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Chronos 127T Main Gear Upgrade

3D Miniature Engineering

Chronos 127T Main Gear Upgrade


Chronos 127T Main Gear Upgrade:

CNC machined from Delrin the 3DME Chronos main gear upgrade has the following features:

  • Tooth length increased by 2mm.
  • Direct bolt in replacement, no modification required.
  • CNC machined to ensure maximum accuracy.
  • Tooth depth increase to provide maximum drive surface on pressure angle on the tooth.
  • Clearance machined at the base of the tooth to avoid any OD binding on the pinion.

We advise you pair you new main gear with a new pinion to avoid uneven wear from a perilously worn pinion.

 Any questions drop me a line at


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