Lever

This part is a double-pivot oscillating control arm, designed to gear or transmit linear or rotary mechanical motion. It is characterized by:
A profiled, elongated geometry, with a reinforced central section that tapers towards the ends to optimize the ratio of weight to resistance to bending.
A central pivot bore, located in an enlarged area of the arm, serving as a fulcrum for rotation of the part on its axis.
A cylindrical terminal bore, positioned at one end, enabling a connecting rod, cable or actuator to be connected via a pivot link.
A flat, unobstructed opposite end, acting as a pressure or interface zone for the transmission of mechanical force.
Its main use is as a transmission pendulum or control lever. It can be used to modify the direction of a force or increase the torque applied to a mechanism. It is commonly found in gear selection systems, remote braking mechanisms, or as a return arm in drone flight controls and the complex articulations of humanoid robots.