With rotational capacity requirements of modern applications higher than ever, it's challenging to find a retaining ring that can withstand high speeds. Work-around solutions end up needing more assembly time, cost more money, or even worse, they fail! Over six decades ago, Spirolox®, a division of Smalley, invented the first Self-Locking Ring. A Self-Locking Ring is a custom retaining ring engineered to operate in high RPM applications. Since then, Smalley has been paving the way for innovative high RPM retaining ring solutions.