Official Answer
Answer
Radius a kasan tsagi yakan zama dole don rage yawan damuwa a cikin shaft, amma yana rage tasiri mai tasiri ga zoben riƙewa. Dole ne a lalatar da nauyin abin da aka yarda da shi idan radius $R$ ya wuce $10%$ na zurfin rami $d$. Ƙarfin da aka gyara shine $P' = P (1 - \ frac {R}{d})$. Idan ana buƙatar babban radius don rayuwar gajiyar shaft, dole ne a yi amfani da zoben 'nauyi mai nauyi' tare da katangar radial mafi girma ko shim mai gefuna mai murabba'i don tabbatar da zoben baya hawa daga cikin tsagi.
