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Roller Guides - RA Series

With a complete line-up featuring high-load capacity and high rigidity, the RA Series meets the needs of a wide range of applications.

Representing the culmination of NSK’s analysis technology and tribology research, this is the most advanced Roller Guide.


Product Features

  • Specifically designed retaining pieces reducing vibrations generated by roller passage substantially.
  • Full product line, from small and large options to low Profile units.
  • Dimensions based on global standards allowing replacement without altering equipment design.
  • Super high load capacity
  • Super high rigidity
  • High accuracy
  • High dust resistance
  • K1 lubrication unit for maintenance free operation


  • Long operating life
  • Maintenance free
  • Optimum size of the roller used as a rolling element ensures high rigidity and supports more compact machinery
  • Vibrations generated by roller passage are substantially reduced
  • Highest stiffness values


Roller Guide RA Series

Capable of handling a variety of applications, the RA series supports high machine performance