The cheapest energy is the energy you don’t use
"Approximately one third of motors are equipped with friction belt drives. The performance and efficiency of many belt drives can be improved through...
Compact linear servo actuators with 10 planet wheels integrated in a brushless servo motor for forces up to 51 kN continuous and 102 kN peak. Available with various types encoders and resolvers. Suitable for any type servo inverter. Very high life time, up to 15 times greater than comparable size ball screws.