- Main categories
-
- 3D PRINTING
- ARDUINO
- AUTOMATION
- BOOKS
- CYBERSECURITY
- EDUCATION
- ELECTRONICS
- Cables
- Cameras and accessories
- Communication
- Conductive materials
- Connectors
- ARK connectors (Terminal Block)
- Coaxial connectors (RF)
- Connectors
- Crocodile clip
- D-Sub drawer connectors
- DC power connectors
- FFC/FPC ZIF connectors
- Goldpin connectors
- IDC connectors
- JACK connectors
- JST connectors
- Jumpers
- Memory cards slots
- Other connectors
- Pogo pin
- RJ45 sockets
- Slip ring connector
- Supports
- Szybkozłącza
- USB connectors
- USB PD Adapters for Laptops
- Cooling
- Displays
- Electronic modules
- A/D and D/A converters
- Audio
- Barcode readers
- CAN converters
- Converters USB - UART / RS232
- Data logger
- DDS/PLL generators
- Digital potentiometers
- Encoders
- Expanders of the I/O
- Fingerprint readers
- HMI modules
- Image and video
- JTAG accessories
- Keyboards, buttons
- LED drivers
- Memory card readers
- Memory modules
- Modules with power outputs
- Motor controllers
- Power modules
- RS485 converters
- RTC modules
- Servo Controllers
- TSOP infrared receivers
- USB Converters - I2C / 1-Wire / SPI
- Voltage converters
- Gadgets
- GPS
- Intelligent clothes
- LED - diodes, displays, stripes
- Luminous wires and accessories
- Machine vission (MV)
- Memory cards and other data storages
- Passive elements
- PC accessories
- Printers
- Prototype boards
- Relays
- Semiconductors
- A/C converters (ADC)
- Analog systems
- Audio systems
- Bridge rectifiers
- Button
- D/A Converters (DAC)
- DDS synthesizers
- Digital circuits
- Diodes
- Drivers of motors
- DSP microprocessors
- Energy counters
- Energy harvesting
- ESD security
- IGBT drivers and bridges
- Interface systems
- LED drivers
- Logic converters
- Memory
- Microcontrollers
- Optotriacs and optocouplers
- Other
- PLL generators
- Power systems
- Programmable systems
- Resetting systems
- RF systems
- RTC systems
- Sensors
- SoC systems
- Timery
- Touch sensors
- Transistors
- Sensors
- Accelerometers
- Air humidity sensors
- Air quality sensors
- Current sensors
- Distance sensors
- Flow sensors
- Gas sensors
- Gyroscopes
- Hall sensors
- Humidity sensors
- Infrared sensors
- Light and color sensors
- Liquid level sensors
- Magnetic sensors (compasses)
- Medical sensors
- Motion sensors
- PH sensors
- Position sensors
- Pressure sensors
- Pressure sensors
- Reflection sensors
- Sensors 6DOF/9DOF/10DOF
- Sensors of liquid quality
- Temperature sensors
- Vibration sensors
- Sound transducers
- Switches and buttons
- Cables
- FPGA DEVELOPMENT KITS
- Measuring devices
- MECHANICS
- MINICOMPUTERS (SBC)
- POWER
- RASPBERRY PI
- Accessories for Raspberry Pi
- Audio video cables for Raspberry Pi
- Case Raspberry Pi
- Cooling for Raspberry Pi
- Displays for Raspberry Pi
- Extension modules for Raspberry Pi
- Memory cards for Raspberry Pi
- Power for Raspberry Pi
- Raspberry Pi 3 model A+
- Raspberry Pi 3 model B
- Raspberry Pi 3 model B+
- Raspberry Pi 4 model B
- Raspberry Pi 400
- Raspberry Pi 5
- Raspberry Pi 500
- Raspberry Pi cameras
- Raspberry Pi Compute Module
- Raspberry Pi model A/ B+/2
- Raspberry Pi Pico
- Raspberry Pi prototyping
- Raspberry Pi Zero
- Raspberry Pi Zero 2 W
- RETIRED PRODUCTS
- SALE
- STARTER KITS, PROGRAMMERS, MODULES
- Atmel SAM
- Atmel Xplain
- AVR
- Coral
- DFRobot FireBeetle
- ESP32
- ESP8266
- Feather / Thing Plus
- Freedom (Kinetis)
- M5Stack
- Micro:bit
- Nordic nRF
- Other development kits
- Particle Photon
- Peripheral modules
- PIC
- Raspberry Pi RP2040
- RFID
- RISC-V
- Seeed Studio LinkIt
- Segger programmers
- SOFTWARE
- Sparkfun MicroMod
- STM32
- STM32 Discovery
- STM32 MP1
- STM32 Nucleo boards
- STM8
- Teensy
- Universal programmers
- WRTNode
- XIAO/Qt PY
- Atmel SAM
- WORKSHOP
- Adhesives and gluers
- Chemistry
- CNC milling machines
- Crimping tools
