FEETECH Continuous Rotation Servo FS5106R

Pololu item #: 3430 100 in stock
Brand: FEETECH

Price break Unit price (US$)
1 13.95
10 12.56
50 11.16


backorders allowed

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.

Key specs at 6 V: 95 RPM (no-load), 83 oz-in (6 kg-cm), 40 g

 Description Specs (9) Pictures (6) Resources (0) FAQs (1) On the blog (0) 

Overview

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):

This robotics servo is compatible with our servo controllers and has a Futaba-compatible output shaft, which means it works with our servo wheels.

Note that, as with most hobby servos, stalling or back-driving this servo can damage it.

FS5106R vs FS5106B

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.

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) Digital? Feed-
back?
Price
Max speed
(RPM)
Stall torque
(oz·in)
Max speed
(RPM)
Stall torque
(oz·in)
SpringRC SM-S4303R 54 71 43 46 41  41.3 × 20.7 × 40.2  $12.95
PowerHD AR-3606HB 71 93 62 83 40  40.5 × 20.0 × 38.0  $14.95
FEETECH FS5106R 95 83 78 70 39  40.8 × 20.1 × 38.0  $13.95
Parallax Feedback 360° 140 34 41  40.0 × 20.0 × 37.2  yes yes $19.95
Parallax (Futaba S148) 50 42 39 33 43  40.5 × 20.0 × 38.0  $13.95
FEETECH FT90R 170 21 135 18 9  23.2 × 12.5 × 22.0  yes $7.95
FEETECH FS90R 130 21 100 18 9  23.2 × 12.5 × 22.0  $4.95

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