Man fetur matsin lamba rarraba a kan shaft akwai biyu symmetrical zagaye arc grooves, tsakanin biyu grooves akwai wani sashi na zagaye arc surface (waje zagaye surface na shaft) ba milled, don rufe man fetur matsin lamba, man fetur suction yankin. A lokacin juyawa shaft mai rarraba, biyu grooves juyawa tare da suction a kan famfo jiki, matsa lamba man fetur da haɗin gwiwa, man fetur rarraba ka'idar da aka ambata a kan karshen fuskar man fetur rarraba, bambancin shi ne cewa daya da karshen fuskar (jirgin sama ko spherical) hatimi, daya ne da cylindrical fan zagaye fuskar hatimi, domin daidaita radial karfi a kan gear famfo shaft, man fetur rarraba shaft kuma a bude da daidaitaccen grooves, kuma a cikin hanyar da aka hatimi na hanyar rarraba man fetur.