Also known as poodle rings, these thick rings have "ears" that form a large retaining surface to withstand stronger forces than other side-mount retaining rings.

Also known as bowed E-style rings, these have a curved design that works like a spring, taking up play for a tight hold.

Slide these rings into a groove near the end of the shaft and the tab locks them in place.

Also known as E-Style and C-style rings, slide these into the groove from the side of the shaft. They provide a wider shoulder than other external retaining rings for a larger retaining surface.