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Precision bearing lines that meet the most stringent needs for high performance.

PRECISION, STIFFNESS, HIGH SPEEDS

From stock removal to high-speed grinding, machine-tool performance is critical in most production processes. When it comes to holding precision tolerances and machining time savings, our line of precision bearings covers the most demanding applications in the market.

Our precision lines are used in a diverse range of industries, some of these applications include high-speed medical equipment and woodworking equipment, as well as heavy-industry and automotive engine plants that require the maintenance of precision tolerances. Even the CNC equipment used in our own bearing plants use NTN bearings to perform a variety of grinding, polishing, and stock-removal processing tasks.

For applications requiring even higher rotating speed, NTN offers angular contact bearings fitted with ceramic balls. These specific properties allow for increased rotating speeds without overheating, while also improving bearing stiffness and extended life.

We use the highest precision processing and measuring technology when we create our high performance products. We also offer a wide range of ball-screw supports, double-direction angular contact and cylindrical roller bearings, and precision SNR locknuts.

Technical features include:

  • Universal or matched bearing sets
  • Very high quality 100 Cr6 steel rings and balls
  • Contact angles of 15°, 17° and 25° (SNR range)
  • Contact angles of 15°, 30°, 40° and 60° (NTN range)


  • Four pre-load levels
  • Sealed-for-life angular contact precisions
  • Laminated resign cage (phenolic) centered on inner ring (SNR standard)
  • Nylon-resign cage (NTN standard)
  • Machined brass cage (NTN standard for cylindrical precision)
  • Precision grades of ISO4 (P4) and ISO2 (P2), and additional grades available upon request
  • Bore ranges from 10mm up to 240mm
  • OD ranges up to 420mm

The combination of the NTN and SNR precision line offering should be used wherever operating conditions call for superior accuracy, longer life, quiet operations, and higher speed.