Series NDK Series NDKO Series NK Aluminum Worm Gear Reducer
Series NDK/NK/NDKO Aluminum Worm Gear Reducer Dimensions
| NDK | NK | NDKO |
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| SIZE | KW | RATIO | A | AB | AC | B | BB | BC | BD | BE | CC | E1 | E2 | F | G | H | LL | M | N | NC | NZ | Z |
| 40 | 0.18 | 1/5 1/10 1/15 1/20 1/25 1/30 1/40 1/50 1/60 1/80 | 50 | 70 | 100 | 83 | 78 | 67 | 71 | 60 | 40 | 35 | 55 | 70 | 6.5 | 121.5 | 50 | 60 | 75 | 36.5 | M6×8 | 6.5 |
| 0.37 | ||||||||||||||||||||||
| 50 | 0.37 | 60 | 80 | 120 | 104 | 92 | 90 | 85 | 70 | 50 | 40 | 64 | 80 | 7 | 144 | 60 | 70 | 85 | 43.5 | M8×10 | 8.5 | |
| 0.75 | ||||||||||||||||||||||
| 63 | 0.55 | 72 | 95 | 144 | 130 | 112 | 82 | 103 | 85 | 63 | 50 | 80 | 100 | 8 | 174 | 72 | 80 | 95 | 53 | M8×14 | 8.5 | |
| 1.10 | ||||||||||||||||||||||
| 75 | 0.75 | 86 | 112.5 | 172 | 155 | 120 | 111 | 112 | 90 | 75 | 60 | 93 | 120 | 10 | 205 | 86 | 95 | 115 | 57 | M8×14 | 11 | |
| 1.50 | ||||||||||||||||||||||
| 90 | 1.10 | 103 | 129.5 | 206 | 175 | 140 | 111 | 130 | 100 | 90 | 70 | 102 | 140 | 11 | 238 | 103 | 110 | 130 | 67 | M10×8 | 13 | |
| 3.00 |
| SIZE | KW | Input Shaft | Input Flange Input Hole | Output Flange and Output Hole | ||||||||||||||||
| HS | d | L×P | LA | LB | LC | LE | LZ | U | T×V | KA | KB | KC | KD | KE | KG | KZ | S | W×Y | ||
| 40 | 0.18 | 23 | 11 | 4×2.5 | 115 | 95 | 140 | 4 | 9 | 11 | 4×12.8 | 87 | 60 | 110 | 95 | 4 | 7 | 9 | 18 | 6×20.8 |
| 0.37 | 130 | 110 | 160 | 4.5 | 14 | 5×16.3 | ||||||||||||||
| 50 | 0.37 | 30 | 14 | 5×13 | 130 | 110 | 160 | 4.5 | 9 | 14 | 5×16.3 | 90 | 70 | 125 | 110 | 5 | 9 | 11 | 25 | 8×28.3 |
| 0.55 | 165 | 130 | 200 | 11 | 9 | 6×21.8 | ||||||||||||||
| 63 | 0.55 | 40 | 19 | 6×3.5 | 165 | 130 | 200 | 4.5 | 11 | 19 | 6×21.8 | 150 | 115 | 180 | 142 | 6 | 10 | 11 | 25 | 8×28.3 |
| 1.10 | 24 | 8×27.3 | ||||||||||||||||||
| 75 | 0.75 | 50 | 24 | 8×4 | 165 | 130 | 200 | 4.5 | 11 | 19 | 6×21.8 | 165 | 130 | 200 | 170 | 6 | 13 | 14 | 28 | 8×31.3 |
| 1.50 | 24 | 8×27.3 | ||||||||||||||||||
| 90 | 1.10 | 50 | 24 | 8×4 | 165 | 130 | 200 | 4.5 | 11 | 24 | 8×27.3 | 175 | 152 | 210 | 200 | 6 | 13 | 14 | 35 | 10×38.3 |
| 3.00 | 215 | 180 | 250 | 5 | 13 | 28 | 8×31.3 | |||||||||||||
The Series NDK/NK/NDKO Aluminum Worm Gear Reducer is a high-performance gear reducer designed for various industrial applications. With its superior design and advanced features, this gear reducer offers exceptional performance and reliability.
Aluminum Worm Gear Reducer Features
- The Series NDK, NDKO, and NK Aluminum Worm Gear Reducers offer a lightweight and compact design, making them ideal for applications with space and weight limitations.
- High-strength aluminum alloy housing provides durability and corrosion resistance, ensuring a long service life.
- The worm shaft is made of high-quality hardened steel, providing excellent wear resistance and long-term performance.
- The reducers offer a wide range of ratios, allowing for precise speed control to meet the requirements of various applications.
- Low noise and smooth operation are achieved through precision machining and high-quality bearings.
- The reducers are easy to install, maintain, and repair, ensuring minimal downtime and reduced maintenance costs.
- The compact design allows for a flexible range of mounting positions, making them suitable for use in a variety of industrial applications.

