RV Gearbox: https://www.youtube.com/watch?v=IKkw4d7jyu0

The thing that's in winches is called a Wolfrom drive: https://mevirtuoso.com/wolfrom-3k-planetary-drive/  ... or, well, it's really close to that 

Guy on reddit calls them "split ring plantery gearbox" : https://www.reddit.com/r/robotics/comments/11pbxha/split_ring_planetary_gearbox_2nd_iteration/

https://www.youtube.com/watch?v=Z0rGd7UO2Tk