China Best Sales 25W-250W Micro AC Gear Motor Reversible/Induction Electric Motor Reducer for Printing Machine a/c vacuum pump

Product Description




Model Selection

GPG Motor, A China leading & CHINAMFG manufacturer of various gear motor for your needs. We are specialized in Induction Motor, Reversible Motor, DC Brush Gear Motor, DC Brushless Gear Motor, CH/CV Big Gear Motors, Planetary Gear Motor ,Worm Gear Motor etc, which are widely used in various fields of manufacturing pipelining, transportation, food, medicine, printing, fabric, packing, office, apparatus, entertainment etc and are the preferred and matched product for automatic machine. 

• Model Selection
Our professional sales representive and technical team will choose the right model and transmission solutions for your usage depend on your specific parameters.

• Drawing Request
If you need more product parameters, catalogues, CAD or 3D drawings, please contact us.

• On Your Need
We can modify standard products or customize them to meet your specific needs.



Product Parameters


AC Gear Motor
4 RK 25 R C C F G10
Outer Diameter Motor Type Power Capacity Speed Motor Votage Output Shaft Shape Accessories Derived Code
2 – 60mm
3 – 70mm
4 – 80mm
5 – 90mm
6 – 100mm
IK – Induction
RK – Reversible
TK – Torque
6 – 6W
15 – 15W
40 – 40W
60 – 60W
90 – 90W
120 – 120W
140 – 140W
180 – 180W
200 – 200W
250 – 250W
R   A -1 Phase 110V
C – 1 Phase 220V
C2 – 1 Phase 110V/220V
S – 3 Phase 220V
S2 – 3 Phase 220V/380V
S3 – 3 Phase 380V
S4 – 3 Phase 440V
SS3 – 3 Phase 220V/380V
A – Round Shaft
C – Toothed Shaft 
T/P – Thermally Protected
F – Fan
M – Electro-manetic
Z – Damping
Shaft Length

AC Gearhead
4 GN 60 K G12 T
Outer Diameter Motor Shaft Shape Gear Ratio Bearing Model Output Shaft Diameter Installation Method
2 – 60mm
3 – 70mm
4 – 80mm
5 – 90mm
6 – 104mm
GN – Bevel Gear Shaft
GU – Bevel Gear Shaft
GS – Strengthen T-shaped installation
GZ – Right-angle gearbox
GM – Intermediate gearbox
60 – 1:60 K – Standard Rolling Bearings
RT – Right Angle
RC – Right Angle Hollow
G12 –  Ф12mm L – Screw Hole
T – Through Hole

