Quarrying, Mining, & Construction

Quarrying, Mining, & Construction

Mining and construction equipment are often used in remote areas, such as mountains, deserts, or even 2,000 meters below ground. Widely different machines are used—from crushers, grinders, and excavators to sifters, screens, loaders, and transporters, with many operating continuously. This 24/7 operation means that breakdowns have a major impact on production, with repair often difficult due to the equipment’s size.

Bearings in mining and construction face extremely challenging conditions including:

  • Heavy loads with impacts/shocks
  • Light loads with high-speed rotation
  • Heavy loads with low-speed rotation

As machines critical to building society, bearings in mining and construction equipment must be tough, long-lasting, and highly reliable.

NSK combines the very latest in design with our core technologies in materials, lubrication, and analysis to offer bearings that go beyond the limits of convention. NSK bearings provide both long life and high allowable speeds, increasing productivity and lowering maintenance costs in even the harshest sites while working toward more environmentally friendly operations.

NSK Experience & Technology

Roller Bearings

As mining and construction equipment operate in sites around the world, most bearings used in the industry are standardized by ISO and take maintenance into account. Never settling, NSK developed bearings with the top specs in the world. 

  • NSKHPS™ High Performance Standard Bearings for Industrial Machinery: Spherical Roller Bearings
    With the latest cage designs and special surface treatments, NSKHPS bearings use the latest materials for greatly increased load capacity and longer life.
  • EM Series Cylindrical Roller Bearings
    A machined one-piece cage allows for an increase in both roller size and the number of rollers, greatly improving function in this new generation of CRBs with exceptionally high load capacity and long life.

NSK continues its development efforts day-in and day-out to provide the mining and construction industries with the utmost in function, performance, and reliability.


NSKHPS High-Performance Standard Bearings for Industrial Machinery: Spherical Roller Bearings

NSKHPS SRBs provide a longer service life and higher limiting speeds by employing cutting-edge materials and technology combined with years of cultivated experience and technical know-how.


  • 2x bearing life (25% higher dynamic load ratings)
  • 20% higher limiting speeds
  • Dimensional stability under high-temperature conditions (Max. 200°C)

EW/EM Series Cylindrical Roller Bearings

EW/EM CRBs feature cages with higher load capacity, low noise, and superior strength.

These standard bearings provide high performance across varied applications.

Browse NSK cylindrical roller bearings ->


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