New Main Gear Case Set - Black : HN6064BAT

New design of one-way bearing for preventing locking.

Use for T-REX 550E/600E/600N.

Must use with:
Autorotation Tail Drive Gear set (H60020AAT).

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)