... 2.21,195.cos11.5o = 98, 06( mm) De = D2 + 2.h2 cos = 38 6.22 + 2.21,195.cos 78.5o = 39 4.67( mm) Kim tra iu kin khong sỏng gm xe: 23 De 30 e 39 4, 67 = 38 5,5 30 = 231 .767( mm) H = rbx + Khe h chõn rng ỏy ... rb r 63 39 = = 109,906(mm); rtd = h = = 35 ,37 1(mm) o cos b cos 61, cos h cos 28,8o tx = 0, 418 40 831 ,37 .21,5.1010 1 + = 2471, 71( MN / m ) o o 0, 032 .sin 20 cos 20 0,10906 0, 035 37 ữ ... 19 Chiu cao rng ỏy ln h mm 21,187 21,187 S mm 7, 037 14,9 43 21 k vũng chõn rng ỏy ln Di mm 35 ,7 38 2 22 k vũng chõn rng ỏy nh di mm 33 ,4 35 9,54 23 Bk vũng chia trung bỡnh rx mm 21,94 150,56 20 Chiu...