Official Answer
Answer
Automated installation typically uses a 'plunger and sleeve' mechanism. The ring is placed in a tapered sleeve that gradually compresses (for internal) or expands (for external) the ring as a plunger pushes it toward the groove. Best practices include: 1) Ensuring the taper angle of the sleeve is shallow (less than $15$ degrees) to prevent over-stressing the ring; 2) Using hardened and polished tool surfaces to minimize friction; 3) Implementing 'ring presence' sensors to detect missed installations; and 4) Designing the groove with a lead-in chamfer to facilitate the ring 'snapping' into place. Proper lubrication of the tool is essential to prevent 'galling' during high-speed cycles.
