bearing

Schaeffler seals the deal with top of line sealed bearings

Bearing failures on mine sites occur most often due to contaminants, such as aggregates, iron ore, coal or any mining material penetrating the seal of the housing. This is aggravated by poor maintenance of the equipment, insufficient or excessive lubrication, and incorrect installation.

On a mine site, water is often used to wash down equipment, leaking through the bearings, turning dust into mud, and hindering performance on production lines.

Sealed spherical roller bearings, as Tony Tormey, BSC’s product manager for industrial bearings explains, are the “last line of defence” where bearings are used in dust-prone applications in mining, such as in conveyor pulleys or conveyors in cement mills.

“Bearings in harsh conditions like mining generally have three barriers, which is the housing, the grease and the seal on the bearing. You can also fill the cavity in the housing with grease, which will act as another barrier,” Tormey said. “But despite all that, water or dust can still penetrate the housing, and that’s where sealed spherical roller bearings provide an extra layer of protection to the bearing.”

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Managing regulatory and environmental challenges to extend quarry’s viability

 

A concrete and quarrying producer has successfully sought the assistance of a consultancy and engineering specialist on a variety of complex consent applications. Read more

Optimised vibrating screens boost family business

 

A third-generation family quarrying business is maintaining its commitment to quality across changing seasons through its decades-long preference for sophisticated and optimised vibrating screens and their screen media.

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Impact drill & blast feature

Upstream tech solves downstream wear and tear

 

How you drill and blast your aggregate can be vital to how it is processed and refined downstream. Steve Price, of Impact Drill & Blast, explains why a full rock-on-ground service can ensure an operation’s quarry products smoothly make the transition from the face to the gate. 

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The art of screen dynamics: lightweight designs vs momentum

 

For efficient classification, screens need to generate more acceleration than a rocket being launched, while also being lightweight and energy-conserving. Gary Styger and Steven Hunter, of Weir, explain how OEMs are successfully employing modern design tools to create economical, yet more effective screens.

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Flexco lagging manufacturing facility

Combatting conveyor carryback and slippage

 

The Poplar Lane Quarry in New Zealand has taken advantage of Flexco’s HV pre-cleaner and ceramic pulley lagging to combat issues it faced after commissioning a modified plant.

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