A cikin akwati na helical gears, helical spur gears su ne ainihin sashi. Anan ga rugujewar waɗannan kayan aikin da rawar da suke takawa a cikin akwatin gear mai ɗaci:

1. Gears na Helical: Gears na Helical gears ne na silindical tare da hakora waɗanda aka yanke a wani kusurwa zuwa ga gear axis. Wannan kusurwa yana haifar da siffar helix tare da bayanan haƙori, don haka sunan "helical." Gears na Helical suna watsa motsi da iko tsakanin layi ɗaya ko tsaka-tsakin ramummuka tare da santsi da ci gaba da haɗawar haƙora. Matsakaicin kusurwar helix yana ba da damar haɗin haƙori a hankali, yana haifar da ƙarancin hayaniya da rawar jiki idan aka kwatanta da madaidaicin yankan spur gears.
2. Spur Gears: Spur gears sune nau'in gears mafi sauƙi, tare da hakora waɗanda suke madaidaiciya kuma daidai da axis gear. Suna watsa motsi da iko tsakanin raƙuman layi ɗaya kuma an san su don sauƙi da tasiri wajen canja wurin motsi na juyawa. Duk da haka, za su iya samar da ƙarin hayaniya da girgiza idan aka kwatanta da gear helical saboda kwatsam hakora.