Specifications of Motor
Motor Type Motor Model No. Description Rating Start Condenser Gear Model No.
Output Shaft
Pinion Cut
Output Shaft
Force Peripheral Wave No. Valtage Current Start Turning Moment Turning Moment Revolving No. Capacity Resistance Voltage Pairing Bearing Middle Gear
( W ) ( Hz ) ( V ) ( A ) ( gcm ) ( gcm ) ( rpm ) ( uF ) ( V )
4RK25A-A 4RK25GN-A 25 50 110 0.60 1950 1950 1250 8 250 4GN-K 4GN10X
60 110 0.55 1650 1620 1500 7
4RK25A-C 4RK25GN-C 50 220 0.30 1950 1950 1250 2 500 4GN-K 4GN10X
60 220 0.27 1650 1620 1500 1.8
4RK30A-A 4RK30GN-A 30 50 110 0.70 2400 2350 1250 10 250 4GN-K 4GN10X
60 110 0.65 1950 1950 1500 8
4RK30A-C 4RK30GN-C 50 220 0.35 2400 2350 1250 2.5 500 4GN-K 4GN10X
60 220 0.32 1950 1950 1500 2
4RK40A-A 4RK40GN-A 40 50 110 0.80 3250 3250 1250 16 250 4GN-K 4GN10X
60 110 0.75 3600 2600 1500 14
4RK40A-C 4RK40GN-C 50 220 0.40 3250 3250 1250 4 500 4GN-K 4GN10X
60 220 0.38 2600 2600 1500 3.5
4IK25A-A 4IK25GN-A 25 50 110 0.55 1650 1950 1250 7 250 4GN-K 4GN10X
60 110 0.50 1380 1620 1500 6
4IK25A-C 4IK25GN-C 50 220 0.28 1650 1950 1250 1.8 500 4GN-K 4GN10X
60 220 0.25 1350 1620 1500 1.5
4IK30A-A 4IK30GN-A 30 50 110 0.65 2050 2350 1250 10 250 4GN-K 4GN10X
60 110 0.60 1750 1950 1500 8
4IK30A-C 4IK30GN-C 50 220 0.33 2050 2350 1250 2.2 500 4GN-K 4GN10X
60 220 0.30 1750 1950 1500 2
External Dimension
Type Reduction Ratio L1(mm) L2(mm) L3(mm)
4IK(RK)25A(GN) 1:3 ~ 1:20 86 32 118
4IK(RK)30A(GN) 86 32 118
4IK(RK)40A(GN) 101 32 133
4IK(RK)25A(GN) 1:25 ~ 1:180 86 44 130
4IK(RK)30A(GN) 86 44 130
4IK(RK)40A(GN) 101 44 145
Gear Head-Torque Table ( 
 ( x 9.8 ÷ 100 ) = N.m
 r/min 500 300 200 150 120 100 75 60 50 30 20 15 10 7.5 6 5 3
Gear Redcution Ratio 50Hz 3 5 7.5 10 12.5 15 20 25 30 50 75 100 150 200 250 300 500
60Hz 3.6 6 9   15 18   30 36 60 90 120 180   300 360 600
Permissible Load 25W 4 6.7 10 13.3 16 20 26.7 32 39 65 80 80 80 80 80 80 80
30W 4.8 8 12 16 20 24 32 38 45 76 80 80 80 80 80 80 80
40W 6.7 11 16 21.3 28 33 42 54 65 80 80 80 80 80 80 80 80
Note: Speed figures are based on synchronous speed, the actual output speed, under rated torque conditions, is about 10~20% less than synchronous speed.
Grey background indicates: output shaft of geared motor rotates in the same direction as output shaft of motor
White background indicates: rotation in the opposite direction

Company Profile

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Application: Industrial
Operating Speed: Constant Speed
Power Source: AC Motor
Function: Control, Driving
Casing Protection: Protection Type
Number of Poles: 4
US$ 30/Piece
1 Piece(Min.Order)




gear motor

Are there innovations or emerging technologies in the field of gear motor design?

Yes, there are several innovations and emerging technologies in the field of gear motor design. These advancements aim to improve the performance, efficiency, compactness, and reliability of gear motors. Here are some notable innovations and emerging technologies in gear motor design:

1. Miniaturization and Compact Design:

Advancements in manufacturing techniques and materials have enabled the miniaturization of gear motors without compromising their performance. Gear motors with compact designs are highly sought after in applications where space is limited, such as robotics, medical devices, and consumer electronics. Innovative approaches like micro-gear motors and integrated motor-gear units are being developed to achieve smaller form factors while maintaining high torque and efficiency.

2. High-Efficiency Gearing:

New gear designs focus on improving efficiency by reducing friction and mechanical losses. Advanced gear manufacturing techniques, such as precision machining and 3D printing, allow for the creation of intricate gear tooth profiles that optimize power transmission and minimize losses. Additionally, the use of high-performance materials, coatings, and lubricants helps reduce friction and wear, improving overall gear motor efficiency.

3. Magnetic Gearing:

Magnetic gearing is an emerging technology that replaces traditional mechanical gears with magnetic fields to transmit torque. It utilizes the interaction of permanent magnets to transfer power, eliminating the need for physical gear meshing. Magnetic gearing offers advantages such as high efficiency, low noise, compactness, and maintenance-free operation. While still being developed and refined, magnetic gearing holds promise for various applications, including gear motors.