Applications of Aluminum Worm Reducer
The Series NDK, NDKO, and NK Aluminum Worm Gear Reducers are widely used in various industries due to their versatile applications and reliable performance. Here are some specific areas where these gearboxes find extensive use:
- Material Handling: The aluminum worm reducers are commonly employed in material handling systems such as conveyor belts, lifting equipment, and automated packaging machines. These gearboxes provide smooth and precise control over the movement of goods, ensuring efficient and safe operation.
- Industrial Automation: With their compact design and high torque capacity, the Series NDK, NDKO, and NK gear reducers play a crucial role in industrial automation processes. They are utilized in robotic arms, assembly lines, and precision machinery, allowing for precise motion control and synchronization.
- Food and Beverage Industry: The gearboxes' corrosion-resistant aluminum construction makes them ideal for applications in the food and beverage industry. They are commonly found in mixers, conveyors, and processing equipment, ensuring hygienic and smooth operation even in demanding environments.
- Renewable Energy: The aluminum worm reducers are also utilized in the renewable energy sector, particularly in wind turbines and solar power systems. These gearboxes efficiently convert the low-speed input from the turbines or solar trackers into higher rotational speeds required for power generation.
- Packaging Machinery: In packaging machinery, the Series NDK, NDKO, and NK gear reducers are widely employed to control the movement of packaging materials, such as film, boxes, and bottles. Their precise and reliable performance ensures accurate positioning and efficient packaging processes.

Worm Reducer Common Problems and Solutions
Series NDK, Series NDKO, and Series NK Aluminum Worm Gear Reducers are widely used in various industries. However, during their usage, some common problems may arise. Below are some of the problems and their solutions:
- Overheating: Overheating of the gearbox may occur due to several reasons like overloading, improper lubrication, high ambient temperature, etc. The solution to this problem is to check the oil level and refill if necessary, use the correct lubricant, reduce the load, and ensure proper ventilation.
- Noise: Excessive noise from the gearbox may be due to worn gears, loose mounting bolts, and improper meshing of gears. The solution is to replace the worn gears, tighten the mounting bolts, and adjust the gear meshing.
- Leakage: Gearbox leakage may occur due to damaged seals, overfilled oil, or improper assembly. To fix this, replace the damaged seals, drain the excess oil, and ensure proper assembly.
- Vibration: Vibration may occur due to misalignment, improper mounting, or damaged bearings. The solution is to align the gearbox correctly, mount it properly, and replace the damaged bearings.
To ensure the smooth functioning of the worm gearbox, regular maintenance and inspection are necessary. By following the above solutions to common problems, the gearbox can be kept in good condition and perform efficiently.

How to Choose the Right Worm Gear Reducer?
Choosing the right worm gear reducer from the Series NDK, Series NDKO, and Series NK Aluminum Worm Gear Reducer requires careful consideration. Here are the steps to guide you:
Step 1: Determine the required torque and speed ratio for your application. This will help you choose the appropriate gear reducer that can handle the load and provide the desired output speed.
Step 2: Consider the efficiency and backlash of the gear reducer. Higher efficiency ensures better power transmission, while minimal backlash reduces positioning errors.
Step 3: Evaluate the input and output shaft configurations and sizes. Ensure compatibility with your existing equipment and verify that the gear reducer can provide the necessary torque and speed for your application.
Step 4: Take into account the environmental conditions, such as temperature, humidity, and dust. Choose a gear reducer that is suitable for the specific operating environment to ensure long-term reliability.
Step 5: Consider the overall dimensions and mounting options of the gear reducer. Ensure that it can be easily integrated into your system and meets any space limitations.
By following these steps, you can select the appropriate Series NDK, Series NDKO, or Series NK Aluminum Worm Gear Reducer that meets your specific requirements.

