3 7 8 x 4 5 16 July 8, 2019 16 32 64 128 3 5 16 x 4 7 8 3 4 x 1 5 8 x 7 16 bearing 3 5 16th x 4 7 8 semi rigids 8 3 4 x 7 3 4 x 11 5 16 5 x 7 = 35