Main Gear Case Set H50003Instruction:Use for T-REX 500.Specification:One-way bearing HF1012 x 1(Φ10xΦ14x12mm)Main gear case x 1(Φ14xΦ17xΦ40x9mm)Hex socket salf tapping screw x 4(T3x6mm)One-way bearing shaft x 1(Φ7xΦ10xΦ12.6x27.25mm)Washer x 1(Φ10xΦ13x0.8mm)