Product Description
Detailed Images
CHINAMFG supplies more than 1 series of Shaft Mounted Reducers to satisfy customers all over the world and applications in different industries.
Product Description
*Description of Three Types of Helical Shaft Mounted Gearbox
(1) CHINAMFG SMR Shaft Mount Reducers
Made in compliance to AGMA standard;
Available Sizes: B.C,D,E,F,G,H,J;
Available Ratios: 5,13,15,20;
Products Features
-Standard or alternative bores ailable for each size of SMR reducers;
-High precision helical gears made of 20CrMnTi, case carbonized and grounded, in compliance with ISO 1328-1997;
-98% Efficiency in each stage;
-Cast iron housing and covers durable for heavy load and torque;
-Strong Alloy Steel Shafts, case carbonized and grounded;
-Backstops are available as an option;
-Taper Bushings are available as an option.
(2) CHINAMFG SMRY Shaft Mount Reducer
Available Sizes: 2,3,4,5,6,7,8,9,10,12
Available Ratios: 15,25;
Maximum power up to 250HP;
Weight Range: 58-1786lb.
Products Features
-Standard or alternative bores ailable for each size of SMR reducers;
-High precision helical gears made of 20CrMnTi, case carbonized and grounded, in compliance with ISO 1328-1997;
-98% Efficiency in each stage;
-Cast iron housing and covers durable for heavy load and torque;
-Strong Alloy Steel Shafts, case carbonized and grounded;
-Backstops are available as an option;
-Taper Bushings are available as an option.
(3) CHINAMFG SMR B Shaft Mount Reducer
Available Sizes: 30,35,40,45,50,60,70,80,100,125
Available Ratios: 5,10,12.3,15,20.3,25,30 etc.
Maximum Output Torque: 17,000Nm.
Products Features
Our SMR units have compact structure, large bearing capacity, high transmission efficiency (single-stage gear transmission efficiency up to 98.5%), stable transmission, low noise, reliable performance, and is widely used in mining, metallurgy, construction machinery and other industries.
*Here we only publish the drawing of the biggest size of SMR B we produce. For other sizes’ dimensions, please contact us online.
Packing & Delivery
Packaging Pictures of Worm Gear Reduce and Helical Geared Motor
Inner Packing: PP bag with carton;
Outer Packing: Carton boxes and wooden cases;
Leadtime: 20-30 days CHINAMFG order confirm.
About Us
Welcome to CHINAMFG Group, China’s leading gearbox manufacturer since 1976. Our journey, spHangZhou over 4 decades, has established us as a benchmark of CHINAMFG in the power transmission industry.
We proudly made history in the 1980s by exporting the first China-made reducer and have since maintained our status as China’s top gearbox exporter.Today, we proudly export 70% of our products to more than 40 countries, including key markets like Italy, Germany, the USA, Spain, Brazil, Argentina, Turkey, and India.
Our extensive product range includes worm gear reducers, helical gearboxes, shaft-mounted reducers, helical bevel gearboxes, and slewing drives.These products are vital across various sectors, from industrial production equipment, power, and mining to metallurgy, agriculture, construction, and marine, as well as in the burgeoning clean energy sector.
Our team of experts, among the world’s best, upholds the highest standards for both standard and OEM products. Driven by innovation and cutting-edge technology, we prioritize quality and our customers’ needs. Our state-of-the-art facilities, equipped with the latest machinery and a team of seasoned professionals, ensure consistent quality and impressive daily output. We’re proud to produce 4,000 units daily, totaling over 1.2 million units annually.
We cordially invite you to visit us and witness first hand why CHINAMFG Group is the gem of China’s gearbox manufacturing. Seeing is believing, and we eagerly anticipate demonstrating our expertise and craftsmanship. Join us in driving the future forward.
