KTR Engineering Services Manager, Chris Scholz spent a few minutes with Coupling Tips.com to explain idle rotation in torque limiters.
“When a torque limiter of this style disengages, its outer casing shifts back, and will not re-engage until manually reengaged; so it basically becomes a free-running bearing. Then, once the engineer determines what the issue is with the overcoming of the torque, they can stop the machine, and manually push the unity back in place to be engaged to run again.
We typically see these torque limiter configurations in much larger applications, so there’s time to stop a system, and check things out. We see them in shaft-to-shaft applications, large rollers, steel mills etc.”