Futaba S9551 Low Profile Digital Servo for Touring Cars and Ailerons [S9551]

Price:

CAD$113.43

Brand:

Futaba

Model:

S9551

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R/C Models - System - Servo - Low Profile Servos

Compact Power from Futaba S9551

The Futaba S9551 Low Profile Digital Servo delivers a balanced mix of torque and speed for hobby pilots and racers. Its slim profile fits into tight wing bays and low-clearance car mounts while keeping precise control response.

Standout Features

Coreless Motor: Lighter rotor mass for quicker response and crisper centring than standard motors.
Metal Gears: Tough geartrain engineered to resist stripping under heavy loads.
Dual Ball Bearings: Smooth shaft support that reduces wobble and wear over time.
Dust and Water Resistant: Sealed design helps protect internals from grit and light moisture, though it is not fully waterproof.

Specifications

Speed: 0.14 sec/60° at 4.8V; 0.11 sec/60° at 6.0V
Torque: 98 oz-in (7.0 kg-cm) at 4.8V; 122 oz-in (8.8 kg-cm) at 6.0V
Weight: 1.6 oz (45 g)
Dimensions: 1.6 x 0.8 x 1.0 inches (41 x 20 x 25 mm)
Mounting Hole Centers: 0.39 inches (10 mm)
Horn Screw Size: 3x8 mm

Suited to enthusiasts upgrading control systems, the Futaba S9551 gives dependable torque and speed for both track racing and precision flying tasks.

What battery voltage works best with the S9551?

Use 4.8V for standard duty and up to 6.0V when you need faster speed and higher torque, making sure your receiver and ESC support the voltage increase.

Can I fit the S9551 in a 1/10 touring car servo bay?

Yes, the compact 41 x 20 x 25 mm footprint and 10 mm mounting centres match common 1/10 scale servo bays, but check clearance for linkages and horns.

How should I maintain the metal gears?

Keep the gearbox free of dirt, avoid overloading the servo, and inspect gears periodically; replace gears if you detect excessive play or noise.

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