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| Application: | Machinery, Marine, Agricultural Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Layout: | Parallel |
| Gear Shape: | Bevel Gear |
| Step: | Stepless |
| Customization: |
Available
| Customized Request |
|---|
Calculating Gear Ratio in a Worm Reducer
The gear ratio in a worm reducer is determined by the number of teeth on the worm wheel (also known as the worm gear) and the number of threads on the worm shaft. The gear ratio formula for a worm reducer is:
Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Shaft
For example, if the worm wheel has 60 teeth and the worm shaft has a single thread, the gear ratio would be 60:1.
It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.
When calculating the gear ratio, ensure that the worm reducer is properly designed and that the gear ratio aligns with the desired mechanical characteristics for your application. Additionally, consider factors such as efficiency, load capacity, and speed limitations when selecting a gear ratio for a worm reducer.
Energy Efficiency of a Worm Gearbox: What to Expect
The energy efficiency of a worm gearbox is an important factor to consider when evaluating its performance. Here’s what you can expect in terms of energy efficiency:
- Typical Efficiency Range: Worm gearboxes are known for their compact size and high gear reduction capabilities, but they can exhibit lower energy efficiency compared to other types of gearboxes. The efficiency of a worm gearbox typically falls in the range of 50% to 90%, depending on various factors such as design, manufacturing quality, lubrication, and load conditions.
- Inherent Losses: Worm gearboxes inherently involve sliding contact between the worm and worm wheel. This sliding contact generates friction, leading to energy losses in the form of heat. The sliding action also contributes to lower efficiency when compared to gearboxes with rolling contact.
- Helical-Worm Design: Some manufacturers offer helical-worm gearbox designs that combine elements of helical and worm gearing. These designs aim to improve efficiency by incorporating helical gears in the reduction stage, which can lead to higher efficiency compared to traditional worm gearboxes.
- Lubrication: Proper lubrication plays a significant role in minimizing friction and improving energy efficiency. Using high-quality lubricants and ensuring the gearbox is adequately lubricated can help reduce losses due to friction.
- Application Considerations: While worm gearboxes might have lower energy efficiency compared to other types of gearboxes, they still offer advantages in terms of compactness, high torque transmission, and simplicity. Therefore, the decision to use a worm gearbox should consider the specific requirements of the application, including the trade-off between energy efficiency and other performance factors.
When selecting a worm gearbox, it’s essential to consider the trade-offs between energy efficiency, torque transmission, gearbox size, and the specific needs of the application. Regular maintenance, proper lubrication, and selecting a well-designed gearbox can contribute to achieving the best possible energy efficiency within the limitations of worm gearbox technology.
Advantages of Using a Worm Reducer in Mechanical Systems
Worm reducers offer several advantages that make them suitable for various mechanical systems:
- High Gear Reduction Ratio: Worm gearboxes provide significant speed reduction, making them ideal for applications that require a high gear reduction ratio without the need for multiple gears.
- Compact Design: Worm reducers have a compact and space-saving design, allowing them to be used in applications with limited space.
- Self-Locking: Worm gearboxes exhibit self-locking properties, which means that the worm screw can prevent the worm wheel from reversing its motion. This is beneficial for applications where the gearbox needs to hold a load in place without external braking mechanisms.
- Smooth and Quiet Operation: Worm gearboxes operate with a sliding motion between the teeth, resulting in smoother and quieter operation compared to some other types of gearboxes.
- High Torque Transmission: Worm gearboxes can transmit high torque levels, making them suitable for applications that require powerful torque output.
- Heat Dissipation: The sliding action between the worm screw and the worm wheel contributes to heat dissipation, which can be advantageous in applications that generate heat during operation.
- Stable Performance: Worm reducers offer stable and reliable performance, making them suitable for continuous operation in various industrial and mechanical systems.
Despite these advantages, it’s important to note that worm gearboxes also have limitations, such as lower efficiency compared to other gear types due to the sliding motion and potential for higher heat generation. Therefore, selecting the appropriate type of gearbox depends on the specific requirements and constraints of the application.
editor by CX 2024-05-14