Vesconite and Vesconite Hilube Bearings - Standard, Supercl…

Machinery Components

Stern Tube and Rudder Bearing

Vesconite and Vesconite Hilube Bearings - Standard, Superclad, Staves & Superstaves.

Product Description

Polymer based bushings for propeller shafts and rudder bearings are available in (4) options., Option 1:, Standard Vesconite Bearings are machined from the cylindrical stock to the required inside and outside diameters. , Option 2: , Superclad Vesconite Bearings are based on the standard Vesconite bearings which have been built up on the outside diameters with reinforced epoxy resin laminate and finish machined to the required outside diameters. , Option 3: , Vesconite Staves are machined from the plate stock to standard specifications for fitting next to one another in a bearing housing. , Option 4: , Vesconite Superstaves are interlocking staves which have been epoxy bonded to produce a cylindrical bushing with the required internal diameter and built up on the outside diameter with reinforced epoxy resin laminate., , The outer diameter may be built up with reinforced epoxy resin laminate to the required final outer diameter with a minimum built up thickness of 2 mm for bushings 100 mm outside diameter and upwards. The thickness of the Vesconite bushing will be in excess of 15 mm for grooved propeller shaft bearing and 10 mm for ungrooved rudder bearings. , , In addition to the Vesconite bearings above, Vesconite Hilube bearings are also available in (4) options.

Product Ratings

Rating Propeller Shaft Bearings: | The length of the synthetic bearing, next to and supporting the propeller, is to be not less than four times the required tail-shaft diameter. The length may be less than four times, but not less than two times the required tail-shaft diameter, provided that the bearing design is substantiated by experimental tests to the satisfaction of the Bureau. See 4-3-2/5.15.1 of the Rules and 4-3-1/13.1.2 of the Rules. | Rating Rudder Bearings: Maximum design pressure is 11N/mm2 for specific installations with the length / diameter ratio of the bearing surface not to be greater than 1.2. Request for bearing arrangement of length/diameter ratio greater than 1.2 is subject to special consideration provided that calculations are submitted to show acceptable clearance at both ends of the bearing. See 3-2-14/15.1.1 of the Rules and 3-2-11/15.1.1 of the Rules. Higher maximum allowable bearing surface pressure may be taken provided that the bearing design is verified by experimental tests to the satisfaction of the Bureau. See 3-2-14/Table-6 of the Rules and 3-2-11/Table-6 of the Rules. | Consult Manufacturer for sizes, material properties, friction and wear.

Applicable Standards

Manufacturer's Standards