Super Precision Cylindrical Roller Bearings

Overview

Super Precision Cylindrical Roller Bearings

NSK super precision cylindrical roller bearings are designed specifically to handle large radial loads in high-speed spindle applications that require high running accuracy.

 

Lineup Highlights

  • Standard bearings that conform to ISO standards and specialized series for machine tools.
  • Double-row cylindrical roller bearings with high rigidity and single-row options for high speeds.
  • A range of NSKROBUST™ high-performance bearings for both high rigidity and ultra-high speeds.

Product List

New materials and a new design enhance machine tool performance.

Features

  • High speeds/low heat generation
    An optimized design increases supported speeds and decreases heat generation.
  • Long life
    Grease lubrication extends service life.
  • Stable rotation
    A highly rigid PPS resin cage restricts deformation due to centrifugal force and keeps rotation stable at high speeds.

NSK's standard single-row cylindrical roller bearings conform to ISO standards.

Features

  • Long-life materials
    NSK's Z steel, a long-life bearing steel, is used as a standard material.
  • High rigidity
    High-rigidity types use a roller-guiding machined brass cage.

NSKROBUST bearings feature a highly heat-resistant PEEK cage and heat/wear-resistant SHX steel to achieve a dmN value of 2.2 million.

Features

  • Low heat generation
    An optimized design achieves low heat generation.
  • High seizure resistance
    SHX steel significantly improves seizure resistance.
  • Optimized materials for high speeds
    Heat-resistant, highly rigid PEEK resin material realizes impressive high-speed performance.

FAQs

 

answersEven when they have the same bore/outside diameter dimensions, internal designs and bearing widths differ between single- and double-row bearings, so their catalog limiting speeds and load ratings also differ.
Because of these variations, be sure to take the dimensions surrounding the bearing into consideration as well during selection.

 

answersAPTSURF bearings are designed for precision machinery at large, while NSKROBUST bearings are specialized for ultra-high-speed applications such as machine tools.

 

answersWe recommend filling 15 to 30% of the bearing's free internal space with grease.
If too much grease is used, abnormal heat generation will occur when the machine starts, causing the grease to deteriorate.

Catalogs

Search our full listing of catalogs for more details.

2D/3D CAD Data

Download 2D & 3D CAD model files and spec. sheets for NSK products through PARTcommunity.

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2D/3D CAD Data (PARTcommunity)

Industry Applications