Dual Cable Rotary Steering Helm. Optional 90 degree mounting with X34 mounting bezel or 20 degree mounting with X35 mounting bezel. For use with (2) Uflex M66 series cables. Planetary Gear Design has three satellite gears that rot. Ate on their axis and at the same time rotate around the central helm axis, allowing equal distribution of engine torque over three points of the central gear, dividing and balancing the system loads.