Yes, there is a zerk fitting. In fact there were two on mine, one at the upper end and one at the lower end. The lower one has been removed and glassed over because of a leak in the past. I was also hoping a bearing or two to be present but the installation is much more simple than that. Check this link referred to in my previous post as "home" it is from a catalina site. home
The drawings on the page are identical to the rudder installation on my boat.