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Pololu item #:
3430
Brand:
FEETECH
The FS5106R is a standard-sized servo that has been built by FEETECH 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 servo can work with both 5 V and 3.3 V servo signals.
Key specs at 6 V: 95 RPM (no-load), 83 oz-in (6 kg-cm), 43 g, CCW rotation for pulse widths above the rest point.
Compare all products in Continuous Rotation Servos or FEETECH Servos.
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FEETECH Continuous Rotation Servo FS5106R |
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An example of hardware included with the FEETECH FS5106R continuous rotation servo. Actual hardware might vary. |
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90 mm and 70 mm Pololu Wheels for Standard Servo Splines on FEETECH’s FS5106R and Power HD’s AR-3606HB continuous rotation servos. |
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Black Futaba servo wheel mounted on a FEETECH FS5106R continuous rotation servo. |
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Gears and ball bearings of the FEETECH Continuous Rotation Servo FS5106R. |
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FEETECH Continuous Rotation Servo FS5106R next to the Power HD Continuous Rotation Servo AR-3606HB. |
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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. |
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The FS5106R is a standard-sized servo that has been built by FEETECH (formerly known as Fitec) specifically for continuous rotation. At 6 V, it has a maximum rotation speed of 95 RPM (no-load) and can produce up to 83 oz-in (6 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.
The FS5106R 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):
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This robotics servo 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). It is also compatible with our Mounting Bracket for Standard-Size Servos:
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You can find more information about this servo in its datasheet (463k pdf) (please note that the free-run speed specifications appear to be incorrect in this datasheet; in our tests, the maximum no-load speeds were 95 RPM at 6 V and 78 RPM at 4.8 V, and these are the numbers we have published on our product page).
Note that, as with most hobby servos, stalling or back-driving this servo can damage it.
Two versions of this servo are available. This product is the FS5106R, which offers open-loop speed control over an unlimited range. Alternatively, the FS5106B offers closed-loop position control over a limited range (approximately 180°). The FS5106R and FS5106B have identical dimensions and use the same motor and gear reduction.
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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. |
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| 6 V | 4.8 V | Weight (g) | Size (mm) | Direction vs pulse (1ms → 2ms) |
Digital? | Feedback? | Price | |||
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| Max speed (RPM) |
Stall torque (oz·in) |
Max speed (RPM) |
Stall torque (oz·in) |
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| SpringRC SM-S4303R | 54 | 71 | 43 | 46 | 41 | 41.3 × 20.7 × 40.2 | CW→CCW | $14.95 | ||
| 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 | ||
| FEETECH FS5106R | 95 | 83 | 75 | 67 | 43 | 40.8 × 20.1 × 38.0 | CW→CCW | $15.95 | ||
| Parallax Feedback 360° | 140 | 35 | – | – | 41 | 40.0 × 20.0 × 37.2 | CW→CCW |  |
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$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 | ||
| Size: | 40.8 × 20.1 × 38 mm |
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| Weight: | 43 g |
| Digital?: | N |
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| Speed @ 6V: | 95 rpm |
| Stall torque @ 6V: | 83 oz·in |
| Speed @ 4.8V: | 75 rpm |
| Stall torque @ 4.8V: | 67 oz·in |
| Hardware included?: | Y |
| Lead length: | 12 in |
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Most standard radio control (RC) servos have three wires, each a different color. Usually, they are either black, red, and white, or they are brown, red, and orange/yellow:
Please check the specs for your servo to determine the proper power supply voltage, and please take care to plug the servo into your device in the proper orientation (plugging it in backwards could break the servo or your device).
Note: Some of the servos we carry also have an optional fourth green wire that is separate from the three standard ones. This wire provides access to the feedback potentiometer, allowing you to directly measure the position of the output. The servos with this extra wire have "with Position Feedback" at the ends of their product names. The picture below is an example of such a servo.
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FEETECH Sub-Micro Servo FS0403-FB with Position Feedback. |
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We are thrilled to announce the release of our wheels for micro and standard sized servos. These wheels are similar to our wheels for 3mm D shafts...