1. What Is a Retaining Ring? A retaining ring (circlip) is a small fastening component used to prevent parts from sliding axially along a shaft.It ’s commonly seen in motors, gears, and bearings — essential for keeping machines running smoothly. However, depending on the region or industry, retaining rings follow different design and dimension standards.Globally, the three most recognized systems are JIS (Japan), DIN (Germany), and ANSI (United States). Let’s explore the key