25T 28T RC Servo Arm Double Head Round Steering Gear Set

Key Features

• 25T Gear Spline — The horn gear spline is 25T, so you can match it to a servo output with that tooth count.
• Multiple Arm Lengths — The set includes 24.3*6mm, 21.4*6mm, 26*5.2mm, 38.6*6mm and 45*6mm arms, giving several reach options.
• Plastic Construction — The arms are made of plastic, which keeps the set light for radio-controlled builds.
• Metric Screw Kit — Mixed M2.5*14 and M3*5 screws are listed with the arms.
• No Battery Needed — The set has no battery, so it works as a mechanical accessory.

Product Specifications

• Material: Plastic
• Plastic Type: PC
• Horn Gear Spline: 25T, 28T
• Screws: M2.5*14 Screw & M3*5 Screw
• For Vehicle Type: Cars
• Power: No battery
• Age Range: 14+y

What It Is / How It Works

This servo arm set is a bundle of double-head round steering gear horns made of plastic, sold under the DSPOWER brand. Servo horns in general connect a radio-controlled model's servo output to its steering linkage, which is the usual role for this kind of accessory.

Who It's For / Use Cases

Radio-controlled hobbyists who build or repair RC cars, drones and planes often keep spare servo horns on hand. Modelers who work with several servo types tend to value a kit that offers more than one arm length and a mix of screw sizes.

How to Use / Care

1. Use these servo arms as steering gear accessories for RC car, drone or plane projects, as the product title describes.

How to Choose

Start with the horn gear spline. This set lists 25T and 28T, so choose the arm whose tooth count matches the output horn on your servo.

Choose arm length by the distance from the servo output to the linkage point on your model. The listing runs from 10.6*3mm up to 56*8mm, so measure your linkage before picking a size.

Plastic servo arms are a common choice for lightweight radio-controlled builds, so the material suits most hobby projects.

Frequently Asked Questions

Which horn gear spline counts are in this set?
The horn gear spline is listed at 25T and 28T. Check the tooth count on your servo output before you choose an arm.

Does the set need batteries?
No. The set has no battery power, and batteries are not included, so it is a purely mechanical accessory.

What screws are listed with the set?
The listing shows M2.5*14 screws (4 pcs), M3*5 (1 pc), M2*8 (2 pcs), M2*5 (1 pc), M2*7.6 (2 pcs), M1.7*4 (1 pc) and M1.7*4.5 (1 pc).

What arm sizes are listed?
The arm sizes include 30*8mm, 21*5.8mm, 31*5.8mm, 56*8mm, 24.3*6mm, 21.4*6mm, 26*5.2mm, 38.6*6mm, 45*6mm, 19.7*4.2mm, 32*4.2mm, 34.5*4.2mm, 17.5*4mm, 28.8*4mm, 16*3.3mm, 17*3.3mm, 10.6*3mm and 27*3.3mm.

What certification and age range are listed?
The set carries CE certification, and the listed age range is 14 years and up.