Help with broken part

[drose01]

earlier today I broke this part, and I'm not sure what it's called. It looks like it snaps on to the upper baring rollers. Does anyone know what it's called? I couldn't find it in the manual does it have to be ordered directly from Carvewright? Can the machine still be used without it until I get a new one? Anyone with experience with this part your help would be appreciated. Still new at this but if I did it right I've attached the broken part. Thanks, Don!