• Changzhou Vic-Tech Motor Technology Co., Ltd.
    Andres Blanco
    The thruster have arrived correctly. I tested them on the ROV and we are very happy with the result. The epoxy interior finish is very good and the power of the motors in relation to the size is quite good.
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    Gregoire Lange
    The cooperation between Changzhou Vic-Tech Motor Tech and our company was just great. Good understanding of our needs, great willing to solve our problems. I recommend !
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    David Molevelt
    Professional and clear communication. Order was shipped in time. Counter connectors where added to the shipment. Driver works like we agreed !
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    Buildstorm Private Limited
    The product works as expected, it was packed nicely. Seller responds very quickly and helps in making a buying decision. They are ready to customize the product for you.
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    Ashley Griffin
    Shipment was received very quickly. Product was well protected by packaging. Company rep was cordial and kind. A Plus rating!
Contact Person : Kangtai Lee
Phone Number : +86 17715451401
Whatsapp : +8617715451401

SM25 Micro Geared Stepper Motor 2 Phase 4 Wirer Bipolar Stepping Motor

Place of Origin China
Brand Name VIC-TECH
Certification RoHS
Model Number SM25-048S-8127G
Minimum Order Quantity 1Unit
Price $4~$8/Unit
Packaging Details The product is packed with pearl cotton, and the outside is in a carton.
Delivery Time 10~30 days after receiving sample payment
Payment Terms MoneyGram, Western Union,Credit Card,T/T, L/C
Supply Ability 100000\ Units/year

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Motor Type PM Stepper Motor With Gearbox Motor Size 25mm
Step Angle 7.5°/60 Gear Ratio 1:10 1:15 1:20 1:30 1:60 1:75 1:100 Standard
No.of Phase 4 Phase Winding Resistance 100ΩZ±10%(25℃)
Phase Resistance 10Ω±10% Rated Voltage 5V~12V
High Light

SM25 Micro Geared Stepper Motor


2 Phase Geared Stepper Motor


SM25 Bipolar Stepping Motor

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Product Description

SM25 Micro Geared Stepper Motor 2-phase 4-wirer Bipolar stepping motor

SM25 Micro Geared Stepper Motor 2 Phase 4 Wirer Bipolar Stepping Motor 0


This is a permanent magnet motor of the SM25-048S-8127G with a gearbox on top.

This single motor has a step angle of 7.5 degrees and takes 48 steps to make one revolution (without the gearbox)

In addition, we have different gear ratios for you to choose, the gear ratio of this motor is 60:1.

So the step angle is 7.5 degrees/60

If you need this motor with gearbox, please feel free to contact me.



Transmission Shaft can be made according to customer's requirement.


Home Applience Air-conditioning

Refrigerator Intelligent Sanitary

Automatic Door Lock CCTV Monitor

Electronic Instrument



Motor Parameters:

Motor type Permanent magnet motor with gearbox
Motor diameter 25mm
Voltage 5V CD
Step Angle 7.5°/60
No.of Phase 4 phase
Coil resistance 10Ω±10%(25℃)
Holding torque 4000 g*cm
Max pull-in rate 700pps
pull-in torque at 200pps 3000g.cm
Current per phase 380mA



Design drawing:

SM25 Micro Geared Stepper Motor 2 Phase 4 Wirer Bipolar Stepping Motor 1


Product display:


SM25 Micro Geared Stepper Motor 2 Phase 4 Wirer Bipolar Stepping Motor 2



Application of stepper motors:

Stepper motors are used for precision control and are widely used in medical equipment, 3D printers, industrial precision control, automation equipment, etc.

Stepper motors can be used in any mechanism that requires precise control and rotational/linear motion.

If you need a stepper motor, please feel free to contact me.



Advantage of stepper motors:

Stepper motor can reach precise control even without close-loop encoders / without feed back system, also they do not have electrical brushed. Thus there is no electromagnetic interference and electrical sparks issues. In some cases, they can replace DC brushed motors/ brushless motors.

Stepper motors are easy to control with drivers, and this feature establish its important position in the field of precise control.

1. Precise control achievable, programmable

2. Without electromagnetic interference & electrical sparks

3. Small size

4. Reasonable price

5. Low noise

6. Long service life


Stepper motors are widely used among all industries.