Product overview
The Scorpion M-4010 motor shaft kit supplies 4mm hardened steel replacement shafts for M-4010 and MII-4010 series Scorpion multi-copter motors equipped with a C-clip retainer. Intended to replace shafts bent or broken during a landing, the kit supports motor repair. The shafts can also be shortened with a Dremel tool and cut-off wheel when necessary to fit other motors.
The shafts have a slight press fit in the motor’s aluminum front housing, so removing the setscrews alone will not release them. Removal requires a bearing press or drill press, with the front housing supported in a block of wood to prevent warping. The kit weighs 12g including packaging.



