Which type of ring is specifically known for its ability to snap into grooves?

The type of ring that is specifically known for its ability to snap into grooves is the snap ring. Snap rings are designed to fit into a circumferential groove on a shaft or within a bore, providing a secure retention mechanism. Once in place, they effectively prevent components from sliding off the ends of shafts or moving out of position within a housing.

The distinctive feature of snap rings is their design, which usually includes a gap that allows them to be compressed during installation, enabling them to snap into position easily. This snap-fit design ensures a tight and reliable hold, making them a popular choice in a variety of mechanical applications where components need to be securely fastened.

In contrast, retaining rings also serve a similar purpose of securing components but may not necessarily have the same snap-in feature and can differ in their application and installation methods. Lock rings are primarily used to secure locking mechanisms and are not as flexible as snap rings when it comes to installation. Compression rings are designed to seal spaces and do not function in the same capacity as snap rings in terms of fitting into grooves.