People always ask these questions the motor is the same 14 poll motor as 5208 with housing that does not fit standard motor cages. Perfect for DIY use .
Yes, but also you will easily get play over time and degraded performance if additional bearings are not used to support the Roll and Yaw axis. For Pitch it is enough to have a bearing at opposite of the motor. This is just something to be aware and check the motors if the performance starts to degrade.
Also to consider, especially for aerial gimbals, how solid is the motor, what happens if it comes apart. It would be good to make sure that any single component failing will not drop the camera from the sky....