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Wishlist

Shelly Blu Button Tough 1 - Bluetooth action and scene activation button - ivory

Index: INN-25237

Filament Polymaker PolyLite Luminous PLA 1,75mm 1kg - Rainbow

Index: PLM-25194

3D printer - Elegoo Saturn 4 Ultra - resin-based

Index: ELG-25515

Sonoff THS01 - temperature and humidity sensor, RJ9

Index: INN-25481

Raspberry Pi CM5 Compute Module 5 - 8GB RAM + WiFi/Bluetooth - CM5108000

Index: RPI-25898

Raspberry Pi CM5 Compute Module 5 - 8GB RAM + 32GB eMMC + WiFi/Bluetooth - CM5108032

Index: RPI-25900

Shelly i4 Gen3 - 4-channel WiFi scene controller

Index: INN-25607

Limit switch 50mm - Pololu 1403

Index: PLL-00017

All new products

LED strip RGBW SK6812 - digital, addressed - IP65 144 LED / m, 43.2 W / m, 5V - 1m

Index: DNG-12486

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Plastic case Kradex Z60 - 74x68x36mm black

Index: KDX-05935

Reduced price
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Metal electric lock - 12V

Index: MOD-08355

Reduced price
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PicoBricks IoT Expert Kit - development kit for Raspberry Pi Pico

Index: RBI-22768

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Creality Sermoon V1 and Sermoon V1 Pro 3D printer touch screen 3,4 cal

Index: CRL-20836

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RP2040 Stamp Round Carrier - base board for RP2040 microcontroller - 16 NeoPixels LEDs...

Index: PIM-22456

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MC33926 2-channel motor driver 28V/3A - Shield for Arduino - Pololu 2503

Index: PLL-01417

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Headphones stereo with microphone - Esperanza Sonata EH118

Index: KAB-04311

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USB type C - DisplayPort cable - 1,8m - Akyga AK-AV-16

Index: RCO-22282

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M5Stamp UART-RS485 module - M5Stack S001

Index: MSS-21572

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Power supply justPi for Raspberry Pi 3B+/3B/2B/Zero microUSB black 5V/2,5A

Index: SHR-14515

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MakeBlock 90040 - Ultimate Robot Kit 2.0 - compatible with Arduino and Scratch

Index: ROB-09550

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Servo horns / hooks

Servos are no longer inherently associated not only with RC modeling, but also the widely understood robotics, both amateur and professional. The huge range of servos available on the market allows you to build devices that operate quickly, precisely and efficiently. In the case of small micro type servos, the orbs are usually sold together with the servo. For larger standard class drives, the range of compatible orbs is as wide as the range of applications. In this category you will find robust, aluminium orbs for standard servos.

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Products: 21

Round aluminum servo horn - 20mm / 6mm

Aluminum servo horn with a diameter of 20 mm and the mounting hole 6 mm. It is circular in shape. Works with standard servos. The set also includes mounting screws.

5.0 (2)

Index: GRL-12538

Index: GRL-12538

Aluminum Servo Round Horn Set Spline 25T FK-RP-001

Round aluminum servo horn Feetech FK-RP-001 - 20mm / 6mm

Aluminium servo horn made by company Feetech, diameter of 2 cm and a diameter of the mounting hole is 6 mm. It is in a circular shape. It works with standard servos. The...

Index: FTC-09198

Index: FTC-09198

FEETECH Metal Servo Arm Horn Spline 25T 2.5CM FK-AP-9

Round aluminum servo horn Feetech FK-AP-9 - 25mm / 6mm

Aluminium servo horn made by company Feetech, length of 2.5 cm and a diameter of the mounting hole is 6 mm. It is in a circular shape. It works with standard servos.

Index: FTC-09190

Index: FTC-09190

Aluminum servo horn 35mm / 6mm

Aluminium servo horn with length of 35 mm and a diameter of the mounting hole 6 mm. It has a shoulder in ranodom colour. Working with standard servos.

Index: GRL-12539

Index: GRL-12539

Aluminum servo horn Feetech FK-AP-12 - 50mm / 6mm

Aluminium servo horn made by company Feetech, length of 5 cm and a diameter of the mounting hole is 6 mm. It has one screw for adjustment. It works with standard...

5.0 (1)

Index: FTC-09192

Index: FTC-09192

Feetech FK-AP-034 15T - 25x6mm aluminium ploughing

Aluminium servo horn Feetech FK-AP-034 15T - 25x6mm

Feetech aluminium ploughing with a diameter of 25 mm and a height of 8.5 mm. The mounting hole has a diameter of 6 mm and number of teeth 15T. The round barrel is compatible...

Index: FTC-15918

Index: FTC-15918

Aluminum servo horn Feetech FK-AP-2 - 30mm / 6mm

Aluminium servo horn made by company Feetech, length of 3 cm and a diameter of the mounting hole is 6 mm. It comes in blue color. Working with standard servos.

5.0 (2)

Index: FTC-09183

Index: FTC-09183

Aluminum servo horn Feetech FK-AP-4 50mm / 6mm

Aluminium servo horn made by company Feetech, length of 5 cm and a diameter of the mounting hole is 6 mm. It has two shoulders, comes in color black. Working with standard...

5.0 (1)

Index: FTC-09185

Index: FTC-09185

Aluminum servo horn Feetech FK-AP-16 - 26mm / 6mm - black

Aluminium servo horn made by company Feetech, length of 2.6 cm and a diameter of the mounting hole is 6 mm. It has a shoulder in black. It works with standard servos.

