EMAX ES09MD Dual-Bearing Swash Servo for 450 Helicopters

Stop stripping cyclic gears on every aggressive pitch pump. The EMAX ES09MD is a dedicated digital mini servo engineered specifically for 450-class RC helicopters, packing metal gears, dual ball bearings, and a genuine NOBLE potentiometer into a compact 14.8g casing. Backed by our 10 years of experience in the manufacturing and delivery of commercial FPV systems and precision RC hardware, we know that slop in your swashplate linkage ruins flight controller stabilisation and tail authority. Whether you are dialling in aggressive 3D collective pitch manoeuvres or fine-tuning flybarless gyro responsiveness, the ES09MD provides repeatable centring, high holding torque, and zero unwanted backlash right out of the box.

Key Highlights

• Dual-Bearing Output Shaft: Large-diameter shaft supported by dual ball bearings eliminates linkage play and ensures smooth cyclic control.
• Reinforced Metal Gear Set: High-hardness gear architecture maximises transmission efficiency and prevents stripped teeth under sudden collective pitch spikes.
• Precision NOBLE Potentiometer: Delivers ultra-tight signal coherence and reliable centring accuracy across thousands of dynamic flight cycles.
• High-Speed Digital Performance: Actuates down to 0.08 sec/60° at 6.0V for lightning-fast gyro correction loops and razor-sharp swashplate response.

Why You Want It

Because stripping nylon gears mid-tick-tock turns your expensive 450 build into lawn dart debris faster than you can flip throttle hold. The EMAX ES09MD is built to endure the brutal cyclic loads of CCPM swashplate setups without developing the dreaded deadband wobble that haunts budget servos. It gives you snappy 2.6 kgf.cm holding torque at 6.0V, paired with the exact pulse timing your flybarless system demands. Yes, we want your money, but we also want you spending your weekends flying inverted rather than rebuilding servo geartrains on your workbench.

Specifications

• Operating Voltage: 4.8V – 6.0V
• STD Direction: Counter-Clockwise / Pulse Travelling 1500 to 1900 µsec
• Stall Torque (4.8V): 2.3 kgf.cm
• Operating Speed (4.8V): 0.10 sec/60° at no load
• Stall Torque (6.0V): 2.6 kgf.cm
• Operating Speed (6.0V): 0.08 sec/60° at no load
• Dimensions: 23.0 × 12.0 × 24.5 mm
• Weight: 14.8g
• Plug Type: FUT / JR
• Gear Type: Metal
• Servo Type: Digital

FAQ

Can I use the EMAX ES09MD as a direct drop-in replacement on cyclic swashplate linkages for 450-class helicopters?

Yes. The ES09MD features standard micro/mini servo dimensions (23.0 × 12.0 × 24.5 mm) and high-speed digital pulse travelling (1500–1900 µsec) configured for standard cyclic mounts and modern flybarless gyros on 450-sized airframes.

What’s in the Box*

• 1× EMAX ES09MD Digital Servo
• 1× Hardware Mounting Pack (Screws and Bushings)
• 4× Assorted Composite Servo Arms

Disclaimer

Specifications are sourced directly from manufacturer production sheets. Flying your 450 helicopter directly into the turf is an airframe limitation, not a servo malfunction.

Still Here?

Your cyclic linkages will not fix their own slop. Grab a set of ES09MD servos and give your 450 swashplate the zero-backlash precision it deserves.