76.DIN6885 flat keys are keys that rely on the two sides as the working surface, transmitting torque through the compression of the key and the keyway side. The 76.DIN6885 flat keys are available in three types: standard 76.DIN6885 flat keys, thin 76.DIN6885 flat keys, and guide 76.DIN6885 flat keys. The standard 76.DIN6885 flat keys offer good neutrality, high positioning accuracy, and easy assembly, but cannot fix parts axially on the shaft, suitable for shafts operating at high speeds or subject to impact and variable loads; the thin 76.DIN6885 flat keys are used in thin-walled structures and for transmitting less torque; the guide 76.DIN6885 flat keys are fixed on the shaft with screws, suitable for cases where the shaft components move little along the shaft; guide keys also include sliding keys, which are mounted on the hub, allowing the shaft components to move axially with the key, suitable for cases where the shaft components move significantly along the shaft.