Lock washers, bolts, lock tite. Learn New everyday

[skidoo_j]

During a disagreement with my father on how split washers prevent the bolt from coming un-bolted I decided to do a little research. Needless to say my father and I were both right, the split ring applies pressure to the bolt to increase friction (my theory) but the split is also to dig into the surface of the bolt and the item(his theory). Our argument was over if a regular washer should be used with a split ring.

 

 

well my research actually shows that regardless split ring washers actually make bolts come undone faster if they receive non-axial motion. watch the videos in the links. made me realize that all the bolts i've broken are because people previous never did the "check all chassis bolts" in the maintenance schd.

 

 

http://www.boltscience.com/pages/junkertestvideo.htm

http://www.nord-lock.com/default.asp?url=51.16.37

 

http://www.boltscience.com/pages/Why_nu ... loosen.pdf