Rollers do not last forever and degrade over time,don't let this happen to you! An easy solution to this problem is to have an extra 804189-KIT 50mm recorder roller w/ door kit on hand. This roller comes with a shaft and recorder door for easy replacement, just pop it in and you’re ready to go.
 The 50mm roller door kit is fully compatible with the default recorder found in a plethora of Physio-Control defibrillators/monitors.