ULTAGE® Spherical Roller Bearings
NTN-SNR spherical roller bearings meet all applications with high radial loads.
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.
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