- Dispensing needles
- Heat-shrink tubing
- Insulation strippers
- Knives and scissors
- Laboratory power supplies
- Mikroskopy
- Mini drills and grindrers
- Organizers
- Power strips
- Power tools
- Safety glasses
- Soldering
- Antistatic mats and accessories (ESD)
- BGA balls
- BGA rework stations
- Brushes and ESD brushes
- Desoldering Wick
- Handles, magnifiers
- Heat guns
- Heaters and soldering irons
- Laminates
- Portable soldering irons
- Silicone Soldering Mats
- SMD Accessories
- Soldering accessories
- Soldering chemistry
- Soldering irons
- Soldering pastes
- Soldering pots
- Soldering stations
- Soldering tips
- Sponges and cleaners
- Stand for soldering irons
- Tin
- Tin extractors
- Ultrasonic cleaners
- Tapes (aluminum, kapton, copper, insulating)
- Tools
- Tweezers
- Vices
- 3D PRINTING
New products
New products
zł102.45 tax excl.
Motor with 25 mm diameter and 52 mm length, 34:1 metal gear, 12 V operating voltage, 0,2 A to 2,1 A power consumption, 220 RPM speed and 4,5 maximum torque. Pololu 3228
Free shipping
free shipping in Poland for all orders over 500 PLN
Same day shipping
If your payment will be credited to our account by 11:00
14 days for return
Each consumer can return the purchased goods within 14 days
Description
This gearmotor consists of a medium-power, 12 V brushed DC motor combined with a 34,014:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.
Features
- Supply voltage: 12 V
- Gear ratio: 34,014:1
- Speed: 220 RPM
- Maximum torque: 4,5 kg*cm
- Minimum current consumption: 0,2 A
- Maximum current consumption: 2,1 A
- Diameter: 112 mm
- Length: 52 mm
- Weight: 88 g
Note!
Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. For these gearboxes, the recommended upper limit for instantaneous torque is 15 kg-cm (200 oz-in); we strongly advise keeping applied loads well under this limit. Stalls can also result in rapid (potentially on the order of a second) thermal damage to the motor windings and brushes, especially for the versions that use high-power (HP) motors; a general recommendation for brushed DC motor operation is 25% or less of the stall current.Supply voltage
Pololu 25D motors are available in two versions with the recommended voltage of 6 V and 12 V. These motors differ in power and current consumption. The power of LP motors in the 6 V and 12 V versions differs slightly, and the current consumed by the 12 V LP motors is more than half that of the 6 V LP motors. The power of the HP 12 V motors is noticeably greater than the HP 6 V, so the difference in the consumed current is not as big as in LP engines. It is possible to power the motors with a lower or higher voltage, but it is associated with lower power or a shorter life of the motors, respectively.
Dimensions and weight
All motors have the same dimensions. Depending on the gear ratio, the gears differ in length, as shown in the technical drawing below. The metal gear housing has two tapped holes for M3 screws. The gearmotors weigh from 60 g to 110 g depending on the gear size.
Dimensions of 25D motors in version with encoders (units in mm). |
---|
Dimensions of 25D motors without encoders (units in mm). |
Do not screw too far into the mounting holes as the screws can hit the gears. We recommend screwing no more than 6 mm into the M3 mounting holes.
Magnetic encoder
All Pololu 25D gearmotors are available in versions with a magnetic encoder and without an encoder. The encoder is mounted on an additional shaft on the opposite side of the main shaft. The shaft on which the encoder is mounted is led directly from the motor (without gear), which allows the installation of the encoder which works much more accurately than if it was mounted on the shaft behind the gear. The use of an encoder allows to determine the speed and position of the motor shaft and to apply these values in the PID controller feedback loop.
