Answer
Lokacin da igiyar igiyar ruwa ta matsa axially, tsayinsa yana raguwa, yana haifar da faɗuwar waya a waje. Wannan ci gaban radial dole ne a ƙididdige shi sosai don hana bazara daga ɗaure cikin gida ko tsangwama tare da ramin ciki.
Ƙididdigar Ƙirar Ƙarfafawa:
$$D_{max} = \sqrt{D_m^2 + \hagu( \frac{1.45 \cdot h \cdot N_w^2}{\pi} \dama)^2} + \frac{b}{2}$$
Inda $h$ shine girman igiyar igiyar ruwa ($mm$), $N_w$ shine adadin igiyar ruwa, kuma $b$ shine fadin bangon radial.
Ka'idojin Gudanar da Injiniya:
1. Tsare-tsare / Tsabtace Gidaje: Koyaushe tsara mahalli a cikin diamita ($D_{gidan}$) mafi girma fiye da ƙididdiga mafi girman faɗin faɗin diamita na bazara tare da gefen aminci na aƙalla $0.15\rubu{mm}$:
$$D_{gidan} \ge D_{max} + 0.15\rubutu{mm}$$
2. Cire Shaft: Don aikace-aikacen da aka ɗora shaft, tabbatar da diamita na ciki na maɓuɓɓugar ruwan raƙuman ruwa a tsayi mai tsayi ba ya takurawa ko kullewa a kan ramin. Kiyaye ƙarancin izinin ciki na $0.1\rubutu{mm}$ zuwa $0.25\rubutu{mm}$ a matsakaicin juzu'in axial.
