Can anyone advise me how to stop the screw head (of the screw on the inside of the idler pulley wheel that prevents the bearing from moving) from fouling the screw head (of the screw that holds the front main frame to the side frame). If I remove it will the bearing move out ? Is there any other way of stopping the bearing from moving?. This is a basic CTc Reprap Prusa DIY i3 printer.