●Suitable for TB40. ●The structure is easy to disassemble and maintain, and the high-strength and lightweight main gear only needs to loosen one screw to remove it. | ●TB40 Slant Thread Main Drive Gear/62T x 2 ●Shaft Sleeve x 2(Φ8xΦ9.8x18.5mm) ●M2.5 Nut x 2 |