- Out-of-Stock
Products
Categories
- 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
- 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 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
Motor with 48 CPR Encoder for 25D mm Metal Gearmotors (No Gearbox)
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
Motor with 48 CPR Encoder for 25D mm Metal Gearmotors (No Gearbox)
This is the motor and encoder portion of the low-power (non-HP) versions of our 25D mm metal gearmotors with 48 CPR encoders. It does not include a gearbox, but the pinion gear on the output shaft works with all of our 25D mm gearmotor gearboxes, so this can be used as a replacement motor or encoder for those gearboxes. It is intended for use at 6 V, though it should operate comfortably in the 3 V to 9 V range.
Key specs at 6 V: 5600 RPM and 80 mA free-run, 1 oz-in (0.07 kg-cm) and 2.2 A stall.
Overview
This motor with integrated 48 CPR (counts per revolution) quadrature encoder is intended as a replacement low-power (non-HP) motor and encoder for our 25D mm metal gearmotors. The output shaft has a non-removable pinion gear that works with all of our 25D mm gearmotor gearboxes. Note that we do not sell the 25D mm gearboxes separately, but if you have a gearmotor with a damaged motor or encoder (or if you want to effectively add an encoder to a version without an encoder), you can transfer the gearbox to this replacement motor.
The motor has a diameter of 24.2 mm (0.95 in) and a length of approximately 43 mm (1.7 in) from the top of the motor can to the bottom of the encoder. The top of the motor has two mounting holes threaded for M3 screws. These mounting holes are 17 mm apart and form a line with the motor shaft at the center. The mounting holes have a depth of approximately 6.5 mm.
A higher-power motor with encoder with identical dimensions and an identical pinion gear is also available.
Pinion Gear Specs
- Metric with module m = 0.4
- Number of teeth: 12
- Face thickness: 2.5 mm
- Pressure angle: 20°
- Gear position: 4.5 mm from top of motor to top of gear
Gearmotor Options
You will typically want to combine this motor with a gearbox to give it a more appropriate combination of torque and speed (without a gearbox, it offers very high speed with very low torque). Our 25D mm line of metal gearmotors consist of this non-HP motor or an HP motor combined with different gearboxes. We do not carry the gearboxes by themselves, so unless you are looking at this as a replacement motor for a compatible gearbox you already have, we strongly recommend you consider getting a preassembled gearmotor with the gear ratio that best suits your project requirements.
Gear Ratio | No-Load Speed @ 6 V | Stall Torque @ 6 V | Stall Current @ 6 V | With Encoder | Without Encoder |
---|---|---|---|---|---|
1:1 | 9800 RPM | 2 oz-in | 6 A | motor without gearbox | |
5600 RPM | 1 oz-in | 2.2 A | motor without gearbox | ||
4.4:1 | 2220 RPM | 8 oz-in | 6 A | 25Dx48L mm HP | |
1280 RPM | 5 oz-in | 2.2 A | 25Dx48L mm | ||
9.7:1 | 1010 RPM | 17 oz-in | 6 A | 25Dx48L mm HP | 25Dx48L mm HP |
580 RPM | 11 oz-in | 2.2 A | 25Dx48L mm | 25Dx48L mm | |
20.4:1 | 480 RPM | 36 oz-in | 6 A | 25Dx50L mm HP | |
275 RPM | 24 oz-in | 2.2 A | 25Dx50L mm | ||
34:1 | 285 RPM | 60 oz-in | 6 A | 25Dx52L mm HP | 25Dx52L mm HP |
165 RPM | 40 oz-in | 2.2 A | 25Dx52L mm | 25Dx52L mm | |
47:1 | 210 RPM | 80 oz-in | 6 A | 25Dx52L mm HP | 25Dx52L mm HP |
120 RPM | 50 oz-in | 2.2 A | 25Dx52L mm | 25Dx52L mm | |
75:1 | 130 RPM | 130 oz-in | 6 A | 25Dx54L mm HP | 25Dx54L mm HP |
75 RPM | 85 oz-in | 2.2 A | 25Dx54L mm | 25Dx54L mm | |
99:1 | 100 RPM | 160 oz-in | 6 A | 25Dx54L mm HP | |
57 RPM | 110 oz-in | 2.2 A | 25Dx54L mm | ||
172:1 | 57 RPM | 260 oz-in | 6 A | 25Dx56L mm HP | |
33 RPM | 170 oz-in | 2.2 A | 25Dx56L mm | 25Dx56L mm | |
227:1 | 25 RPM | 220 oz-in | 2.2 A | 25Dx56L mm | |
378:1 | 15 RPM | 250 oz-in | 2.2 A | 25Dx58L mm | |
499:1 | 12 RPM | 300 oz-in | 2.2 A | 25Dx58L mm |
Note: At some of the higher gear ratios, these motors can generate enough torque to damage themselves. Any torque greater than about 250 oz-in (18 kg-cm) is likely to damage the gearbox, so we recommend that you avoid stalling the 172:1 HP, 227:1, 378:1, and 499:1 versions of these motors at 6 V.
