Article successfully added.

Pololu 42x19mm Räder (Paar)

€6.64 *

Prices incl. VAT plus shipping costs

Ready to ship today,
Delivery time appr. 1-3 workdays

  • Pololu
  • EXP-R25-301
  • 1090
  • 5
  • CN
  • 39269092
  • 0.036
P Secure bonuspoints now
This rugged wheel is designed to fit securely on the output shafts of our micro and 15.5D metal... more

This rugged wheel is designed to fit securely on the output shafts of our micro and 15.5D metal gearmotors. These gearmotors should be mounted onto the side of the hub with the protruding teeth, as shown on the right. The output shaft will slide into the socket easily at first but will achieve a snug fit when pressed through to the other edge of the hub.

The output shafts on the Solarbotics metal gear motors will also fit these wheels, but because they are shorter they will have to be mounted onto the other side of the wheel where the fit is tighter (which means the Solarbotics metal gearmotors will not work with the quadrature encoder associated with this wheel). These wheels will also work in this orientation on theorientation on the Pololu plastic gearmotors with 3mm D-shaft outputs.
 
Our extended micro metal gearmotor bracket is specifically designed to work with this wheel. Please note that the non-extended version of our mounting bracket (product #989) will not work well with this wheel.

 

 
Micro metal gearmotor with Pololu wheel 42×19mm and extended bracket.

Specifications
  • Diameter: 1.65" (42 mm)
  • Width of tire: 0.75" (19 mm)
  • Weight: 0.66 oz (19 g)
Encoder Feedback
The hub has twelve teeth, each 3 mm wide and separated from its neighbors by 3 mm gaps. We offer a quadrature encoder that uses these teeth to provide up to 48 counts per revolution (a linear resolution of just under 3 mm or 1/8"). The encoder is designed to work with our extended micro metal gearmotor bracket and our micro metal gearmotors as shown in the pictures below. The compact layout of the board fits all of the components within the envelope of the hub and tire, allowing the board to be mounted between the motor and a chassis. The encoder can be purchased as an individual unit or as a part of an encoder set that includes two encoders, a pair of extended brackets, and a pair of 42×19mm wheels.

 


The following oscilloscope capture shows the two encoder output channels while the 42×19mm wheel is spinning at close to 630 RPM. The two channels are approximately 90° out of phase, allowing you to determine both rotational speed and direction.

 

 
Oscilloscope capture of encoder outputs with the wheel spinning at 630 RPM.


