Main Drive Gear, 150T, MOD0.5 for ALIGN T-Rex 450 Electric Series Helicopters

Product has been archived, and is no longer available for purchase. This page is for reference only.



The new Main Drive Gear is precision CNC-machined (manufactured by RevCo for KDE Direct) from Nylatron Type 66 Polyamide, an excellent material for polymer gears and the perfect match for an extremely strong, smooth running, and durable power transmission. The gear is composed of 150 teeth, utilizing the metric MOD0.5 tooth profile standard for the stock T-Rex 450 series helicopters. Through months of testing, the gear has been optimized to include numerous design features for optimum performance, including:

  1. The tooth involute profile has been optimized through numerous design iterations for increased tooth engagement and strength, providing an incredibly quiet and durable gear for a MOD0.5 power train.
  2. Weight was reduced through FEA optimizations of the machining pattern to significantly reduce weight, while maintaining full strength of a solid-gear profile.
  3. The self-lubricating properties of the Type 66 Polyamide material provides exceptional wear and noise properties, providing a gear that can withstand the harsh nature of hardcore 3D flight.


Material: Nylatron Type 66 Polyamide

Models: All ALIGN T-Rex 450L and 450 series (replaces stock ALIGN part #HS1219-01).


  • One (1) T-Rex 450 Series Main Drive Gear, 150T, MOD0.5

Finish: Precision CNC-machined, Nylatron Type 66 Polyamide

Weight: 12 g (design is FEA optimized for maximum strength and minimum weight)

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