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Corona SB-3029 S.Bus Digital MG Servo 4.5kg / 0.12sec / 32g

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Corona SB-3029 S.Bus Digital MG Servo 4.5kg / 0.12sec / 32g


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Corona S.Bus digital servo's are up there with the best that are on the market today at a price that is very affordable, high resolution and accurate centering are just two of the many features they have.

• S.Bus compatible
• High resolution
• The tightest deadband
• Accurate positioning and centering
• Faster control response
• Quicker acceleration
• Constant torque throughout the servos travel
• Increased holding power when stationary
• High precision potentiometer


Model: SB-3029
Voltage: 4.8/6v
Speed: 0.11/0.12sec 60°
Torque: 3.8/
Current Draw: 300/400mA
Dead Band Width: iÜ3usec
Travel: 40°/one side pulse travelling
Bearing: MR106
Gears: Metal
Servo Wire length: 300mm
Operating Temp: -20/+60°C
Weight: 32g
Dimensions: 32.5 x 17 x 34.5mm
Spline count: 25

What is S.BUS?
Different from conventional radio control systems the
S.BUS system uses data communication to transmit control signals from a receiver to a servo, gyro, or other S.BUS compatible device. This data includes commands such as “move the channel 3 servo to 15 degrees, move the channel 5 servo to 30 degrees” to multiple devices. The S.BUS devices execute only those commands for their own set channel. For this reason, it can be used by connecting multiple servos to the same signal line.

[Operation by conventional radio control]
An S.BUS servo connected to a conventional receiver operates as a conventional servo.

  • Servo Torque(kg)(min. 0.01kg) 4.50
  • Servo Speed (Sec/60deg) 0.11
  • Servo A(mm) 38.00
  • Servo B(mm) 33.00
  • Servo C(mm) 34.00
  • Servo D(mm) 17.00
  • Servo E(mm) 45.00
  • Servo F(mm) 25.00

Dimension Diagram Guide

  • attributeset-11


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Robert | Verified Buyer

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Brittle Case

Mar 16, 2017

The mounting ears break off much too easily. Don't know what kind of plastic Corona uses but it's so brittle. The arms are a total joke. The gear train has the normal slop. The speed and torque are decent. The electronics being SBUS is the only saving grace for this servo.

Alexey | Verified Buyer

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Customer Rated

Jul 17, 2014

Quality of manufacture the good.
Inside metal gears and two ball-bearings.
For programming I used the Futaba CUI-2 interface and Futaba PC Link software.
Everything works perfectly.

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