These motors are intended for use at 6 V. In general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 – 9 V range, though they can begin rotating at voltages as low as 1 V. Higher voltages could start negatively affecting the life of the motor.
25D mm metal gearmotor with 48 CPR encoder: close-up view of encoder. |
---|
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, 11" (28 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:
Color | Function |
---|---|
Red | motor power (connects to one motor terminal) |
Black | motor power (connects to the other motor terminal) |
Green | encoder GND |
Blue | encoder Vcc (3.5 – 20 V) |
Yellow | encoder A output |
White | encoder B output |
The Hall sensor requires an input voltage, Vcc, between 3.5 and 20 V and draws a maximum of 10 mA. The A and B outputs are square waves from 0 V to Vcc approximately 90° out of phase. The frequency of the transitions tells you the speed of the motor, and the order of the transitions tells you the direction. The following oscilloscope capture shows the A and B (yellow and white) encoder outputs using a motor voltage of 6 V and a Hall sensor Vcc of 5 V:
Encoder A and B outputs for 25D mm (non-HP) metal gearmotor with 48 CPR encoder (motor running at 6 V). |
---|
By counting both the rising and falling edges of both the A and B outputs, it is possible to get 48 counts per revolution of the motor shaft. Using just a single edge of one channel results in 12 counts per revolution of the motor shaft, so the frequency of the A output in the above oscilloscope capture is 12 times the motor rotation frequency.
Selecting the Right Gearmotor
We offer a wide selection of metal gearmotors that offer different combinations of speed and torque. Our metal gearmotor comparison table can help you find the motor that best meets your project’s requirements.
Some of the Pololu metal gearmotors. |
---|
Other products in the same category (16)
The Serial Port module is specifically designed for Banana Pi with the module use Maxim MAX232 chip and DB9 port
No product available!
Digital signal generator with two output channels. It supports waveform types such as sine wave, rectangular signal, triangular signal, sawtooth signal, ECG and random noise. Fnirsi DDS
No product available!
Low-power, 12 V brushed DC motor combined with a 9.68:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 464.64 counts per revolution of the gearbox’s output shaft. Pololu 3262
No product available!
No product available!
Rectangular LED diode 5x2 mm YELLOW milk diffused, angle 160 degrees; light intensity 60 mcd (20mA) (2.1V); df 588nm
No product available!
The Fire Truck is a self-propelled wooden model from the new UGEARS Trucks collection. Intelligent design mixed with smart engineering inside. The Fire Truck functions like a real Rescue& Fire Truck with turning foot, moving apart & ascending ladder, which transforms into real crane with hook. UGears 70022
No product available!
No product available!
PROCESSOR CONTROLLED IRULATOR CONTROLLED LIGHT CONTROLLER - PLATEBOARD AND CONTROLLED LAYOUT
No product available!
No product available!
No product available!
SUPER LUMINAIRE MODULAR ILLUMINATOR 9XLED WHITE COLD 20mA - SELF-ASSEMBLY KIT
No product available!
Audio cable with 3.5 mm 3-pin minijack 2 m length. GEMBIRD CCA-423-2M
No product available!
No product available!
Edition about ARM microcontrollers
No product available!
A LiDAR camera with a small size and a resolution of 2 MP equipped with an IMU unit. It enables very accurate depth detection. Range up to 9 meters. Intel RealSense LiDAR Camera L515
No product available!
No product available!