Single-sided shaft motor | Motor with double-sided shaft and mounted encoder | A motor with a double-sided shaft, an encoder and a removed plastic cover |
Using the encoder
A two-channel Hall effect encoder is used to sense the rotation of a magnetic disk on a rear protrusion of the motor shaft. The quadrature encoder provides a resolution of 48 counts per revolution of the motor shaft when counting both edges of both channels. To compute the counts per revolution of the gearbox output, multiply the gear ratio by 48. The motor/encoder has six color-coded, 8″ (20 cm) leads terminated by a 1×6 female header with a 0.1″ pitch, as shown in the main product picture. This header works with standard 0.1″ male headers and our male jumper and precrimped wires. If this header is not convenient for your application, you can pull the crimped wires out of the header or cut the header off. The following table describes the wire functions.
|
|||||||||||||||
Encoder A and B outputs for 25D mm HP 6V metal gearmotor with 48 CPR encoder (motor running at 6 V). |
Wheels
The 4 mm diameter gearbox output shaft works with Pololu universal aluminum mounting hub for 4mm shafts, which can be used to mount our larger Pololu wheels (60mm-, 70mm-, 80mm-, and 90mm-diameter) or custom wheels and mechanisms to the gearmotor’s output shaft as shown in the left picture below. Alternatively, you could use our 4mm scooter wheel adapter to mount many common scooter, skateboard, and inline skate wheels to the gearmotor’s output shaft as shown in the right picture below.
Black Pololu 80x10mm wheels | White Pololu 80x10mm wheels | Black Pololu 80x10mm wheel with motor mounted |
Wild Thumper wheels Chrome | Wild Thumper wheels red matalic | Wild Thumper wheel with engine mounted |
Black scooter/skate wheels with 200 mm, 144 mm, 100 mm, 84 mm, and 70 mm diameters. | Aluminum Scooter Wheel Adapters |
Brackets
The gearmotor face plate has two mounting holes threaded for M2.5 screws, and you can use our custom-designed 20D mm metal gearmotor bracket (shown in the left picture below) to mount the gearmotor to your project via these mounting holes and the screws that come with the bracket.
Brackets for 25D engines | 25D engine with attached bracket and adapter | 25D engine mounted on a platform with a Scooter wheel |
Motor controllers
We have a number of motor controllers and motor drivers that work with these 20D mm metal gearmotors. In particular, we recommend MC33296-based motor drivers, for which we have basic single and dual carriers and a dual-channel shield for Arduino.
RoboClaw 2x7A Motor Controller (V5B) | Pololu Dual VNH5019 Motor Driver Shield for Arduino | Jrk G2 24v13 - DC motor controller |
Current sensors
We have an assortment of Hall effect-based current sensors to choose from for those who need to monitor motor current:
Current sensor module (0-20A) with ACS712-20 | ACHS-7124 Current Sensor Carrier ±40A | Pololu 2452 - ACS711EX Current Sensor Carrier -15.5A to +15.5A |
Types and parameters of 25D Pololu engines:
Our offer includes motors with gear ratios from 4.4: 1 to 499: 1, with a rated voltage of 6 V and 12 V. All variants of motors with gears are available with and without a magnetic encoder. In addition, gearedless encoder motors are available to fit gears from the rest of the 25D motors.
