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Adapters for motors

Products: 27
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Aluminium Mounting Hub 5mm M3 - 2pcs. - Pololu 1998

Hub makes it easy to mount the wheel on the motor with the shaft of 5 mm using the M3 screws. The set has two pieces.
Index: PLL-01839
Index: PLL-01839
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Regular price PLN23.98 Price PLN23.98

Aluminium Mounting Hub 6mm M3 - 2pcs. - Pololu 1999

Hub makes it easy to mount the wheel on the motor with the shaft of 6 mm using the M3 screws. The set has two pieces.
Index: PLL-01838
Index: PLL-01838
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Regular price PLN25.20 Price PLN25.20

Aluminium Mounting Hub 4mm M3 - 2pcs. - Pololu 1997

Hub makes it easy to mount the wheel on the motor with the shaft of 5 mm using the M3 screws. The set has two pieces.
Index: PLL-01840
Index: PLL-01840
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Regular price PLN21.87 Price PLN21.87

LEGO Adapter - 3mm Shaft - Pololu 1011

The adapter allows you to connect the lego wheels with hexagonal shafts of 3 mm.
Index: PLL-00145
Index: PLL-00145
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Regular price PLN9.35 Price PLN9.35

Aluminium Mounting Hub 3mm M3 - 2pcs. - Pololu 1996

Hub makes it easy to mount the wheel on the engine with the shaft of 3 mm with screws of the M3 size. The set has two pieces.
Index: PLL-01841
Index: PLL-01841
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Regular price PLN19.11 Price PLN19.11

Flexible Shaft Coupler 5x5mm

The flexible connector made of aluminum. The structure is made from a single piece of material, it becomes elastic by removal of material, forming a spiral track. Hole...
Index: GRL-12525
Index: GRL-12525
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Regular price PLN7.28 Price PLN7.28

LEGO Adapter - 2mm Shaft - 2pcs. - Pololu 1001

The adapter allows you to connect the lego wheels with motors with round shafts with a diameter of 2 mm. Price for two pieces.
Index: PLL-01805
Index: PLL-01805
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Regular price PLN9.35 Price PLN9.35

Hexagonal Wheel Adapter - 12mm/4mm - 2pcs. - Pololu 2684

Aluminum adapter converting the 12 mm, hexagonal shaft suitable for different wheels, for 3 mm motor's shaft. The length of the adapter is equal to 17 mm.
Index: PLL-06090
Index: PLL-06090
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Regular price PLN12.60 Price PLN12.60

Motor Adapter Board TT - Kitronik 2594

Kitronik's TT motor adapter allows you to add a motor to your project without having to solder the connectors. Easy to install, it extends the life of the motors,...
Index: KTR-17690
Index: KTR-17690
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Regular price PLN3.98 Price PLN3.98

Aluminium Mounting Hub 8mm M3 - 2pcs. - Pololu 2693

Hub makes it easy to mount the wheel on the motor with the shaft of 8 mm using the M3 screws. The set has two pieces.
Index: PLL-09611
Index: PLL-09611
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Regular price PLN25.20 Price PLN25.20

Pulley with Bearing - 18x8x3mm

Aluminum pulley with bearing. Diameter: 18 mm, height: 8 mm, hole diameter: 3 mm.
Index: GRL-12581
Index: GRL-12581
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Regular price PLN8.05 Price PLN8.05

Hexagonal Wheel Adapter - 12mm/6mm - 2pcs. - Pololu 2686

Aluminum adapter converting the 12 mm, hexagonal shaft suitable for different wheels, for 6 mm motor's shaft. The length of the adapter is equal to 20 mm.
Index: PLL-06092
Index: PLL-06092
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Regular price PLN12.93 Price PLN9.70
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Hanging Pulley - 7x20mm

Double, pendant, metal pulley with the width of 7 mm and a diameter of 20 mm. The wheel can rotate 360 °. The sizes of the whole is: 45 x 20 x 11 mm.
Index: GRL-12515
Index: GRL-12515
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Regular price PLN4.47 Price PLN4.47

Hanging Pulley - 7x14mm

Double, pendant, metal pulley with the width of 7 mm and a diameter of 14 mm. The Wheel can rotate 360 °. Dimensions of the whole: 44 x 14 x 13 mm.
Index: GRL-12573
Index: GRL-12573
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Regular price PLN3.98 Price PLN3.98

MakeBlock 84743 - Shaft Clamping Hub 8mm M4 - type C

Shaft clamping hub 36mm for a DC motor. It has one threaded hole 4 mm and two holes of 4 mm, which facilitates the connection with encoders of the motors.
Index: TRB-10528
Index: TRB-10528
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Regular price PLN8.94 Price PLN8.94

Double Hanging Pulley - 7x20mm

Double, pendant, metal pulley with the width of 7 mm and a diameter of 20 mm. The wheel can rotate 360 °. The sizes of the whole is: 45 x 21 x 20 mm.
Index: GRL-12514
Index: GRL-12514
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Regular price PLN5.12 Price PLN5.12

