ist c . com / eng lish / index . asp ▁- ▁Council ▁of ▁China ▁Association ▁for ▁International ▁Science ▁and ▁Technology ▁Co operation ▁ ▁Category : M embers ▁of ▁the ▁International ▁Council ▁for ▁Science ▁Category : Engine ering ▁soci eties ▁based ▁in ▁China <0x0A> </s> ▁A ▁tor que ▁lim iter ▁is ▁an ▁automatic ▁device ▁that ▁protect s ▁mechanical ▁equipment , ▁or ▁its ▁work , ▁from ▁damage ▁by ▁mechanical ▁over load . ▁A ▁tor que ▁lim iter ▁may ▁limit ▁the ▁tor que ▁by ▁sli pping ▁( as ▁in ▁a ▁fr iction ▁plate ▁s lip - cl utch ), ▁or ▁un cou ple ▁the ▁load ▁entirely ▁( as ▁in ▁a ▁she ar ▁pin ). ▁The ▁action ▁of ▁a ▁tor que ▁lim iter ▁is ▁especially ▁useful ▁to ▁limit ▁any ▁damage ▁due ▁to ▁crash ▁stops ▁and ▁j ams . ▁ ▁Tor que ▁limit ers ▁may ▁be ▁pack aged ▁as ▁a ▁sh aft ▁coupling ▁or ▁as ▁a ▁hub ▁for ▁s pro cket ▁or ▁she ave . ▁A ▁tor que ▁limit ing ▁device ▁is ▁also ▁known ▁as ▁an ▁over load ▁cl utch . ▁ ▁Dis connect ▁types ▁Dis connect ▁types ▁will ▁un cou ple ▁the ▁drive , ▁with ▁little ▁or ▁no ▁resid ual ▁tor que ▁making ▁its ▁way ▁to ▁the ▁load . ▁They ▁may ▁reset ▁automatically ▁or ▁manually ▁ ▁She ar ▁pin ▁ ▁A ▁she ar ▁pin ▁type ▁sacrific es ▁a ▁mechanical ▁component , ▁the ▁pin , ▁to ▁dis connect ▁the ▁sh aft s . ▁ ▁The ▁use ▁of ▁she ar ▁p ins ▁has ▁been ▁well ▁known ▁for ▁since