Mayatech Futaba 25T Gold Standard Servo CNC Metal Steering Arm

Precision-machined from solid aluminium alloy with a protective anodised gold finish, the Mayatech 25T CNC Metal Servo Arm provides a rigid, slop-free linkage for standard and high-torque servos. Designed to replace flex-prone plastic horns, this arm ensures precise control surface deflection and zero backlash, making it ideal for fixed-wing FPV aircraft, camera pan-tilt mechanisms, and agricultural payload release droppers.

Key features

• 25-tooth Futaba spline: Precision-cut teeth match standard 25T output shafts across Futaba, Savox, Power HD, KST, and MG99x-series servos.
• Rigid CNC aluminium construction: Eliminates linkage flex under high aerodynamic or mechanical loads, preventing spline stripping during hard actuations.
• Side-clamping lock: Features a split-head design with a side-pinch clamping bolt that locks the arm tightly onto the servo gear shaft to prevent slippage under vibration.
• Multi-point linkage mounting: Pre-drilled outer holes accommodate standard M2 and M3 pushrod hardware, ball links, and clevis pins for adjustable mechanical throw.

Specifications

• Spline Tooth Count: 25T (Futaba Standard)
• Material: CNC-machined aluminium alloy
• Finish / Colour: Anodised gold
• Size: 35 x 5.9 mm
• Weight: 4 g
• Supported Servos: Futaba, Savox, EMAX, Power HD, KST, MG995, MG996R (Standard 25T output shafts)

When installing on high-vibration drone platforms or heavy-duty fixed-wing control linkages, always center your servo using a servo tester prior to mounting the horn, and apply a drop of medium-strength blue threadlock to the side clamping bolt.