Ƙwallon ƙwallon ƙafa na kusurwa suna da hanyoyi na tsere a cikin ciki da na waje da aka yi hijira tare da juna a cikin jagorancin axis, wanda ke nufin cewa an tsara su don ɗaukar nauyin haɗuwa, watau lokaci guda suna tallafawa nauyin radial da axial. The axial load. Ɗaukar ƙarfin bugun ƙwallon ƙafa na kusurwa yana ƙaruwa tare da haɓaka kusurwar lamba. An bayyana kusurwar lamba α a matsayin kusurwar tsakanin layin da ke haɗuwa da wuraren hulɗar ƙwallon ƙafa da kuma hanyoyin tsere a cikin jirgin sama na radial, tare da nauyin nauyin da aka watsa daga wannan tseren zuwa wani, da kuma layi mai tsayi da tsayin daka.Retainers. an yi su da tagulla, guduro na roba na wasu waɗanda ke ƙarƙashin fasalulluka da yanayin aikace-aikacen.

Nau'u:

1.Single jere

2. Jerin Amfani Mai Girma

3.Double jere jerin