Can’t find the right terminology to search for this.
It’s for a machine at work. A linear actuator moves a gripper back and forth loading parts. If the machine’s power is cut at the wrong time in the cycle, the grippers drop and when the power comes back on as everything goes to its home position, sometimes the grippers impact other components, and their shaft gets bent.
I’m thinking there has to be some sort of coupler, that goes on a shaft, and if that shaft impacts something, it separates before the shaft gets bent. Then to get operational you just re-attach the coupler and proceed. But I can’t seem to hit upon the correct terminology to search for this someplace like McMaster-Carr.