Official Answer
Answer
Saffisni maxxanuu saffisa naanneffannaa humni seentirifuugii gingilchaan qabannaa alaa akka babal’atee fi qabannaa isaa jala qoochoo irratti akka dhabu taasisudha. Yoo ringiin sun tuttuqaa dhabe, raafamuu, uffannaa fiduu ykn illee shaafta irraa balali’uu danda’a. Foormulaan saffisa guddaa hayyamame $N$ $N = _x000c_rac{70.4}{D_m} imes ext{sqrt}_x000c_rac{E imes I imes ext{humna ciccituu}}{w imes R^3}$ yoo ta'u $w$ ulfaatina gilgaala inchii tokkoof. Hojiiwwan saffisa guddaa qabaniif (fkn, tarboochaarjaroota), 'Self-Locking' rings dizaayinii goona. Isaan kunniin tab xiqqaa kan garagalcha itti aanu irratti gara notch tti cufamu qabu, kunis saffisa 50,000 RPM ol ta'een illee ring'n akka raadiyaalatti akka hin babal'anne taasisa.