Gear ratio | Type | Rated Voltage |
No-Load Speed | Stall Torque | No-Load Current |
Stall Current |
Single-Shaft | Dual-Shaft |
---|---|---|---|---|---|---|---|---|
1:1 | HP | 12 V | 10 200 RPM | 0.4 kg*cm | 0.3 A | 5.6 A | LINK | |
6 V | 10 000 RPM | 0.35 kg*cm | 0.275 A | 6.5 A | LINK | |||
MP | 12 V | 7 800 RPM | 0.2 kg*cm | 0.2 A | 2.1 A | LINK | ||
LP | 12V | 5 600 RPM | 0.15 kg*cm | 0.1 A | 1.1 A | LINK | ||
6 V | 6 200 RPM | 0.15 kg*cm | 0.25 A | 2.4 A | LINK | |||
4.4:1 | HP | 12 V | 2 250 RPM | 1.7 kg*cm | 0.3 A | 5.6 A | LINK | LINK |
6 V | 2 150 RPM | 1.5 kg*cm | 0.275 A | 6.5 A | LINK | LINK | ||
MP | 12 V | 1 700 RPM | 0.8 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 1 200 RPM | 0.6 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 1 300 RPM | 0.6 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
9.7:1 | HP | 12 V | 1 030 RPM | 3.2 kg*cm | 0.3 A | 5.6 A | LINK | LINK |
6 V | 990 RPM | 2.8 kg*cm | 0.275 A | 6.5 A | LINK | LINK | ||
MP | 12 V | 1 030 RPM | 1.6 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 560 RPM | 1 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 590 RPM | 1.2 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
20.4:1 | HP | 12 V | 500 RPM | 6 kg*cm | 0.3 A | 5.6 A | LINK | LINK |
6 V | 460 RPM | 5.5 kg*cm | 0.275 A | 6.5 A | LINK | LINK | ||
MP | 12 V | 370 RPM | 3 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 260 RPM | 2 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 290 RPM | 2.4 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
34:1 | HP | 12 V | 290 RPM | 8.5 kg*cm | 0.3 A | 5.6 A | LINK | LINK |
6 V | 280 RPM | 6.5 kg*cm | 0.275 A | 6.5 A | LINK | LINK | ||
MP | 12 V | 220 RPM | 4.5 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 150 RPM | 3 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 170 RPM | 3.5 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
47:1 | HP | 12 V | 210 RPM | 12 kg*cm | 0.3 A | 5.6 A | LINK | LINK |
6 V | 200 RPM | 8.5 kg*cm | 0.275 A | 6.5 A | LINK | LINK | ||
MP | 12 V | 160 RPM | 6 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 110 RPM | 4.3 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 120 RPM | 4.7 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
75:1 | HP | 12 V | 130 RPM | 17 kg*cm | 0.3 A | 5.6 A | LINK | LINK |
6 V | 130 RPM | 11 kg*cm | 0.275 A | 6.5 A | LINK | LINK | ||
MP | 12 V | 100 RPM | 9 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 71 RPM | 6 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 78 RPM | 6.8 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
99:1 | HP | 12 V | 100 RPM | 21 kg*cm | 0.3 A | 5.6 A | LINK | LINK |
6 V | 97 RPM | 15 kg*cm | 0.275 A | 6.5 A | LINK | LINK | ||
MP | 12 V | 76 RPM | 12 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 55 RPM | 8 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 58 RPM | 9.4 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
172:1 | HP | 6 V | 56 RPM | 25 kg*cm | 0.275 A | 6.5 A | LINK | LINK |
MP | 12 V | 43 RPM | 18 kg*cm | 0.2 A | 2.1 A | LINK | LINK | |
LP | 12 V | 31 RPM | 13 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 34 RPM | 14.5 kg*cm | 0.25 A | 2.4 A | LINK | LINK | ||
227:1 | MP | 12 V | 33 RPM | 23 kg*cm | 0.2 A | 2.1 A | LINK | LINK |
LP | 12 V | 23 RPM | 17 kg*cm | 0.1 A | 1.1 A | LINK | LINK | |
6 V | 25 RPM | 16 kg*cm | 0.25 A | 1.5 A | LINK | LINK | ||
378:1 | LP | 12 V | 14 RPM | 23 kg*cm | 0.1 A | 1.6 A | LINK | LINK |
6 V | 15 RPM | 22 kg*cm | 0.25 A | 1.1 A | LINK | LINK | ||
499:1 | LP | 6 V | 11 RPM | 30 kg*cm | 0.25 A | 2.4 A | LINK | LINK |
Data sheet
- DC motor power
- MP
- Gear material
- Metal
- Gear ratio
- 34:1
- Rotation speed
- 220RPM
- Shaft diameter
- 4 mm
- Shaft shape
- D
- Obustronny wał silnika
- Nie
- Power supply voltage
- 12V
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Other products in the same category (16)
Motor with 25 mm diameter and 48 mm length, 4,4:1 metal gear, 12 V operating voltage, 0,02 A to 1,1 A power consumption, 1200 RPM speed and 0,6 maximum torque. Pololu 3249
zł126.01 6 weeks No product available!
