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3216-0001-0005

Shark-5 Servo Gearbox (0.70 sec/60°, 14 RPM 2360 oz-in Torque, 504° Rotation)

£355.56

This Shark-5 Servo Gearbox is driven by the Hitec's flagship HSR-M9382TH brushless, titanium geared servo. This gearbox introduces a 5:1 external gear ratio in order to lessen the range while increasing the torque and precision five-fold.

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Having the servo mounted in the gearbox isolates the load to a steel hub-shaft that is supported in a pair of ball bearings to protect the servo from any axial loads. The gearbox opens up a world of mounting possibilities given the M4 threaded holes on each side which are on the grid pattern for compatibility throughout the goBILDA® system. The hub on the top of the gearbox provides threaded holes to fasten to, but you can also opt to fasten straight to the aluminum output gear using M4 hardware and standoffs or spacers. The 8mm REX bore of the hub-shaft can drive an 8mm REX shaft or act as a wire pass-thru.

If you’re not accustomed to using a servo gearbox, it’s just like a normal servo only larger. While the range and torque might be greater than the servos you’re used to, the control signal is identical. It will simply plug into an R/C receiver, an Arduino, Raspberry Pi, or REV controller. Furthermore, since the servo hasn’t been modified in any way, it is FTC legal!

This Servo Gearbox is available in both feedback mode, and continuous mode. In feedback mode, your signal controls the position. In continuous mode, your signal controls the speed and direction. Regardless of which you purchase, it can always be toggled to the other mode with a DPC-11 servo programmer (44429).

Weight 224g
Gear Ratio 5:1
No-Load Speed (6.0V) 0.85sec/60° (11.8 RPM)
No-Load Speed (7.4V) 0.70sec/60° (14.3 RPM)
Stall Torque (6.0-7.4V) 2360 oz-in (170 kg.cm)
No-Load Current (6.0V) 260mA
No-Load Current (7.4V) 270mA
Stall Current (6.0-7.4V) 2700mA
Motor Type Brushless DC
Direction with Increasing PWM Signal Counter Clockwise
Max PWM Range 800-2200μsec
Travel per μsec 0.36°/µsec
Max Rotation 504° (1.4 Turns)
Pulse Amplitude 3-5V
Deadband Width 1 μsec
Wire Length 300mm (11.81")
Wire Gauge 22AWG
Connector Type 3-Pos TJC8 Servo Connector [MH-FC]

HOW FAR WILL THIS SERVO GEARBOX ROTATE WHEN IN FEEDBACK MODE?

The answer to this question is partially dependent on what you are using to control the servo that drives the gearbox. Click for a quick video explanation. As you can see below, a Servo Travel Tuner allows you to achieve maximum rotation, but it is just as useful to dial down the rotation to suit your needs.

With an Average Radio System:
0.9 Turns (324°)
Your average transmitter and receiver will output a relatively narrow PWM signal range.

Radio System + Travel Tuner:
1.4 Turns (504°)
Adding a Servo Travel Tuner to your radio system setup will allow you to achieve wide PWM signal ranges.

Wide Signal Controllers:
1.4 Turns (504°)
Controllers such as Arduinos, and Raspberry Pi servo hats can usually send a wide signal.