A measurement assembly for determining a torque applied to a shaft including a disk coupled to a motor such that the motor is to drive rotation of the disk about a central axis. The measurement assembly also includes a first ring and second ring coupled to the disk and the shaft, respectively, and a sensor unit to measure a rotational displacement between the first and second rings about the central axis. The measurement assembly further includes one or more deformable members coupled between the disk and the shaft, each including a pair of ends and a body extending therebetween.
