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The RollerDrive CNC RC Series is a circular table designed to meet the requirements of machine tool manufacturers for greater speed and accuracy. The RC Series uses Sankyo's zero-backlash reducer, the RollerDrive to deliver output motion unaffected by external disturbances, unlike gearmotors or torque motors.
The high accuracy and rigidity afforded by the zero-backlash technology gives the RC Series its high rotary positioning accuracy 10 seconds maximum, and the ability to hold up to heavy cutting of hard steel.


  • Available in 5 Table Diameters
    Available table diameters: 170, 200, 250, 315, and 400 mm

  • Large Hollow Center
    Available with a large hollow bore in the table center.

  • High Accuracy
    Rotary positioning accuracy 10 seconds maximum, repeatability 4 seconds maximum.

  • No Clamping
    No clamping motion necessary because the mechanism is free of play.


  • Tool sharpening
  • Machining of mirror cylindrical parts
  • Machining of automotive ABS parts


Characteristics UnitsRC170RC200RC250RC315RC400
Table ODmmφ170φ200φ250φ315φ400
Table Bore Diameter mmφ75 H7φ75 H7φ110 H7 φ150 H7φ180 H7
Center Heightmm150165211255300
Gear Ratio1/601/60 1/60 1/60 1/60
Max Table Speed rpm5050505050
Indexing accuracy arcsec±15 ±10 ±10 ±10 ±10
Repeatabilityarcsec8±10 444
Product Weightkg70100170280410