Hi! I’ve been trying to figure out for the past 2 weeks how to implement a working roller chain into unreal engine.

I’d like it to be linked to the opening of a door. so when the door opens it rotates one way and when it closes it rotates the other way.
This is a very simple animation to make in blender but I can’t figure it out for the life of me how to import in into Unreal.
I can’t find anything online either so I hope there is a hidden saviour on this website!