Matoorka (hore iyo gadaal) shaabada saliidda crankshaft

Baaxadda codsiga:

Muruq-mareenka waxa taageera biro, saliidda injiinkana waxa lagu kaydiyaa digsiga saliidda si ay u saliidayn birahan iyo qaybaha kale ee la midka ah.Sida digsiga saliidda uu ugu dhejiyo sanduuqa, waa in uu jiraa "farqi" u dhexeeya kiish taagan iyo shafka wareega ee wareega.