Gearhead efficiency at blocking

Topic:

• What's the efficiency of a gearhead in case of blocking?

Solution:

In case of a blocking gearhead, the total motor torque M_mot multiplied with the reduction ratio i is effective at the gearhead output (torque M_L). Basically, static leverage equations apply to the situation. There is no friction and hence, the efficiency η seems to be 100%.

M_L = M_mot * i * η = M_mot * i * 1