H4 unveils Maritex Aquarius composite material
H4 Marine launched Maritex Aquarius composite bearing technology at Seaworks in Southampton and this material is now being trialled by navies and commercial builders.
The new grade has been developed to overcome some of the issues with marine growth reducing the life of bearings and shafts.
With seawater-lubricated shaft bearings, this is one of the main factors in system wear.
According to the company, Maritex Aquarius uses a unique structure and the surface finish of advanced polymers to help remove marine growth from the shaft.
The bearing structure also incorporates a surface chemistry that resists marine growth on the bearing itself.
H4 claims that Maritex has performed consistently better than other composites in a range of shaft, rudder and stabiliser applications, often reducing noise and vibration in the system.
H4 Marine will showcase Aqaurius, a new version of the composite Maritex bearing material, at this year's Seaworks show in June.
Linear bearing specialist igus has introduced the drylin W hybrid linear system, which is claimed to combine the advantages of tribopolymer plain and roller bearings to deliver a self-lubricating, maintenance-free system featuring low driving forces with almost silent operation. Typical sliding applications include those found on machine guard doors, camera systems, control panels, theatre lifts, stages and lighting rigs.
Light polymer plain bearings from igus are used to handle severe stresses at the dropouts of the rear suspension of the Contrail MGN bike.
Revolvo split roller bearings — available from ERIKS Flow Technology — have been designed and developed to maximise service life and minimise maintenance effort.
MRI and CT scanners, hospital and other medical furniture and physiotherapy and laboratory equipment are all becoming increasingly complex and compact. Hygiene and cleanliness are top priorities for these applications, and medical equipment manufacturers are looking to igus for sophisticated positioning systems.