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Servo horns / hooks

Products: 28
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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
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Regular price €3.02 Price €3.02

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...
Index: FTC-09192
Index: FTC-09192
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Regular price €4.75 Price €4.75

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.
Index: FTC-09183
Index: FTC-09183
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Regular price €3.02 Price €3.02

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...
Index: FTC-09185
Index: FTC-09185
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Regular price €2.58 Price €2.58

Aluminum servo mount Feetech FK-LS-001

Aluminum plate made by company Feetech in the form of the letter L, length 3.6 cm. Compatible in particular with standard servos.
Index: FTC-09206
Index: FTC-09206
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Regular price €1.93 Price €1.93

Aluminum servo mount Feetech FK-LS-001 - black

Aluminum plate made by company Feetech in the form of the letter L, length 3.6 cm. Compatible in particular with standard servos.
Index: FTC-12129
Index: FTC-12129
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Regular price €2.15 Price €2.15

Aluminum servo horn Feetech FK-AP-14 - 32mm / 6mm

Aluminium servo horn made by company Feetech, length of 3.2 cm and a diameter of the mounting hole is 6 mm. It has a shoulder in copper. It works with  standard  servos....
Index: FTC-09193
Index: FTC-09193
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Regular price €4.10 Price €4.10

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
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Regular price €3.45 Price €3.45

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.
Index: FTC-09204
Index: FTC-09204
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Regular price €2.58 Price €2.58

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...
Index: FTC-09187
Index: FTC-09187
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Regular price €4.32 Price €4.32

Feetech FK-US-003 Servo Mount - silver

Aluminum handle enables creating platforms controlled by servos. Dimensions: 64.5 x 56 x 25 mm. Weight: 21 g.
Index: FTC-10321
Index: FTC-10321
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Regular price €2.80 Price €2.80

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.
Index: FTC-09197
Index: FTC-09197
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Regular price €2.58 Price €2.58

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.
Index: FTC-09186
Index: FTC-09186
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Regular price €3.67 Price €3.67

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
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Regular price €3.45 Price €3.45

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
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Regular price €6.92 Price €5.54
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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.
Index: GRL-12538
Index: GRL-12538
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Delivery scheduled for 2022-08-18
Regular price €0.59 Price €0.59

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
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Delivery scheduled for 2022-08-26
Regular price €3.23 Price €3.23

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
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Delivery scheduled for 2022-08-18
Regular price €1.19 Price €1.19

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...
Index: FTC-09184
Index: FTC-09184
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Delivery scheduled for 2022-08-26
Regular price €4.10 Price €4.10

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
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Delivery scheduled for 2022-08-26
Regular price €2.58 Price €2.58

Aluminum servo mount Feetech FK-YS-001

Aluminum servo mount made by a company Feetech, with length of 6.3 cm Work in particular with standard servos.
Index: FTC-09209
Index: FTC-09209
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Regular price €1.93 Price €1.93

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
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Delivery scheduled for 2022-08-26
Regular price €2.37 Price €2.37

Aluminium Servo Mount Feetech FK-MU-001

Aluminum mount to attach the modules to the robot's feet. Dimensions: 90 x 45 x 29 mm. Weight 48 gr.
Index: FTC-09202
Index: FTC-09202
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Regular price €3.47 Price €3.47

Aluminum servo horn Feetech FK-AP-15 - 42mm / 6mm

Aluminium servo horn made by company Feetech, length of 4.2 cm and a diameter of the mounting hole is 6 mm. It has two shoulders, one in black. It works with  standard...
Index: FTC-09194
Index: FTC-09194
Waiting for delivery
Delivery scheduled for 2022-08-26
Regular price €4.75 Price €4.75

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.