Power HD Continuous Rotation Servo AR-3606HB
The AR-3606HB is a standard-sized servo that has been built by Power HD specifically for continuous rotation, making it an easy way to get your robot moving. It features two ball bearings on the output shaft for reduced friction, and it offers easy access to the rest-point adjustment potentiometer. This is the strongest continuous rotation servo we carry.
Key specs at 6 V: 71 RPM (no-load), 93 oz-in (6.7 kg-cm), 40 g, CCW rotation for pulse widths above the rest point.
|Description||Specs (9)||Pictures (7)||Resources (1)||FAQs (1)||On the blog (2)|
The servo cable is terminated with a Futaba-compatible JR-style connector.
The AR-3606HB is a standard-sized servo that has been built by Power HD specifically for continuous rotation. At 6 V, it has a maximum rotation speed of 71 RPM (no-load) and can produce up to 93 oz-in (6.7 kg-cm) of torque. It features two ball bearings on the output shaft for reduced friction, and it offers easy access to the rest-point adjustment potentiometer. The servo can be controlled using a direct connection to a single microcontroller I/O line without any additional electronics, which makes it a great actuator for beginner robotics projects. You can find more information about this servo under the specifications tab and in its datasheet (399k pdf).
The AR-3606HB continuous rotation servo converts standard RC servo position pulses into continuous rotation speed. The default rest point is 1.5 ms, but this can be adjusted by using a small screwdriver to turn the middle-point positioner. Pulse widths above the rest point result in counterclockwise rotation, with speed increasing as the pulse width increases; pulse widths below the rest point result in clockwise rotation, with speed increasing as the pulse width decreases.
The servo has a 12″ (300 mm) lead that is terminated with a JR-style connector and includes additional servo horns and mounting hardware. The following picture shows an example of the hardware that might be included (actual hardware could vary):
This robotics servo, which also sometimes goes by the Power HD part number AR3606HB, is compatible with our servo controllers and has a Futaba-compatible output shaft, which means it works with our servo wheels for standard servos (25T, 5.8 mm spline). This servo is also compatible with our Mounting Bracket for Standard-Size Servos:
If you are looking for a similar servo that is capable of limited-range position control as opposed to continuous rotation speed control, consider the Power HD standard servo 6001HB, which has almost the same size, weight, speed, and torque as the AR-3606HB.
Note that, as with most hobby servos, stalling or back-driving this servo can damage it.
Continuous rotation servo comparison
Continuous rotation servo size comparison. From left to right: SpringRC SM-S4303R, Power HD AR-3606HB, FEETECH FS5106R, Parallax Feedback 360°, Parallax (Futaba S148), and FEETECH FS90R.
|6 V||4.8 V||Weight (g)||Size (mm)||Direction
(1ms → 2ms)
|SpringRC SM-S4303R||54||71||43||46||41||41.3 × 20.7 × 40.2||CW→CCW||$15.95|
|SURPLUS SpringRC SM-S4303R 2-Pack||54||71||43||46||41||41.3 × 20.7 × 40.2||CCW→CW||$19.95 for a pair of servos|
|PowerHD AR-3606HB||71||93||62||83||40||40.5 × 20.0 × 38.0||CW→CCW||$16.95|
|FEETECH FS5106R||95||83||78||70||39||40.8 × 20.1 × 38.0||CW→CCW||$15.95|
|Parallax Feedback 360°||140||35||–||–||41||40.0 × 20.0 × 37.2||CW→CCW||$27.99|
|FEETECH FT90R||135||21||108||18||9||22.9 × 12.1 × 26.5||CW→CCW||$8.95|
|FEETECH FS90R||130||21||100||18||9||22.5 × 12.1 × 23.4||CW→CCW||$5.95|
People often buy this product together with:
|Power HD Standard Servo 3001HB|
|Micro Maestro 6-Channel USB Servo Controller (Assembled)|
|Mini Maestro 12-Channel USB Servo Controller (Assembled)|