464 / | HD | ROTARY SHAFTS, GUDGEONS, HOUSINGS, AND FLEXIBLE COUPLINGS FOR ROTARY SHAFTS |
51 | DF | TORQUE TRANSMITTED VIA FLEXIBLE ELEMENT {16} |
57 | DF | .~ Element has plural convolutions wound about rotational axis {3} |
59 | .~.~ Single element has plural radially overlapping convolutions |