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Quarrying and Aggregates

Quarrying and aggregates processing is characterised by challenging conditions and quarry industryhigh volume production.

Bearing applications are prone to high levels of contamination from process materials (and are often open to the elements) and high/shock loads and vibration.

Key industry drivers include:

  • Plant Reliability -The high volume 24/7 nature of the industry means unexpected failures need to be avoided and stretched maintenance schedules mean products are expected to last longer between planned maintenance windows.

  • Operating Safety - Tough rugged and reliable bearing solutions are needed to ensure the safe operation of large, heavily loaded plant and equipment. With traceability of product key to avoiding the risk of old or counterfeit bearings.

  • Quick and easy replacement - With plant often located in remote locations a supply partner with extensive local stocks, knowledgeable staff, national logistics network and as an authorised distributor with ready access to partner supplier stocks is essential.


Common bearing applications include, crushers, cone crushers, impact crushers and jaw crushers, vibratory screens and conveyors. Key factors affecting bearing performance include:

  • Contamination - Process material can be the very thing a bearing doesn’t want inside it; hard and fine powders can quickly ruin a bearing if they gain access so the right sealing solution means not just a heavy duty seal but often one which allows the bearing to accept misalignment.

  • Heavy duty cycle - High loads, shock loads and vibration are a challenging mix.  Vibration is particularly challenging for bearings to handle and special versions of spherical roller bearings exist (such as SKF VA405) which ERIKS can help specify to improve the reliability of your application.

  • Lubrication - ERIKS also offer a range of EP (Extreme Pressure) bearings greases for heavy duty applications. EP is an additive designed to minimise the tendency of metal surfaces to weld and seize under conditions of extreme localised loads, prevent wear under mixed-film and boundary lubrication. 


Key products and solutions:

Revolvo SRB
Revolvo Split Roller Bearings (SRB)
Fully split to the shaft Housed Cylindrical Roller Bearings with brass cages, perfect for trapped applications, where surrounding equipment would have to be removed (couplings, motors, gearboxes etc.) to fit a normal bearing.  With brass cages and seals which move with the bearing during misalignment to ensure no sealing gap occurs, SRB’s are ideal for heavy duty and contaminated applications
Spherical roller bearing solid block housed units
Timken Spherical Roller Bearing Solid-block Housed Units (formerly QM Blue-Brute)
Timken® spherical roller bearing solid-block housed units are designed for the most challenging circumstances. Made with cast-steel housings and Timken high-performance spherical roller bearings, these are the only spherical roller bearing housed units to offer steel solid-block housing as standard.
Spherical roller bearings
Timken E Design Spherical Roller Bearings
Premium spherical roller bearings with a new cage design for better purging of contaminants, optimised internal geometry to provide axial roller guidance and improved lubricant distribution. Increased bearing life through even load distribution all from the only major bearing manufacturer that makes it’s own super-clean, high alloy bearing steel.
SKF explorer upgrade
SKF Explorer Upgrade
SKF have launched the next generation bearing steel for self-aligning roller bearings giving increased hardness while maintaining or improving toughness resulting in twice the service life in contaminated and poorly lubricated environments.  These SKF Explorer bearings will run longer - particularly under challenging operating conditions.
Spherical roller bearings
NSK’s HPS™ Spherical Roller Bearings
State-of-the-art material technology bearings, offering high speed and load ratings that can enable equipment downsizing and are suitable for a wide variety of applications, gives the highest load rating spherical roller bearings with temperature stability up to 200°C.
The latest version of the most popular medium to heavy duty bearing housing.  Now made from a stronger material grade resulting in a stiffer and more robust housing, better able to withstand deformation.  Improved load carrying capacity to match performance of latest SKF bearings, improved rust protection and easier to keep clean with a sleeker design.
Timken SNT
Timken SNT metric plummer blocks
Durable cast-iron housings designed to protect the bearing while resisting the harshest environments. With four seal types available to meet the widest range of application needs they are readily available from ERIKS stock.