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ULTAGE® Spherical Roller Bearings

NTN-SNR spherical roller bearings meet all applications with high radial loads.

ULTAGE® Spherical Roller Bearings

They accept shaft deflections and misalignment between the shaft and housing.

Unprecedented KIZEI® spherical roller bearings

The first spherical roller bearings with metallic shields are proposed in the KIZEI® bearing range. This innovative solution created by NTN-SNR is easy to use and offers production output and equipment reliability optimisation, while reducing maintenance costs.

KIZEI®, the viable alternative for dirty environments

Advantages offered by KIZEI®

  • Protection against external solid contamination thanks to metallic shields
  • Improved lubrication due to better grease retention inside the bearing
  • Longer bearing life time compared to standard open bearing
  • ISO dimensions – 100% interchangeable with standard open bearing

Premium characteristics

  • ULTAGE load ratings and speeds
  • Nitrided steel cage and shields for better shock resistance
  • Wide working temperature range (-40°C up to +200°C)
  • Initial lubrication process similar to open spherical roller bearing (bearing delivered without grease) – Reduced in service lubrication frequency
  • Similar misalignment to open spherical roller bearing – Possible internal inspection to facilitate maintenance
  • Mounting elements and procedures are identical to that of a standard bearing – For tapered bore, internal clearance checking is possible after mounting.

Bearings that help your production

High-performance bearings

  • load capacity increased by optimisation of the contact surfaces and the quality of steel,
  • sheet metal cages that are processed to increase their resistance and allow better contact with the rollers,
  • increased operating speeds with improved kinematics,
  • dimensional stability up to 200°C due to suitable thermal treatment.

Reduction in the LCC (Life Cycle Cost)

  • improved kinematics results in a lowering of the bearing torque and lowers the operating temperature and power consumed.
  • the useful life is increased thanks to the exceptional endurance of ULTAGE® bearings.
  • the intervals between maintenance periods are significantly lengthened. Less frequent maintenance operations significantly improve the usage rate of the equipment and therefore their productivity.

Resistance to difficult environments

  • shock and vibration: solid cages
  • high levels of vibration: EF800 range
  • pollution: Sealed series

ULTAGE® spherical roller bearings demonstrate their performance on a daily basis in the most demanding of applications.

www.ntn-snr.com

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