There is a tool called a 'torque limiter'.<br>
This tool is essentially a spanner for tightening nuts etc. and to prevent them from being 'over tightened'.<br>
It can be a hand tool, or pnuematically operated.<br>
It has an adjustment on it to set the maximum torque that can be applied.<br>
<br>
Regards Norman
Torque Limiter can be any device that limits the amount of torque on a item. Most common is a torque wrench as stated in the above reply. <br>
In a machine design aspect a torque limiter is just that, a device that limits the maximum amount of torque, usually incase there is a falure. Just like a fuse is in the electrical sense, a torque limiter is a mechanical fuse.
Torque limiters are also commonly found built as a part of a machine coupling/drive element. The device will drive or couple two parts up to a given torque. At that point it will either "slip" and maintain the desired torque level or disengage. Controls are necessary to effectively use these devices since they cannot "slip" continuously with heat build-up/damage or if it disengages someone or some control must be made aware of the change.
