I actually have a Nutri Ninja Auto-iQ BL481-70 and need the base gear
The inside rubber part of the blender that's connected to the base not the blade (not sure what it's called) came loose and won't screw back on. It appears the treading is worn out. So far, I've only been able to find the rubber gear that you connect to the blade only. Any ideas?
Update (04/24/2018)
Sorry about the photos. I've provided some more that should be clearer.