Dubro Arm Micro JR Servo Arm - DUB931

The Dubro DUB931 is a micro servo arm designed for JR-compatible servo outputs on RC aircraft. Servo arms at this scale are a common maintenance item — they wear at the spline over time or get damaged during rough landings, and having the right replacement on hand keeps your model airworthy. The DUB931 is a direct-fit option for micro servos using the JR spline pattern, making it a practical stock item for anyone running smaller fixed-wing models or gliders.

Key Features

• Designed for micro servo applications where compact, lightweight linkage geometry is essential
• JR-compatible spline pattern for secure, rattle-free fitting on matching servo output shafts
• Dubro construction provides reliable dimensional consistency for repeatable control surface geometry
• Suitable for use across ailerons, elevator, and rudder linkages on micro and park-flyer scale aircraft

What's Included

• Dubro DUB931 micro servo arm

What You Need

• JR-compatible micro servo to fit the arm to
• Appropriate linkage hardware (clevis, rod, or pushrod) for your control surface setup