This is for a Vectra V6 but it's the principal I want to check...

A is the bearing, B is a compressed spring under a protective sheath and C is the slave cylinder. Normally the whole thing looks like it does in the diagram but on mine the spring is not compressed so there's the bearing, the sheath, a few inches of exposed spring then the slave cylinder, because the spring isn't compressed it's going to make the bearing constantly in contact with the clutch plate, I don't know if it's an issue or not