Small Geared Electric Motors
What is a Small Geared Electric Motors?
Small Geared Electric Motors-also known as compact gear-reduction motors-are integrated electromechanical power units combining a drive motor with a precision gear transmission mechanism. They serve as the most widely used standard transmission components in micro-automation and precision intelligent equipment. Unlike standard high-speed motors, these units utilize a multi-stage gear transmission system to precisely convert the motor's raw output-characterized by high speed and low torque-into mechanical power featuring low speed, high torque, smooth operation, and high precision. This effectively resolves common industry issues such as insufficient power, unstable speeds, vibration and slippage, and harsh shocks during start-stop cycles in small-scale equipment.
- Precision Rigid Gear Transmission (Zero Slip/Lag): Utilizes a multi-stage alloy gear meshing system for rigid power transmission, achieving an efficiency of over 95%. It eliminates issues such as belt stretching, idle slipping, and speed loss; the minimal speed deviation during long-term operation ensures stable transmission precision for precision equipment.
- Compact Size, High Torque, Powerful Drive: Features a miniature, compact design that leverages gear-based speed reduction and torque multiplication technology to deliver massive torque from a tiny footprint. It effortlessly handles heavy-load startups and steady-speed operation for small-scale equipment, effectively overcoming the common issue of weak power output in miniature devices.
- Pure Copper Winding Drive (Energy-Efficient, Durable, and Burnout-Resistant): Coils are wound using 100% new pure copper enameled wire, offering high conductivity, low internal resistance loss, and uniform heat dissipation. Paired with Class F high-temperature insulation materials capable of withstanding 155°C, the motor supports continuous full-load operation while resisting aging and dielectric breakdown, resulting in an exceptionally low failure rate.
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Model |
AH18~50 / AV18~50 |
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Power |
0.1KW~3.7KW |
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Rated speed |
1400rpm |
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Ratio |
3~200:1 |
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Output speed |
500~7rpm |
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Voltage |
110V, 220V, 230V, 380V |
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Frequency |
50HZ/60HZ |
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Output shaft diameter |
Φ18, Φ22, Φ28, Φ32, Φ40, Φ50 |
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Cooling |
IC411 fan cooling |
For example
AH HORIZONTAL TYPE
Normal duty AH-18-100 ratio 3~60
Light duty AH-18-100 ratio 70~200
Normal duty AH-22-100 ratio 60~200
AV VERTICAL TYPE
Normal Duty AV18-100 ratio 3~60
Light load miniature frame AV-18-100 ratio 70~200
Normal Duty AV-22-100 ratio 60~200
Q1: What is the difference between a small gear-drive motor and a standard motor?
A1: The key differences lie in the transmission structure and output performance. Standard motors feature direct, high-speed output but offer low torque, are prone to slippage, and cannot maintain stable rotation at low speeds. In contrast, small gear-drive motors utilize rigid gear reduction to deliver high torque at low speeds; the transmission is free from slippage and rotational loss, offering higher precision and greater operational stability. Specifically designed for small-scale precision equipment, they serve as an upgraded alternative to standard high-speed motors.
Q2: Why do gear-driven motors deliver higher torque and greater power?
A2: By leveraging the physical principle of trading speed for torque-specifically through the configuration of multi-stage gear ratios-these motors reduce output speed while exponentially amplifying output torque. At the same power level, the gear-driven mechanism efficiently converts power into driving torque; compared to standard direct-drive motors, this results in a multi-fold increase in load capacity, enabling small equipment to easily handle heavy-load startups.
Q3: Do small geared motors offer high transmission accuracy? Do they slip?
A3: Utilizing rigid gear meshing, they eliminate the elastic deformation issues associated with belts or chains and maintain a stable transmission efficiency of over 95%. They ensure no loss of rotational speed or transmission deviation during long-term operation, making them the preferred transmission mechanism for precision machinery and positioning equipment.
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