Sanduuqa gear-ka meeraha, shafka gear-ka ee spur gear waxa loola jeedaa shafka kaas oo hal ama in ka badan lagu rakibay qalabka spur.
Usheeda dhexe ee taageerta qalabka spur, kaas oo noqon kara qalabka qorraxda ama mid ka mid ah qalabka meeraha.Shafka marshada spur waxay u ogolaataa qalabka ay u kala horreeyaan inuu wareego, isaga oo u gudbinaya dhaqaaqa geerka kale ee nidaamka.
Qalab:34CRNIMO6
Daawaynta kulaylka: Gaas nitriding 650-750HV, 0.2-0.25mm ka dib marka la shiido
Xaqiijinta: DIN6