Motor with 25 mm diameter and 50 mm length, 20,4:1 metal gear, 6 V operating voltage, 0,55 A to 6,5 A power consumption, 460 RPM speed and 5,5 maximum torque. Pololu 1572
zł119.70 6 weeks No product available!
Motor with 25 mm diameter and 67 mm length, 34:1 metal gear, 6 V operating voltage, 0,55 A to 6,5 A power consumption, 280 RPM speed, 6,5 maximum torque and 48 CPR encoder. Pololu 4804
zł282.20 24hAvailable quantity: 2 AvailableMotor with a diameter of 25 mm and a length of 71 mm, with a metal gearbox of 75:1, operating voltage of 6 V, current consumption from 0.13 A to 3 A, speed 100 RPM, maximum torque 6.5 kg*cm and magnetic encoder. DFRobot FIT0522
zł96.62 24hAvailable quantity: 1 AvailableMotor with 25 mm diameter and 63 mm length, 4,4:1 metal gear, 6 V operating voltage, 0,55 A to 6,5 A power consumption, 2150 RPM speed, 1,5 maximum torque and 48 CPR encoder. Pololu 4801
zł237.64 6 weeks No product available!
Motor with 25 mm diameter and 46 mm length, 12 V operating voltage, 0,02 A to 1,1 A power consumption, 5600 RPM speed, 0,15 maximum torque and 48 CPR encoder. Pololu 4880
zł138.23 6 weeks No product available!
Motor with 25 mm diameter and 65 mm length, 20,4:1 metal gear, 6 V operating voltage, 0,25 A to 2,4 A power consumption, 290 RPM speed, 2,4 maximum torque and 48 CPR encoder. Pololu 4823
zł223.02 24hAvailable quantity: 2 AvailableMotor with 25 mm diameter and 54 mm length, 99:1 metal gear, 12 V operating voltage, 0,3 A to 5,6 A power consumption, 100 RPM speed and 21 maximum torque. Pololu 3207
zł140.45 6 weeks No product available!
Motor with 25 mm diameter and 46 mm length, 12 V operating voltage, 0,15 A to 5,6 A power consumption, 10200 RPM speed, 0,4 maximum torque and 48 CPR encoder. Pololu 4840
zł152.90 6 weeks No product available!
Motor with 25 mm diameter and 54 mm length, 75:1 metal gear, 12 V operating voltage, 0,1 A to 1,1 A power consumption, 71 RPM speed and 6 maximum torque. Pololu 3254
zł126.01 6 weeks No product available!
Motor with 25 mm diameter and 58 mm length, 499:1 metal gear, 6 V operating voltage, 0,25 A to 2,4 A power consumption, 11 RPM speed and 30 maximum torque. Pololu 1591
zł130.97 24hAvailable quantity: 1 AvailableMotor with 25 mm diameter and 69 mm length, 75:1 metal gear, 12 V operating voltage, 0,1 A to 1,1 A power consumption, 71 RPM speed, 6 maximum torque and 48 CPR encoder. Pololu 4886
zł223.02 6 weeks No product available!
Motor with 25 mm diameter and 71 mm length, 172:1 metal gear, 6 V operating voltage, 0,55 A to 6,5 A power consumption, 56 RPM speed, 25 maximum torque and 48 CPR encoder. Pololu 4808
zł237.64 6 weeks No product available!
Motor with 25 mm diameter and 52 mm length, 34:1 metal gear, 6 V operating voltage, 0,55 A to 6,5 A power consumption, 280 RPM speed and 6,5 maximum torque. Pololu 1573
zł128.54 6 weeks No product available!
Motor with 25 mm diameter and 67 mm length, 47:1 metal gear, 12 V operating voltage, 0,2 A to 2,1 A power consumption, 160 RPM speed, 6 maximum torque and 48 CPR encoder. Pololu 4865
zł239.35 6 weeks No product available!
Motor with 25 mm diameter and 71 mm length, 172:1 metal gear, 12 V operating voltage, 0,2 A to 2,1 A power consumption, 43 RPM speed, 18 maximum torque and 48 CPR encoder. Pololu 4868
zł223.02 6 weeks No product available!