Use Of Nuts For Locking

Posted by elain martell on March 21st, 2020

Many old machinery types have two bolt nuts.In such applications, a thin nut is also used. The thin nut can often be seen under the normal thickness nut, and it is above on certain facilities.Although it will seem counterintuitive, the thin nut should be adjacent to the joint and not last.

Two regular thickness nuts are commonly used in other applications, for example on column attachments. The use of two basic nuts is based on the study of historical machinery for at least 150 years.Strengthening one nut and tightening another nut on top of it has a slight locking effect.If locking is to be achieved, a specific procedure must be followed.Philidas nuts are suitable for both high and low temperatures.

When nuts of medium thickness and large thickness are used, the thick nut might be expected to go beside the joint, as it will take the whole load.By putting the thin nut on first, however, the load on the thin nut is lowered when it is tightened to the top of it.First put the thin nut on the bolt. Usually, this nut is strained to between 25% and 50% of the total tightening torque.

There are also explanations for two nuts to be used, other than self-loosening.In particular, two nuts may be used if the threads are galvanized to reduce the chance of stripping. There can be a valid reason that two nuts are used to ensure that the maximum strength of the bolt is produced instead of a premature thread removal failure.

When a significant extension of fastening occurs, i.e. if you use the long bolt, you cannot use the thin nut on the ground.The bolt extension will, under these circumstances, maintain a thin nut stripe by increasing the thread clearance of the thin nut beyond the thread clearance.

Thus, it is not necessary in any situation to position the thin nut next to the joint.Stricting the thin nut on top of a thick nut does not operate as the thread between two nuts involves limited bolt extension.