Adafruit
Machined Red Aluminium Servo Arm - 1.75in Long
· MPN: ADA6480
This machined aluminium servo arm is a tougher, longer-lasting upgrade from the standard plastic servo horns commonly supplied with hobby servos. The red ano...
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This machined aluminium servo arm is a tougher, longer-lasting upgrade from the standard plastic servo horns commonly supplied with hobby servos. The red anodised finish looks neat in robotics, animatronics and mechanical builds while adding strength where plastic horns can flex or wear.
The arm is easy to install and provides multiple tapped mounting points for linkages or hardware. It includes three 2.5mm tapped screw holes along the arm plus an M3-compatible 3mm screw hole at the end.
The centre spline is designed for 25-tooth servo axles. Adafruit notes compatibility with their standard-size Feetech FS5103R continuous rotation servo, TowerPro SG-5010 standard servo, and standard-size high torque metal gear servo. It is not suitable for the Parallax Feedback 360 Degree High Speed Continuous Rotation Servo, or for micro and sub-micro servos.
Specifications:
- Servo arm length: ~57mm
- Arm thickness: 4mm aluminium
- Tapped screw holes: three tapped 2.5mm screw holes
- End screw hole: 3mm screw hole on the end (M3 compatible)
- Hole distance from centre rotational point: 32mm
- Hole distance from centre rotational point: 38mm
- Hole distance from centre rotational point: 45mm
- Centre compatibility: mates with 25-tooth servo axles
- Product Weight: 5.0g / 0.2oz
A handy hardware upgrade for servo-driven linkages, pan/tilt mechanisms, robots and other maker projects using compatible standard-size servos.
Jargon buster
Plain-language definitions for the technical terms used above.
- servo
- A servo is a motor with built-in position control, usually told to move to a specific angle by a control signal. It matters when you need repeatable movement, such as steering, arms, flaps, or linkages, rather than continuous spinning.
- Torque
- A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
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