3Racing 3RAC-HKS26/BU CNC-Style 2.6mm Aluminium Servo Arm  [3RAC-HKS26/BU]

3RACING 2.6mm Aluminium Single Servo Arm For Ko Propo/Sanwa - Blue - 3RAC-HKS26/BU
Price:
USD$3.50
Brand:
3Racing
Model:
3RAC-HKS26/BU
Condition:
Brand New
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Technical Overview of 3Racing 3RAC-HKS26/BU

The 3Racing 2.6mm Aluminium Single Servo Arm for KO Propo and Sanwa is produced to tight tolerances to serve as a reliable metal upgrade. Its anodized aluminium body enhances stiffness at the servo output, improving feedback fidelity during precise steering inputs.

Engineering Benefits for Competitive Setups

Replacing a compliant plastic horn with this aluminium arm reduces torsional deflection and helps maintain consistent linkage geometry under load. The result is improved steering linearity and repeatable turn-in characteristics valuable in racing and time attack applications.

Installation Notes for Tuners

Ensure correct spline alignment and use recommended torque values when securing the arm to avoid introducing backlash. For high-load applications pair the arm with a servo that has appropriate output gear material and shaft hardness to maintain system durability.

What tolerances should I expect on spline fit?

The arm is manufactured for a snug fit to common KO Propo and Sanwa splines; minimal clearance is intentional to reduce play. Verify fit during dry assembly before final torque.

Is aluminium preferred for competition steering arms?

Aluminium offers predictable stiffness and wear resistance making it a common choice for competitive rigs, provided the servo output and mounting hardware are matched for durability.

Any recommended maintenance for longevity?

Periodically inspect the arm for burrs or damage after impacts, and confirm mounting bolts remain torqued; replace if deformation is detected to protect the servo output shaft.