What lubes the swing motor gear and ring gear ??

This is probably a dumb question but curious as to what greases the gear and ring inside the swing bearing. I know there are 2 grease certs that we keep greased religiously that grease the bearing but I didnt think that grease would completely get to this area. There is always grease coming out of the ring on the outside so Im assuming this is what greases the gear on the inside ?

Thanks for any help.

What lubes the swing motor gear and ring gear ??