Index: FTC-09195

Index: FTC-09195

Aluminum servo horn Feetech FK-AP-3-BK - 35mm / 6mm

Aluminium servo horn made by company Feetech, length of 3.5 cm and a diameter of the mounting hole is 6 mm. There are two screws for adjustment. Working with standard...

5.0 (1)

Index: FTC-09184

Index: FTC-09184

Aluminum servo horn Feetech FK-AP-17 - 42mm / 7mm

Aluminium servo horn made by company Feetech, length of 4.2 cm and a diameter of the mounting hole is 7 mm. It has a shoulder in grey. It works with FS6530M servo.

Index: FTC-09196

Index: FTC-09196

Aluminum servo horn Feetech FK-AP-6 - 70mm / 6mm

Aluminium servo horn made by company Feetech, length of 7 cm and a diameter of the mounting hole is 6 mm. There are two screws for adjustment. It works with standard...

5.0 (1)

Index: FTC-09187

Index: FTC-09187

Aluminum servo horn Feetech FK-AP-18 - 18mm / 6mm

Aluminium servo horn made by company Feetech, length of 1.9 cm and a diameter of the mounting hole is 6 mm. It has a shoulder in black. It works with standard servos.

5.0 (1)

Index: FTC-09197

Index: FTC-09197

Aluminum servo horn PowerHD Arm D 35mm / 6mm

Aluminium PowerHD black servo barrel, dimensions 35 x 15 x 5 mm . The mounting hole has a diameter of 6 mm, number of teeth is 25T. It has two screws for adjustment....

Index: PHD-15755

Index: PHD-15755

Aluminum servo horn Feetech FK-AP-10 - 96mm / 6mm

Aluminium servo horn made by company Feetech, length of 9.6 cm and a diameter of the mounting hole is 6 mm. There are two screws for adjustment. It works with standard...

5.0 (1)

Index: FTC-09191

Index: FTC-09191

FEETECH Metal Servo Arm Horn Spline 25T 9.5CM FK-AP-8

Aluminum servo horn Feetech FK-AP-8 - 95mm / 6mm

Aluminium servo horn made by company Feetech, length of 9.5 cm and a diameter of the mounting hole is 6 mm. There are two screws for adjustment. It works with standard...

Index: FTC-09189

Index: FTC-09189

Aluminum servo horn Feetech FK-AP-5 - 30mm / 6mm

Aluminium servo horn made by company Feetech, length of 3 cm and a diameter of the mounting hole is 6 mm. It has one screw for adjustment. It works with standard servos.

5.0 (1)

Index: FTC-09186

Index: FTC-09186

On sale!
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Aluminum servo horn Feetech FK-AP-7 - 25mm / 6mm - orange

Aluminium servo horn made by company Feetech, length of 2.5 cm and a diameter of the mounting hole is 6 mm. It has one screw for adjustment. It works with standard servos.

5.0 (1)

Index: FTC-09188

Index: FTC-09188

Aluminum Servo Mount Feetech FK-FP-001

Aluminum plate is used as a foot of a robot, connecting with a side mount of a servo. Dimensions: 105 x 60 x 2 mm. Weight: 25g.

Index: FTC-09201

Index: FTC-09201

Metal Flat Key Shaft Flange Plate-A wheel adapter for servos - black - Waveshare 24985

Adapter from Waveshare intended for use with servomechanisms . It enables easy and quick construction of a drive based on a servomechanism controlled via a serial bus.

Index: WSR-23727

Index: WSR-23727

Feetech FK-US-003 Servo Mount - Black

Aluminum handle enables creating platforms, controlled by servos. Dimensions: 64.5 x 56 x 25 mm. Weight: 21 g.

5.0 (1)

Index: FTC-09204

Index: FTC-09204

Torque or lesson of physics

The measure of how "strong" the servo is, i.e. with which mechanical loads it can cope, is torque in mechanics. Without going into vector complexities, we can assume that in the case of a drive shaft, the so-called torque is the product of the arm length and the force exerted on the end of the arm by our drive (motor or servo). Therefore the unit used for stepper motors or DC motors (especially those with built-in gears) is the newton meter - denoted by the unit Nm. For servos, it is customary to use a slightly different unit for torque, i.e. kg*cm (1 kg*cm = 0.0981 Nm) - in the case of RC models or small mechanisms, this conversion turns out to be much more intuitive. In addition to determining the power of the drives themselves, you must also select the appropriate servo cranks that will be able to transmit the set forces without excessive overload.

Choosing the right horn for your application

It is obvious that the longer the arm that transmits the drive, the more torque will be required to perform the job. Therefore, the mechanical strength becomes particularly important for longer armatures. Metal servo arms are irreplaceable in this case, not only because of the lack of deformation (which may occur in longer plastic servo arms), but also due to solid execution of holes which are used for connecting to cables or other elements of the mechanism. The basic parameters are the length of the arm and the number of arms - sometimes a single-arm type is sufficient, but for other applications where you need to operate two cables moving in opposite directions, you will need a double-ended type. Some orifice plates are shaped like a round disc with several mounting holes. Such elements are especially suitable for servos with unlimited rotations (servos 360 degrees, i.e. designed for continuous operation).

Servos at Botland online store

In our offer you will find a wide selection of aluminum orbs, compatible with standard type servos. The 25T mark, visible on the upper surfaces of the eartags, informs about the design of the servo drive shaft - it is a knurled shaft with 25 teeth and mounting hole diameter of 3 mm. We have both straight orbs of various lengths, with one or two arms, as well as circular (disk) or even custom profiled orbs (e.g. Feetech FK-AP-10). We offer double-armed spanners in symmetrical (e.g. FK-AP-4) or asymmetrical (FK-AP-15) versions. In this category you will also find a range of metal holders, allowing you to build "gimbal" type mechanisms.