What is the short axis of a carabiner measured from the gate to the spine called?

The short axis of a carabiner, which is measured from the gate to the spine, is referred to as the minor axis. This designation is significant in the context of strength and loading. In climbing and rescue applications, understanding the different axes of a carabiner is crucial, as they affect how the carabiner can handle loads.

The minor axis is typically oriented perpendicular to the major axis. Since the major axis runs from the spine through the center of the carabiner and is aligned with its strongest points, it is the avenue through which the carabiner can sustain maximum load. However, the minor axis is generally not capable of bearing loads in the same way due to its orientation. This understanding allows rescue technicians and climbers to make safer choices in rigging and equipment selection, ensuring they utilize equipment according to its intended design and limits.

Notably, the terminology surrounding axes is established in climbing and safety guidelines, which help ensure that rescue operations are conducted with the highest level of safety and efficacy.