Flexible Shaft Coupler 5x8mm

The flexible connector is made of aluminum. The structure is made from a single piece of material, it becomes elastic by removal of the material, forming a spiral track. Holes...
Index: GRL-12583
Index: GRL-12583
Waiting for delivery
Waiting time approx. 4-6 weeks
Regular price PLN6.26 Price PLN6.26

Hexagonal Wheel Adapter - 12mm/3mm - 2pcs. - Pololu 2682

Aluminum adapter converting the 12 mm, hexagonal shaft suitable for different wheels, for 3 mm motor's shaft. The length of the adapter is equal to 17 mm.
Index: PLL-06091
Index: PLL-06091
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Czas oczekiwania ok. 10-21 dni
Regular price PLN12.15 Price PLN12.15

Drive Shaft 3x20mm - 20pcs.

Set of 20 pieces of shafts with the length of 20 mm and a diameter of 3 mm.
Index: GRL-12519
Index: GRL-12519
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Waiting time approx. 4-6 weeks
Regular price PLN3.21 Price PLN3.21

Extended Hexagonal Wheel Adapter - 12mm/6mm - 2pcs. - Pololu 2687

Aluminum adapter converting the 12 mm, hexagonal shaft suitable for different wheels, for 6 mm motor's shaft. The length of the adapter is equal to 35 mm.
Index: PLL-06093
Index: PLL-06093
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Czas oczekiwania ok. 10-21 dni
Regular price PLN16.18 Price PLN16.18

MakeBlock 84740 - Shaft Connector 4mm M3

Shaft connector allows easy mounting of elements to the motor with 4 mm shaft with M4 screws. There are M3 holes on the hub for mounting on the motor shaft. Set includes two...
Index: TRB-10573
Index: TRB-10573
Waiting for delivery
Waiting time: approx. 10-30 days
Regular price PLN23.58 Price PLN23.58

Pulley with Bearing - 13x8x3mm

Aluminum pulley with bearing. Diameter: 13 mm, height: 8 mm, hole diameter: 3 mm.
Index: GRL-12580
Index: GRL-12580
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Unavailable
Regular price PLN7.15 Price PLN7.15

Rubber V-belt - 2x70mm - 10pcs.

Rubber strap is used to moving the drive, for example, from the motor's shaft to another module, the thickness of the strap  is 2 mm and diameter  is 70 mm. The set...
Index: GRL-12557
Index: GRL-12557
Waiting for delivery
Waiting time approx. 4-6 weeks
Regular price PLN3.82 Price PLN3.82

20T Gear - 3mm with Bearing

Aluminum gear with 20 teeth and the bearing. Diameter: 18 mm, height: 8 mm, hole diameter: 3 mm.
Index: GRL-12578
Index: GRL-12578
Waiting for delivery
Waiting time approx. 4-6 weeks
Regular price PLN7.24 Price PLN7.24

What to look for?

Many beginners are tricked by the apparent ease with which mobile robot wheels can be supposedly connected to motors. In many designs, the wheels are driven directly by a motor shaft or gearbox. In smaller, lightweight amateur robots, a press-fit connection can be used - some wheels have been adapted to this method of mounting, and the only thing to look for is to match the diameter of the wheel mounting hole to the dimensions of the motor axis. However, larger or more precise designs require other mounting methods that not only provide adequate rigidity (no excessive play) but also strength and stability. In such applications, aluminum motor adapters, commonly called mounting hubs, come to the rescue. Hubs take the form of rings that are fastened to the drive shaft by a clamping screw, and the driven element (e.g. a wheel) is connected to the adapter via four tapped holes.

Other adapter variants

In addition to clamping hubs (suitable for drive shafts with diameters from 3 mm to 8 mm), we also offer motor adapters in the form of hexagonal sleeves that are clamped by screws on both sides. Each adapter of this type is adjusted to strictly specified shaft diameters - the elements available in our store have on one side a hole of 12 mm diameter, and on the other side - 3 mm, 4 mm or 6 mm. Of course, in addition to attaching the drive wheels of mobile robots, this type of elements can also be used in other mechanisms - for example to connect the axes of stepper motors to the drive screws of CNC devices or self-constructed 3D printers. In this category you will also find a number of other types of adapters for motors, such as bearing pulleys (smooth or toothed), clamping hubs compatible with MakeBlock system or adapters that allow you to connect different types of motors to LEGO wheels.

Connecting encoders to robot mechanics

Special attention should be paid to how the motor shaft is connected to the encoder axis. Because encoders are precise and relatively delicate sensors, they should not be subjected to any vibration or stress that might occur if the sensor axis is not correlated accurately enough with the motor shaft axis. In such situations, flexible motor adapters, usually called encoder couplers, should be used. These types of components accurately transfer the rotation to the encoder shaft, reducing unwanted circular movement of the axis (so-called runout) and thus protecting the sensitive encoder interior.