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MacGregor MGB8346HV 45.5Kg/0.10s Brushless High Voltage Servo

MacGregor MGB8346HV 45.5Kg/0.10s Brushless High Voltage Servo



  • High Performance, Standard Size, Multi Voltage Digital Servo
  • High-Precision Steel Gears
  • Full CNC Aluminium Case with Anodised Purple Centre Case
  • High Quality Brushless Motor
  • Dual Ball Bearing
  • Long Working Life
  • 25T (Futabe Type) Spline
  • JR style plug and lead (300mm)
  • Waterproof IPX8 Grade



The MGB8346HV is a waterproof ultra high speed and torque brushless digital servo, part of MacGregor's range of high voltage servos designed for General use in RC Aeroplanes, Cars & Helicopters.

Battery chemistries such as Li-Po, Li-Ion, and Li-Fe have become very popular within the RC community. They are the standard for powering electric motors and have also gained popularity as receiver battery packs. The issue is the output voltage of these batteries is higher then the previous standard 4 - and 5-cell NiCd and NiMH packs, 4.8V and 6V respectively. The higher voltage is not an issue with the receivers but can be for the servos. Many servos will not operate at these higher voltages for very long before burning out the motors or electronics.


To get around this issue modellers have had to use a regulator to drop the voltage to an acceptable operating range for their servos, usually around 5 to 6 volts. The addition of a regulator adds a component that, should it fail, can cause the loss of a model.


MacGregor's HV servos are designed with motors and electronics that operate off the direct voltage of a 2-cell Li-Po, Li-Ion, or Li-Fe receiver battery pack. This eliminates the need for a regulator and lowers the chance for a power failure that can cause a catastrophic failure of your model. Also note that the HV servo specs are shown at the higher voltage (8.4V 2S LiPo) but will still operate on a standard 5-cell 6V NiCd, Ni MH battery with a reduction in performance of approximately 10% in speed and torque.



Dead band:2µs
Working frequency:1520µs / 330hz
Motor:Brushless Motor
Operating Voltage:5.0 ~ 8.4V
Operating Speed (5.0V):0.17sec/60°
Operating Speed (6.0V):0.14sec/60°
Operating Speed (7.4V):0.11sec/60°
Operating Speed (8.4V):0.10sec/60°
Stall Torque (5.0V)
Stall Torque (6.0V)
Stall Torque (7.4V)
Stall Torque (8.4V)
Dimensions:40.6 x 21 x 37.6mm
Connector Wire Length:JR 300mm
  • Stock Status

    Please contact us on our Facebook page or via our email for stock status & estimated delivery times before/when placing your order.

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