Motors for Worm Reducers
Worm gear reducers are a popular choice for power transmission systems in various industries. They offer high efficiency, low noise, and can handle high shock loads, making them suitable for many applications. However, selecting the right motor to pair with a worm gear reducer is critical to ensure optimal performance and reliability.
The Series NDK, Series NDKO, and Series NK Aluminum Worm Gear Reducers are no exception. These reducers require a motor that can operate at a low speed and handle high torque. The motor should also have a high starting torque to overcome the initial resistance of the gearbox. This requirement is crucial because the worm gear reducer has a high gear ratio, which results in a low output speed and high output torque.
The relationship between the motor and the worm gear reducer is important because the motor provides the power to drive the reducer, and the reducer then reduces the speed and increases the torque. The combination of these two components provides the required speed and torque to drive the application.
At our company, we understand the importance of selecting the right motor for your worm gear reducer. That is why we offer a wide range of motors that are compatible with the Series NDK, Series NDKO, and Series NK Aluminum Worm Gear Reducers. Our motors are designed to work seamlessly with our reducers, ensuring optimal performance and reliability.
Take a look at our range of motors in the image below:

About Ever-power
Ever-power is a leading manufacturer of worm gearboxes with a focus on precision manufacturing and testing equipment. We are proud of our professional capabilities and expertise in this field. Our company has a strong commitment to providing our customers with the highest quality products and services.
As a manufacturer, we have state-of-the-art production facilities and quality control systems to ensure the highest level of performance and reliability for our products. Our Series NDK, Series NDKO, and Series NK Aluminum Worm Gear Reducers are known for their exceptional quality and durability.
Our products are designed to meet the specific needs of our customers, and we strive to exceed their expectations in every way. We take pride in our ability to manufacture high-quality products that are reliable, efficient, and cost-effective.
Our team of experienced engineers and technicians is dedicated to delivering the best possible products and services to our customers. We believe in building long-term relationships with our customers, and we work closely with them to understand their needs and requirements.
At Ever-power, we are committed to providing our customers with the best possible products and services. We invite you to experience the Ever-power difference for yourself and discover why we are a leading manufacturer of worm gearboxes.

Exceptional Durability and Efficiency
With the NDK series of aluminum worm gear reducers, you can expect exceptional durability and efficiency. The aluminum construction ensures lightweight yet sturdy performance, making it ideal for applications that require both strength and agility. The worm gear design allows for smooth and precise motion control, minimizing energy loss and maximizing overall efficiency.
Precision Engineering for Optimal Performance
The NDK series features precision engineering that guarantees optimal performance. The use of high-quality materials and advanced manufacturing techniques ensures the gear reducer's longevity and reliability. Its compact design and precise gear meshing ensure smooth and accurate operation, even in demanding conditions.
Versatile Applications
Designed for versatility, the NDK series aluminum worm gear reducer is suitable for a wide range of applications. Whether it's in automation systems, conveyor belts, or other industrial machinery, this gear reducer can handle various loads and deliver consistent performance. Its flexible mounting options and customizable configurations make it adaptable to different setups and requirements.
Enhanced Protection and Safety
The NDK series prioritizes protection and safety. Its advanced sealing system prevents contamination and ensures efficient lubrication, prolonging the gear reducer's lifespan. Additionally, built-in safety features such as overload protection and thermal protection safeguard the system from potential damage, providing peace of mind and reliability in operation.
Ease of Installation and Maintenance
Installing and maintaining the NDK series is a breeze. Its compact and lightweight design simplifies the installation process, while its modular construction allows for easy disassembly and reassembly. With accessible service points and user-friendly maintenance procedures, the gear reducer minimizes downtime and optimizes productivity.
In conclusion, the Series NDK Aluminum Worm Gear Reducer offers exceptional durability, precision performance, and versatility for various industrial applications. Its advanced features, combined with ease of installation and maintenance, make it a reliable choice for optimizing motion control and enhancing overall operational efficiency.

Additional information
| Editor | Zqq |
|---|
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port









