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Bearings - 21/04/2010

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Integrated Bearing Assemblies for Vibratory Screens

NSK's Integrated Bearing Assemblies Provide Substantial Cost & Installation Savings for Vibratory Screen Manufacturers

 

NSK’s integrated bespoke screen units are providing manufacturers and repairers of vibrating screens with all the benefits of cost and installation savings at Hillhead 2010. The screen units are individually designed by NSK to meet manufacturer’s requirements. They integrate high strength housings, vibratory-specification bearings, seals, bolts and washers, into bespoke assemblies that are pre-greased and ready to install. This reduces inventory, installation and warranty costs, and brings the security of a single source supply.

The screen units deliver all the proven benefits of integrated assembly to the quarrying/extraction industries, helping to improve the competitiveness of screen manufacturers in a number of key ways. First, all of the design work and unit assembly is undertaken by NSK, reducing in-house design, and purchasing and stock holding costs. Second, the screen manufacturer does not have to undertake in-house sub-assembly, and final assembly time on the machine is reduced substantially. Third, installation does not require a separate “clean” bearing assembly area, or in-house heating equipment for fitting bearings into housings.

The bespoke bearing assemblies comprise SG iron high strength housings, integrating CAM-VS vibratory specification bearings, labyrinth and contact seals, to deny the ingress of contaminants, and bolts and washers. The assemblies are pre-greased and ready to fit, with bearing location features and provision for re-greasing.

The CAM-VS series of spherical roller bearings used in the integrated screen assemblies are designed specifically to provide improved bearing life under severe operating conditions, reducing levels of both vibration and noise by between 50% to 60%.

The vibratory specification of the CAM-VS series provides increased fatigue strength against the effects of vibration and shock loads conditions. The bearings are manufactured from high cleanliness steel to improve their operating life and are equipped with brass cages to combat the effects of vibration, operating fatigue, wear and corrosion.

“The cost saving and ease of installation benefits of integrated assemblies are well understood and appreciated across a number of key industries,” said Steve Wilkinson NSK’s Sector Engineer for Quarries and Mines. “We are now bringing these same benefits to screen manufacturers, but with the added advantages of bespoke design and the ability to re-engineer existing designs to achieve key performance improvements.”

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