4. Integrated Electronics and Controls:

Gear motor designs are incorporating integrated electronics and controls to enhance performance and functionality. Integrated motor drives and controllers simplify system integration, reduce wiring complexity, and allow for advanced control features. These integrated solutions offer precise speed and torque control, intelligent feedback mechanisms, and connectivity options for seamless integration into automation systems and IoT (Internet of Things) platforms.

5. Smart and Condition Monitoring Capabilities:

New gear motor designs incorporate smart features and condition monitoring capabilities to enable predictive maintenance and optimize performance. Integrated sensors and monitoring systems can detect abnormal operating conditions, track performance parameters, and provide real-time feedback for proactive maintenance and troubleshooting. This helps prevent unexpected failures, extend the lifespan of gear motors, and improve overall system reliability.

6. Energy-Efficient Motor Technologies:

Gear motor design is influenced by advancements in energy-efficient motor technologies. Brushless DC (BLDC) motors and synchronous reluctance motors (SynRM) are gaining popularity due to their higher efficiency, better power density, and improved controllability compared to traditional brushed DC and induction motors. These motor technologies, when combined with optimized gear designs, contribute to overall system energy savings and performance improvements.

These are just a few examples of the innovations and emerging technologies in gear motor design. The field is continuously evolving, driven by the need for more efficient, compact, and reliable motion control solutions in various industries. Gear motor manufacturers and researchers are actively exploring new materials, manufacturing techniques, control strategies, and system integration approaches to meet the evolving demands of modern applications.

gear motor

Can gear motors be used for precise positioning, and if so, what features enable this?

Yes, gear motors can be used for precise positioning in various applications. The combination of gear mechanisms and motor control features enables gear motors to achieve accurate and repeatable positioning. Here’s a detailed explanation of the features that enable gear motors to be used for precise positioning:

1. Gear Reduction:

One of the key features of gear motors is their ability to provide gear reduction. Gear reduction refers to the process of reducing the output speed of the motor while increasing the torque. By using the appropriate gear ratio, gear motors can achieve finer control over the rotational movement, allowing for more precise positioning. The gear reduction mechanism enables the motor to rotate at a slower speed while maintaining higher torque, resulting in improved accuracy and control.

2. High Resolution Encoders:

Many gear motors are equipped with high-resolution encoders. An encoder is a device that measures the position and speed of the motor shaft. High-resolution encoders provide precise feedback on the motor’s rotational position, allowing for accurate position control. The encoder signals are used in conjunction with motor control algorithms to ensure precise positioning by monitoring and adjusting the motor’s movement in real-time. The use of high-resolution encoders greatly enhances the gear motor’s ability to achieve precise and repeatable positioning.

3. Closed-Loop Control:

Gear motors with closed-loop control systems offer enhanced positioning capabilities. Closed-loop control involves continuously comparing the actual motor position (as measured by the encoder) with the desired position and making adjustments to minimize any position error. The closed-loop control system uses feedback from the encoder to adjust the motor’s speed, direction, and torque, ensuring accurate positioning even in the presence of external disturbances or variations in the load. Closed-loop control enables gear motors to actively correct for position errors and maintain precise positioning over time.

4. Stepper Motors:

Stepper motors are a type of gear motor that provides excellent precision and control for positioning applications. Stepper motors operate by converting electrical pulses into incremental steps of movement. Each step corresponds to a specific angular displacement, allowing precise positioning control. Stepper motors offer high step resolution, allowing for fine position adjustments. They are commonly used in applications that require precise positioning, such as robotics, 3D printers, and CNC machines.

5. Servo Motors:

Servo motors are another type of gear motor that excels in precise positioning tasks. Servo motors combine a motor, a feedback device (such as an encoder), and a closed-loop control system. They offer high torque, high speed, and excellent positional accuracy. Servo motors are capable of dynamically adjusting their speed and torque to maintain the desired position accurately. They are widely used in applications that require precise and responsive positioning, such as industrial automation, robotics, and camera pan-tilt systems.

