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Not exactly I'm afraid. The only problem is that the plates which sit against the bearings that you're trying the press in can swivel around on the rod. There's nothing keeping them parallel to one another so you can still press them in at an angle. You'd need blocks on the rod rather than plates so that their thickness stops them being able to to move in any direction other than up and down the rod.
The one I've got is about 10mm thick and 25cm long with a load of bolts and 2 square plates
Do you know what it is (dimensions). I just thought of the hardware store around the corner, they might have something useful.