Gear shaft forgings bisa ga siffar axis, da shaft za a iya raba crankshaft da madaidaiciya shaft biyu Categories. Dangane da ƙarfin ɗaukar shaft ɗin, ana iya ƙara rarraba shi zuwa:
(1) Juyin juyayi, lokacin aiki, yana ɗaukar lokacin lanƙwasawa da juzu'i. Shi ne mafi yawan shaft a cikin injuna, irin su shaft a cikin masu ragewa daban-daban.
(2) mandrel, wanda aka yi amfani da shi don tallafawa sassa masu jujjuya kawai suna ɗaukar lokacin lanƙwasawa kuma kada ku canja wurin jujjuyawar, wasu jujjuyawar mandrel, kamar shatin abin hawa na jirgin ƙasa, wasu mandrel ba ya jujjuya, kamar goyan bayan shaft, da sauransu.
(3) tuƙi, galibi ana amfani da su don canja wurin juzu'i ba tare da lankwasawa ba, kamar dogayen igiyar gani na injin hannu na crane, tukin mota, da sauransu.