Iperereza kunanirwa kwimpeta izenguruka bitewe na 'fretting corrosion' muri garebox yihuta cyane.

Kwangirika kwangirika bibaho kuri interineti hagati yimpeta igumana nurukuta rwa groove iyo ikorewe kwimuka rito-rinini (vibration). Iyi micro-moteri isenya icyuma kirinda icyuma kirinda ibyuma, biganisha kumyanda yimyanda (mubisanzwe $ Fe_2O_3 $). Imyanda ikora nk'igisebo, yihutisha kwambara no gukora ibyobo bikora nk'ibitera imbaraga zo gucika intege. Mu isanduku yo mu kirere, ibyo bikunze kugabanywa ukoresheje amavuta yumye (MoS2) kuri MIL-L-46010 cyangwa ukoresheje impeta isize ifeza kugirango utange igitambo cyo gusiga ibitambo. Kugenzura ifu y 'umutuku' cyangwa 'cocoa' ifu kuri interineti ya groove ni ikimenyetso cyerekana guhagarika umutima.