28mm 28BYJ48 Unipolar 4 phases 64:1 ratio geared reducer stepping
motor
This is a 28mm diameter permanent magnet stepper motor with 64:1
gear ratio gearbox.
This is an uni-polar motor with 4 phases, 5 wires.
The red cable is common line in the middle of each phase.
With low price and reliable quality, this motor is widely used in
home appliance industries, such as air conditioning, smart home
system, smart toilet and so on.
We provide customization service on gear ratio, coil resistance,
phase number, and connector types.
Customers can customize motor’s parameter based on specific
requirement, we have 16:1 to 85:1 gear ratio for option.
Parameter:
| Model No. | 28BYJ48 |
| Motor diameter | 28mm |
| Phase No. | 4 phases(Unipolar) |
| Driving method | 1-2 phase driving (half step driving) |
| Step Angle | 5.625°/64 |
| Coil resistance | 100Ω/phase |
| Rated voltage | 12V DC |
| Max starting frequency(12V) | >600 PPS |
Customization options:
Model No.: 28BYJ48
Step angle:(1-2phase driving) 5.625°/64; (2-2 phase driving)
11.25°/step
Gear ratio: 16:1 / 25:1 / 32:1 / 48.8:1 / 64:1 / 85:1
Customizable items:
Voltage:5~24V; gear ratio, gear material, output shaft, motor’s cap
design customizable
Voltage (V) | Resistance (Ω) | Pull-in torque 100PPS (mN*m) | Detent Torque (mN*m) | Unload pull-in Frequency (PPS) |
| 5 | 18 | ≥98 | ≥29.4 | ≥500 |
| 12 | 60 | ≥117 | ≥29.4 | ≥500 |
| 12 | 70 | ≥68.7 | ≥29.4 | ≥500 |
| 12 | 200 | ≥68.7 | ≥29.4 | ≥500 |
| 12 | 300 | ≥58.8 | ≥29.4 | ≥500 |
Design drawing(Unit:mm)
Product display:
Technical Features
Application Highlights
HVAC/R Valve Actuation Winding possibilities – Bipolar
Office Automation Printers, Copiers, Data storage Maintenance free - motor is brushless
Medical Applications Pill dispensing Analysers Cost effective - compact design, lower integration cost
Other Industries & Applications Robotics Digitally controlled - Easy to use with a micro processor
Telecommunication Antennae positioning Switching lines Open loop
control - No encoders necessary
Typical Applications
- Saliva Analyzer
- Blood Analyzer
- Welding Machine
- Intelligent Security Products
- Fiber Fusion Splicer
- Digital Electronics
Type of Wire Connect
Motor input method with Pin type,FPC, PCB, Lead wire etc.
These can be customized according to customer needs.
Shaft Type
Out shaft standard as follows,also can customerized due to the user
drawings
welcome to contact customer service for more types
Round Type : DIA3mm. 4mm. 5mm
D-cut Type: DIA3-D2.5 DIA4-D3 etc
Screw Type: M3 M4 M5 Serial
Trape Type
I-cut Type: DIA3-I2 DIA4-I3
Other Type: Shaft with a hole etc
Type of Fixture Cover
The regular models are shown in the figure, and the special sizes
can be customized.
