Official Answer
Answer
Unlike stamped rings with holes for pliers, spiral rings are removed by prying the end out of the groove. A 'removal notch' is a small cutout at one end of the ring that allows a screwdriver or dental pick to get behind the wire. In some high-performance applications, 'scallops' or multiple notches are added to allow for removal in tight spaces where the primary end might be inaccessible. For assemblies that require frequent maintenance (e.g., aerospace gearboxes), the inclusion of a removal notch is a critical 'design for service' feature. Without it, the ring may be impossible to remove without damaging the shaft or the groove, leading to costly component replacements.
