One-way bearing shaft

For T-REX 550E/600E/600E PRO/600EFL PRO/600N:
Use with 180T M0.6 Autorotation Tail Drive Gear(H60020A). Must be used with Torque Tube Front Drive Gear Set (H60121) or (H60147) or (H60122).

For T-REX 600E/600N/550E:
Use with 131T M0.8 Autorotation Tail Drive Gear(H60198). Must be used with Torque Tube Front Drive Gear Set (H60228) or (H60229).