The rudder tray mounting hole sizes match with standard servo.
Both the rudder tray and servo arm are machined by CNC, with high accuracy.
Anodic oxidation treatment on surface, artistic while anti-corrosion
2 bearings in the arm support, together with high accuracy wear-resisting copper axle, guarantee perfect rotation.
Stainless steel hexagonal pushrod with US standard positive & reverse threads
Hexagonal ball head cooperates better with the help of flat gasket, and more reliable.
All nuts are locknuts, can avoid loose connection caused by vibration.
The M3 internal threads make it easier to fix ball head, linkage stopper, or directly connect the wires which connect the servo.
4 alternative sizes of double arm: 3.5in, 4in, 4.5in, 5.0in (longer the arm, more flexible the servo is, but stricter requirements on the torque force on servo)
