Paper: Recent Advances In Beam-Type Unit Design

By arranging the geometry of the beam type oilfield pumping unit as a non-symmetrical front-mounted lever system, it is possible, in most cases to fit more closely the counterbalance torque pattern to the well load torque pattern, with significant reductions in peaks. This system results in a relatively uniform loading of both prime mover and gear reducer; the loading in turn allows the operator to handle many applications with smaller equipment and reduced first cost.