Marine bearing
2Pages

Marine Bearings TD05 The most common design of gland or 'P' bracket shaft bearing consists of a Brass outer shell which is ground externally to fit the bearing housing, and a fluted nitrile rubber inner which is internally ground for optimal lubrication in service. Water clearance of 0.001inch per inch of shaft diameter is provided, with a finished size tolerance of -0.00/+0.001 inch, and outer ground tolerance to ISO p6. Sizes. These brass and composite shelled bearings are avilable to accept internal shaft diameters of 3/4inch (20mm) up to 6inch (155mm). Clementsmarine use a high precision, proprietry range of water lubricated marine rubber bearings, commonly known as Cutless Bearings. These have proven suitable and hard wearing for all applications in our range of products. The exceptional properties of nitrile rubber as a bearing material, combined with the high performance of the hydrodynamic water wedge design, make this product the automatic choice for reliable and maintenance free operation. The schematic on page 2 should be referred to in dicussions with our Technical Staff regarding this product. Alternative outer shell and rubber lining materials are available to meet customer requirements. This is particularly appropriate where the bearing housing material is not brass (the material of choice for the outer bearing casing). In this case a composite material is used to avoid accelerated corrosion due to the proximity of dissimilar metals. A wide range of both Imperial and Metric sizes are held in stock, including bearings with imperial outer diameters and metric inner bores to suit original equipment with replacement metric shafting. Information regarding all aspects of bearing design is available on request, and design proforma fax sheets can be found in Technical Data Sheets, TD12 and 13.