Helical Gears suna kama da na'urorin spur sai dai hakora sun kasance a kusurwa zuwa ga shaft , maimakon a layi daya da shi kamar yadda a cikin kayan spur. Hakora sun haifar da egars masu kama da juna suna bin bambanci da nau'ikan spur gears masu girman iri ɗaya.
Ƙarfin hakori ya fi girma saboda hakora sun fi tsayi
Babban hulɗar ƙasa akan haƙora yana ba da damar kayan aikin helical don ɗaukar kaya fiye da kayan spur
Tsawon tsayin yanayin tuntuɓar yana rage ingancin kayan aikin helical dangane da kayan spur.