T700 Universal Main Gear Case for ALIGN T-Rex 550/600 Electric Series Helicopters

Product has been archived, and is no longer available for purchase.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



The T700 Universal Main Gear Case for the ALIGN T-Rex 600E Pro series helicopter (also compatible with the T-Rex 550E and 600E/ESP series with components listed below) provides the most universal solution for gearing setups throughout the helicopter series. No more self-tapping screws into plastic, the new upgrade provides a rigid, six-screw bolt pattern for the gear to the Main Gear Case for unreal strength and simplified installation. This upgrade is a MUST HAVE for high-power, high-voltage setups to prevent stripping of the main gear during flight and hard 3D maneuvers.

The T700 Universal Main Gear Case can be used in conjunction with the new KDE Direct T-Rex 550/600/700 Series Slant Main Drive Gear, 112T, MOD1.0 or the KDE Direct T-Rex 550/600/700 Series Main Drive Gear, 115T, MOD1.0 (sold separately) for significantly increased strength advantages, reduced noise/wear, and alternate gearing ratios. In addition, the High-Performance One-Way Drawn Cup Clutch Bearing (HF1216) is also available for a strong, bind-free transmission of the power to the main shaft if replacements are required.

Important: Due to component compatibility with various models and design variances (T-Rex 550/600 series), please review the Design Presentation (PDF) and Installation Diagram (PDF) for full information.


Material: Aluminum 6061-T6

Models: All ALIGN T-Rex 550 and 600 series (replaces stock ALIGN part #H60200 and #HN6064B).


  • One (1) T-Rex 550/600 Series Aluminum T700 Universal Main Gear Case
  • Six (6) M3 x 0.5 x 6 mm Button Head Socket Head Cap Screws (Class 12.9)
  • One (1) High-Performance One-Way Drawn Cup Clutch Bearing, HF1216
  • One (1) Radial Ball Bearing 12 x 18 x 4 mm

Finish: Clear anodize, mirror-polish CNC gloss

Weight: 18 g (design is FEA optimized for maximum strength and minimum weight)


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