6. Motion Control Algorithms:

Advanced motion control algorithms play a crucial role in enabling gear motors to achieve precise positioning. These algorithms, implemented in motor control systems or dedicated motion controllers, optimize the motor’s behavior to ensure accurate positioning. They take into account factors such as acceleration, deceleration, velocity profiling, and jerk control to achieve smooth and precise movements. Motion control algorithms enhance the gear motor’s ability to start, stop, and position accurately, reducing position errors and overshoot.

By leveraging gear reduction, high-resolution encoders, closed-loop control, stepper motors, servo motors, and motion control algorithms, gear motors can be effectively used for precise positioning in various applications. These features enable gear motors to achieve accurate and repeatable positioning, making them suitable for tasks that require precise control and reliable positioning performance.

gear motor

In which industries are gear motors commonly used, and what are their primary applications?

Gear motors find widespread use in various industries due to their versatility, reliability, and ability to provide controlled mechanical power. They are employed in a wide range of applications that require precise power transmission and speed control. Here’s a detailed explanation of the industries where gear motors are commonly used and their primary applications:

1. Robotics and Automation:

Gear motors play a crucial role in robotics and automation industries. They are used in robotic arms, conveyor systems, automated assembly lines, and other robotic applications. Gear motors provide the required torque, speed control, and directional control necessary for the precise movements and operations of robots. They enable accurate positioning, gripping, and manipulation tasks in industrial and commercial automation settings.

2. Automotive Industry:

The automotive industry extensively utilizes gear motors in various applications. They are used in power windows, windshield wipers, HVAC systems, seat adjustment mechanisms, and many other automotive components. Gear motors provide the necessary torque and speed control for these systems, enabling smooth and efficient operation. Additionally, gear motors are also utilized in electric and hybrid vehicles for powertrain applications.

3. Manufacturing and Machinery:

Gear motors find wide application in the manufacturing and machinery sector. They are used in conveyor belts, packaging equipment, material handling systems, industrial mixers, and other machinery. Gear motors provide reliable power transmission, precise speed control, and torque amplification, ensuring efficient and synchronized operation of various manufacturing processes and machinery.

4. HVAC and Building Systems:

In heating, ventilation, and air conditioning (HVAC) systems, gear motors are commonly used in damper actuators, control valves, and fan systems. They enable precise control of airflow, temperature, and pressure, contributing to energy efficiency and comfort in buildings. Gear motors also find applications in automatic doors, blinds, and gate systems, providing reliable and controlled movement.

5. Marine and Offshore Industry:

Gear motors are extensively used in the marine and offshore industry, particularly in propulsion systems, winches, and cranes. They provide the required torque and speed control for various marine operations, including steering, anchor handling, cargo handling, and positioning equipment. Gear motors in marine applications are designed to withstand harsh environments and provide reliable performance under demanding conditions.

6. Renewable Energy Systems:

The renewable energy sector, including wind turbines and solar tracking systems, relies on gear motors for efficient power generation. Gear motors are used to adjust the rotor angle and position in wind turbines, optimizing their performance in different wind conditions. In solar tracking systems, gear motors enable the precise movement and alignment of solar panels to maximize sunlight capture and energy production.

7. Medical and Healthcare:

Gear motors have applications in the medical and healthcare industry, including in medical equipment, laboratory devices, and patient care systems. They are used in devices such as infusion pumps, ventilators, surgical robots, and diagnostic equipment. Gear motors provide precise control and smooth operation, ensuring accurate dosing, controlled movements, and reliable functionality in critical medical applications.

These are just a few examples of the industries where gear motors are commonly used. Their versatility and ability to provide controlled mechanical power make them indispensable in numerous applications requiring torque amplification, speed control, directional control, and load distribution. The reliable and efficient power transmission offered by gear motors contributes to the smooth and precise operation of machinery and systems in various industries.

China Best Sales 25W-250W Micro AC Gear Motor Reversible/Induction Electric Motor Reducer for Printing Machine   a/c vacuum pump		China Best Sales 25W-250W Micro AC Gear Motor Reversible/Induction Electric Motor Reducer for Printing Machine   a/c vacuum pump
editor by CX 2023-12-29