Quoted from Hardsuit:Remember that a lot of servos are used in R/C hobbies where they have to hold a specific position against a constant pressure (airplane rudders/wing flaps) or impactful force(car steering setups). Servos will list both their torque and speed ratings, and I would assume you'd want a higher torque rating (to resist impacts better) while speed would be less of an issue. You will have to find servos that meet your specific needs, but they do exist.
Servos aren't meant to take impacts and will easily strip their plastic gears. The steering in R/C cars utilize servo savers that generally prevent impacts transferring to the servo. Metal geared servos may fair better but still they should not take impacts.
