I will pile on and confirm that the rollers are loose once installed. There is a steel flat metal ring that is pushed into the bore behind the rollers during installation that will be found behind the rollers that are still in the bore. The ring is split and easy enough to retrieve for reuse. I can also confirm that there should be 18 rollers, basically filling the bore. They can be a little tricky to get in place but some grease helps hold them in place until they are all in and the retaining ring can be inserted. Put the retaining ring about mid roller position so that the shaft can enter the roller defined bore. As the shaft is pushed into place the ring is pushed into the pocket behind the rollers for future use.
