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Redex offers its patented DualDRIVE and TwinDRIVE preloading technologies that give CNC machine designers several ways to build a zero-backlash system.

"These approaches leverage Redex modular SRP, DRP, KRP and KRPX Series rack and pinion reducers whose output pinions are preloaded against the rack to eliminate backlash-a longstanding challenge with designs that require long axis travels and require positioning over the entire length of travel to less than 0.001 inch," said a company spokesperson.

Here is how DualDRIVE and TwinDRIVE preloading technologies work to create a zero-backlash system:

• Redex Patented DualDRIVE: These systems achieve a mechanical preload by torsionally winding one pinion against the other when both pinions are in contact with the same rack. DualDRIVE needs just one motor, and no special controllers are required.
• TwinDRIVE: Twin Drive technology electrically brakes one pinion against the other driving pinion when both pinions are in contact with the same rack. These systems incorporate two motors and gearboxes for use with CNC control.

"Redex SRP, DRP, KRP and KRPX Series rack and pinion reducers, together with DualDRIVE or TwinDRIVE technology, let machine designers create zero-backlash preloaded systems that achieve precise positioning and improved stiffness in CNC applications. These reducers feature optimized radial and torsional stiffness, high linear accuracy, compact sizes and precision geometry for meshing with the rack," said the spokesperson.

They can be implemented in the following ways:

• DualDRIVE:
  • Two Right Angle SRP planetary reducers (SRP DualDRIVE Kit)
  • Two Right Angle KRP planetary reducers (KRP DualDRIVE Kit)
  • One Right Angle DRP, including two planetary reducers in one housing (DualDRIVE)
• TwinDRIVE:
  • Two SRP planetary reducers (SRP TwinDRIVE Kit)
  • Two KRP planetary reducers (KRP TwinDRIVE Kit)
  • One DRP, including two planetary reducers in one housing (TwinDRIVE).

For more information contact:

Redex

1705 Valley Road

Ocean Township, NJ 07712

800-713-6170

info-usa@redex-group.com