Hello I recently bought a Stanley 73 Brace.  However there may be a problem with it. There is a gap between the ball bearing cup and the frame of the brace which ocurs when I pull the head of the brace away from the frame (even slightly). The gap is significant and you can clearly see the balls from the ball bearing inside.  A larger gap and the balls from the bearing would come out. You can see the pictures that I attached. My question is this, is this gap normal or should there be some kind of stopper either bellow the bearing or the head to prevent this from happening?
Thanks in advance,
Nestor