke sizes can also be made on request).

All GMP bearings are lined with a proprietary formulation of extremely tough chemical and oil resistant Nitrile rubber perfected over decades of research and development. The rubber is extremely tough and resistant to swelling, as well as exposure to chemicals and oil. This Nitrile rubber compound is molded and bonded to metal (Naval Brass) or non-metallic shell. The bond strength between the shell and Nitrile rubber lining is an industry leading 235 PSI (16.5 Kg/sq. cm)

The inner groove design of GMP bearings combined with proprietary Nitrile rubber lining create a hydrodynamic lubricating film to separate the bearing surface and the shaft even at low shaft speeds. The unique shape of our bearing grooves is designed for maximum lubricating water flow and dissipation of heat. Abrasive grit is flushed out through these grooves, protecting the shaft as well as the bearings from damage.

This helps to reduce wear on the bearing surfaces in environments with high sand and other abrasive particles, as found in shallow water.

The bearing is designed to let these abrasive particles pass over its surface and into the grooves where it is flushed out by water feed pressure. This system prevents these particles from getting embedded into the bearing surface and causing severe wear on the propeller shaft.