If w is less than both 0~; and wi, as depicted in Fig. 6(a),
then the horsepower capacity that corresponds to point A
must be defined by link plate fatigue ]i.e. eqn (I)] with n, as
the number of teeth on the small sprocket. Although the
combination (HP,, o) can also be obtained using eqn (2)
with a teeth number of nZ (dotted line), it does not give the