FEETECH Standard Servo FS5106B
The FS5106B is a general-purpose, low-cost standard analog servo from FEETECH. Two ball bearings help reduce friction and improve performance. Servo horns and associated hardware are included. This servo can work with both 5 V and 3.3 V servo signals.
Key specs at 6 V: 0.16 sec/60°, 83 oz-in (6 kg-cm), 41 g.
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The FS5106B is a general-purpose standard-size analog servo from FEETECH. The output shaft is supported by two ball bearings for reduced friction. The FS5106B works with standard RC servo pulses, providing a running angle of approximately 180° over a servo pulse range of 700 µs to 2300 µs, and it has a 12″ (30 cm) cable that is terminated with a standard JR-style connector, which is Futaba-compatible. You can find more information about this servo in its datasheet (133k pdf).
An aluminum servo horn that works with this servo is available separately:
Power HD SR8 Aluminum 25T Servo Horn.
Compatibility warning: In November 2018 FEETECH changed the case of this servo, making it no longer compatible with our Mounting Bracket for Standard-Size Servos. They will be switching back to the original case style, which will resolve this problem for future batches, but at this time this servo might not work properly with our mounting bracket.The modification changed the location of the wires coming out of the servo, so the bracket would no longer fit. It is possible to permanently modify the bracket to work by cutting a notch out of it with a rotary tool or a pair of diagonal cutters, but do so at your own risk as it could damage the bracket.
Note that, as with most hobby servos, stalling or back-driving this servo can damage it.
FS5106B vs FS5106R
Two versions of this servo are available. This product is the FS5106B, which offers closed-loop position control over a limited range (approximately 180°). Alternatively, the FS5106R was designed specifically for open-loop speed control over an unlimited range. The FS5106B and FS5106R have identical dimensions and use the same motor and gear reduction.
Comparison to the Power HD 6001HB servo
This servo is a lower-cost alternative to the 6001HB from Power HD, which has nearly identical dimensions and similar performance. The two servos should be generally interchangeable for most applications. The picture below shows both the FS5106B and the 6001HB side by side: