New Main Gear Case Set-Black

●New design of one-way bearing for preventing locking.
●Use for T-REX 550E/600E/600N.
●Must with Autorotation Tail Drive Gear set (H60020A).

●One-way bearing HF1216 x 1(Φ12xΦ18x16mm)
●Main gear case x 1
●Hex socket salf tapping screw x 5(T3x7mm)
●One-way bearing shaft x 1(Φ9xΦ12x34.7mm)
●Washer x 1(Φ11.5xΦ18x0.8mm)