Use for T-REX 600E PRO/600EFL PRO.
Use with H70020,H60198,H60199?

Specifications: One-way bearing HF1216 x 1(Φ12xΦ18x16mm) Main gear case x 1 Hex socket salf tapping screw x 6(T3x6mm) One-way bearing shaft x 1(Φ9xΦ12x34.7mm) Washer x 1(Φ11.5xΦ18x0.8mm)