ORIGINAL: Geoff123
Hello all,
I have just direct coupled the prop shaft to my motor which is a seaking 400 Size 3900kv Brushless motor.
Does anyone know if such motor can withstand the thrust from the prop, or should I install some kind of thrust bearing to protct the motor.
Thanks Geoff.
Geoff, the motor bearing isn't a thrust bearing (not designed for fore and aft pressure) and will prematurely wear out if you rely on it for thrust pressure. But on a prop drive you usually have a strut or stuffing tube/drive dog that will take up that force. Do you have a pic of the underside?