Wannan saitin kayan motsin tsutsa wanda aka yi amfani da shi a cikin jirgin ruwa. Material 34CrNiMo6 don shaft tsutsa, magani mai zafi: carburization 58-62HRC. CuSn12Pb1 Tin Bronze . Kayan tsutsa, wanda kuma aka sani da kayan tsutsotsi, nau'in tsarin kayan aiki ne da ake amfani da su a cikin kwale-kwale. An yi ta ne da tsutsotsin silinda (wanda kuma aka sani da dunƙule) da ƙafar tsutsotsi, wanda kayan aiki ne na cylindrical tare da yankan haƙora a cikin tsari mai ƙarfi. Gilashin tsutsotsin tsutsa yana haɗuwa tare da tsutsa, yana haifar da watsawa mai santsi da natsuwa na wutar lantarki daga ramin shigarwa zuwa mashin fitarwa.
A cikin kwale-kwale, ana amfani da injin tsutsotsin tsutsa don rage gudun mashin ɗin. The worm gear yana rage saurin mashigin shigar, wanda galibi ana haɗa shi da injin, kuma yana canja wurin wutar.
