RV-C Series Nabtesco

Hollow Shaft Structure

  • Cables and other lines can pass through the reduction gear
  • Allows space saving design

Integrated Angular Ball Bearings

  • Increases reliabilty
  • Reduces overall cost
  • Built-in angular ball bearing construction improves ability to support external loads, increases moment rigidity and maximum allowable moment.
  • Reduces the number of components required.
  • Simplifies installation and maintenance.

2 Stage Reduction

  • Reduces vibration
  • Reduces inertia(GD2)
  • Low speed rotation of the RV gear reduces vibration.
  • Reduced size of the motor coupling part (input gear) lowers intertia.

All Main Elements are supported from both sides

  • Higher torsional stiffness
  • Less vibration
  • High shock load capability (5 times rated torque)
  • Crankshafts are supported on both sides of the reduction gear as shown below.

Rolling Contact Elements

  • Excellent starting efficiency
  • Low wear and longer life
  • Low backlash (Less than 1 arc. min.)
  • Use of roller bearings throughout.

Pin & Gear Structure

  • Very low backlash (Less than 1 arc. min.)
  • Higher shock load capability (5 times rated torque)
  • Synchromeshing of many precision ground gear teeth and pins.