Hi, I am looking into a braking system which can limit the rotational speed of a platform; the assembly consists of a fixed vertical shaft and a rotating outer tube (seated with bearings). The platform diameter is >5 times larger than the tube. I have looked into the typical band brake, friction brake, etc however, there is a problem: The limit on rotational speed is set at 1 RPM, so to generate a relevant braking force centrifugally is unrealistic (considering the mass is over 200kg). The only concern with electronically assisted brakes is the safety factor. My only other option would be rotary dampers but if anyone has any better ideas, that would be great. Cheers!