for ultimate performance
for ultimate performance
NTN high precision bearings

NTN, your trusted partner for the most demanding applications.

Bearings optimized for your machine tools

The range of extra precision bearings has been developed by NTN experts in close collaboration with some of the biggest names in machine tools

NTN Precision Bearings Benefits:

  • Productivity: optimized production cost
  • Accuracy: high-quality machining
  • Reliability: reduced maintenance costs
  • Eco-design: environmental protection

The range features the ULTAGE® label, proof of its ultimate performance.

NTN precision beairngs

Spindle bearings

  • Angular contact ball bearing – high precision, standard or high speed
  • High precision cylindrical roller bearings with 1 or 2 rows of rollers
  • HTA precision thrust ball bearings

Ball screw support bearings

  • BSTU - sealed
  • BST - open/sealed
NTN high precision bearings

Cage technology

Our cages are made from resin polyamide for the best price/performance ratio: they are lighter and quieter as a result of the optimized geometries.

  • T2: cage in innovative and high performance polyamide resin for precision angular contact ball bearings for machine tools. It allows rising temperatures to be lowered to reach higher speeds.
  • T6: PEEK cage, light and sturdy, specially designed for spindle bearings on cylindrical rollers Its design and ability to store grease allows to reduce heat generation and therefore reach higher speeds.
  • T9: latest innovation from NTN to go faster at the lowest cost

And we also offer:

  • T1: cage in phenolic resin for high speed angular contact ball bearings capable of maximum speeds.
Special steels: 2LA - 2A
  • Increased performance: optimisation of the purity of the steel and special heat treatments
  • Longer useful life: essentially under very high temperatures at very high speeds
  • Improved performance: resistance to wear and anti-seizing properties
Internal designs optimized for ultra high speed and top ranges

NTN has developed ultra high speed and top ranges by working on the internal designs and technologies of cages.

  • Radial angular contact ball bearing – super precision, high or ultra high speed
  • Cylindrical roller bearings – high precision and ultra high speed
Each application has an optimum preload
  • 4 levels of standard preload: extra light (GL), light (GN), average (GM), strong (GH)
  • And specially preloaded on request
Hybrid versions with ceramic balls, optionally throughout the entire range

These hybrid versions boost the performance of our bearings and those of your machine tools: speed (+30%), rigidity (+10%), useful life (x3)


Do you have specific requirements?