There is a pair of spur gears, Z1=21, Z2=29, M=8, pressure angle =20 degrees, ha*=1, c*=0.25, required to be installed on the two axis of the center distance of 208MM, and the feet are required
1, coefficient of displacement X1=+0.562, X2=+0.5716;2, the diameter of the pitch circle is d1=168 and d2=232;
6 、 Public Law line length W1=88.09, W2=112.657 overlap factor 1.297;8, sliding coefficient equal to 1.085 (wear equal)Service life can be increased!
4, the root garden diameter df1=157.6, df2=212;5, cross card teeth number k1=4, k2=5;