Dimensions
  • Size: 42 x 19 mm
  • Weight: 19 g1
  • Shaft diameter: 3 mm2
General specificastions
  • Color:white
Notes:
  • 1. Per wheel, including tire.
  • 2. D-shaped hole for press fit onto Pololu micro and mini metal gearmotors.
Pololu Micro Metal Gearmotor Bracket Pair - Black Pololu Micro Metal Gearmotor Bracket Pair - Black
€4.59 *
Pololu Ball Caster with 3/4" Metal Ball Pololu Ball Caster with 3/4" Metal Ball
€2.99 *
Pololu Ball Caster with 3/8" Plastic Ball Pololu Ball Caster with 3/8" Plastic Ball
€1.99 *
Servo Extension Cable 30cm Male - Female Servo Extension Cable 30cm Male - Female
€2.49 *
Twisted Servo Extension Cable 30cm Male - Female Twisted Servo Extension Cable 30cm Male - Female
€2.70 *
FEETECH Standard Servo FS5103B FEETECH Standard Servo FS5103B
€5.95 *
SparkFun Opto-isolator Breakout SparkFun Opto-isolator Breakout
€6.10 *
Premium Male/Male Jumper Wires - 40 x 6" (150mm) Premium Male/Male Jumper Wires - 40 x 6" (150mm)
€4.22 *
FEETECH FS90 Micro Servo FEETECH FS90 Micro Servo
€3.57 *
Romi Chassis Ball Caster Kit - Blue Romi Chassis Ball Caster Kit - Blue
€2.65 *
Romi Encoder Pair Kit, 12 CPR, 3.5-18V Romi Encoder Pair Kit, 12 CPR, 3.5-18V
€8.95 *
Romi Chassis Kit - Blue Romi Chassis Kit - Blue
€26.95 *
298:1 Micro Metal Gearmotor HP 6V with Extended Motor Shaft 298:1 Micro Metal Gearmotor HP 6V with Extended...
€16.95 *
30:1 Micro Metal Gearmotor HP 6V with Extended Motor Shaft 30:1 Micro Metal Gearmotor HP 6V with Extended...
€16.95 *
Adafruit Ethernet FeatherWing Adafruit Ethernet FeatherWing
€21.36 *
14x4.5mm Wheel Pair for Sub-Micro Plastic Planetary Gearmotors 14x4.5mm Wheel Pair for Sub-Micro Plastic...
€2.15 *
Adafruit Feather M0 Adalogger Adafruit Feather M0 Adalogger
€21.36 *
Pololu 6V, 2.5A Step-Down Voltage Regulator D24V22F6 Pololu 6V, 2.5A Step-Down Voltage Regulator...
€9.45 *
Pololu 3.3V, 2.6A Step-Down Voltage Regulator D24V22F3 Pololu 3.3V, 2.6A Step-Down Voltage Regulator...
€8.50 *
Adafruit Feather 32u4 Adalogger Adafruit Feather 32u4 Adalogger
€23.50 *
Pololu Ball Caster with 1" Plastic Ball and Ball Bearings Pololu Ball Caster with 1" Plastic Ball and...
€6.62 *
Pololu Wheel for FEETECH FS90R Micro Servo, 60x8mm Pair - Black Pololu Wheel for FEETECH FS90R Micro Servo,...
€4.50 *
Adafruit Assembled Standard LCD 16x2 + extras - White on Blue Adafruit Assembled Standard LCD 16x2 + extras -...
€11.72 *
JST to Breadboard Jumper (3-pin) JST to Breadboard Jumper (3-pin)
€1.99 *
Pololu Ball Caster with 1" Plastic Ball Pololu Ball Caster with 1" Plastic Ball
€3.76 *
Pololu DRV8825 Stepper Motor Driver Carrier, High Current (Header Pins Soldered) Pololu DRV8825 Stepper Motor Driver Carrier,...
€9.95 *
Adafruit TB6612 1.2A DC/Stepper Motor Driver Breakout Board Adafruit TB6612 1.2A DC/Stepper Motor Driver...
€4.76 *
12mm Hex Wheel Adapter for 3mm Shaft (2-Pack) 12mm Hex Wheel Adapter for 3mm Shaft (2-Pack)
€4.22 *
Pololu Wheel 60x8mm Pair - Blue Pololu Wheel 60x8mm Pair - Blue
€6.50 *
Pololu 42x19mm Idler Wheel/Sprocket Pair - White Pololu 42x19mm Idler Wheel/Sprocket Pair - White
€6.30 *
SMD Kühlkörper 10x13 mit Wärmeleitfolie SMD Kühlkörper 10x13 mit Wärmeleitfolie
€1.80 *
Pololu Wheel 32x7mm Pair - White Pololu Wheel 32x7mm Pair - White
€4.75 *
Pololu Ball Caster with 1/2" Metal Ball Pololu Ball Caster with 1/2" Metal Ball
€1.99 *
Pololu Ball Caster with 3/8" Metal Ball Pololu Ball Caster with 3/8" Metal Ball
€1.99 *
Sharp GP2Y0A41SK0F Entfernungssensor (Analog) 4-30cm Sharp GP2Y0A41SK0F Entfernungssensor (Analog)...
€11.95 *
QTR-1RC Reflectance Sensor (2-Pack) QTR-1RC Reflectance Sensor (2-Pack)
€3.65 *
Pololu Wheel 80x10mm Pair - Black Pololu Wheel 80x10mm Pair - Black
€8.79 *
Viewed