Product Description
SMR Reducer Specification
1 Output Hub
Standard or alternative hubs with metric bores are available to suit international standard shaft diameters.
2 Precision High Quality Gearing
Computer Designed Helical Gears, Strong Alloy Materials for High Load Capacity, Case Carburized for long life, Ground Profile(some intermediate pinions are shaved) Crown tooth Profile, In Conformance with ISO 1328-1997, 98% Efficiency for Per Stage, Smooth Quiet Operation with Several Teeth in Mesh.
3 Maximum Capacity Housing Design
Close Grain Cast Iron Construction, Excellent Vibration Dampening & Shock Resistance Features, Precision Bored and Dowelled to Ensure Accurate In-Line Assembly.
4 Strong Alloy Steel Shafts
Strong Alloy Steel, Hardened, Ground on Journals, Gear Seatings and Extensions, for
Maximum Load and Maximum Torsional Loads. Generous Size Shaft
Keys for Shock Loading and Conform to ISO Standards.
5 Additional Case Lugs Except H and J Gear Case
Eliminates the Need for Critical Tightening of Torque Arm Bolts. Controls Position of
Standard Torque Arm Mounting within Recommended limits.
6 BackStops
Alternative Parts, Antirun Back Device, AreAvailable on all 13:1 and 20:1 Ratio Units and do not recommend for 5:1 Units.
7 Bearings and Oilseals
Bearings are Adequately Proportioned and Conform to ISO Dimension Plan, Readily
Available WorldWide. Oilseals are Double Lipped Garter Spring Type, Ensuring Effective Oil Sealing.
8 Rubberised End Caps
Self Sealing Intermediate Cover Plates, to Standard ISO Housing Dimensions.
9 Torque Arm Assembly
For Easy Adjustment of the Belt.
SIZE : SMR B C D E F G H
RATIO : 5:1 13:1 20:1
Contact Me
Welcome to contact William for more details!
| Model | B13/B20 | C13/C20 | D13/D20 | E13/C20 | F13/E20 | G13/F20 | H13/G20 | J13/J20 |
| Output(RPM) | 10-115 | 10-110 | 10-110 | 10-105 | 10-105 | 10-100 | 10-100 | 10-100 |
| Power Rating(KW) | 0.29-3.11 | 0.49-4.62 | 0.82-7.81 | 1.25-11.55 | 1.97-17.01 | 3.11-27.09 | 4.9-40.7 | 7.8-60.5 |
| Permissible torque(Nm) | 277 | 468 | 783 | 1194 | 1881 | 2970 | 4680 | 7449 |
| Model | B5 | C5 | D5 | E5 | F5 | G5 | H5 | J5 |
| Output(RPM) | 100-400 | 100-400 | 100-400 | 100-400 | 100-400 | 100-400 | 100-400 | 100-400 |
| Power Rating(KW) | 2.68-7.14 | 4.2-9.66 | 6.62-15.65 | 10.29-24.57 | 15.12-35.91 | 25.2-59.9 | 36.2-81.9 | 62.2-134.2 |
| Permissible torque(Nm) | 256 | 401 | 632 | 983 | 1444 | 2407 | 3457 | 5940 |
| Dimension(mm) | SMR Size | |||||||
| SMR-B | SMR-C | SMR-D | SMR-E | SMR-F | SMR-G | SMR-H | SMR-J | |
| Standard size of shaft | 30 | 40 | 50 | 55 | 65 | 75 | 85 | 100 |
| Alternative size of shaft | 40 | 50 | 55 | 65 | 75 | 85 | 100 | 120 |
| Input shaft keyway | 6×3.5×50 | 6×3.5×59 | 8x4x63 | 8x4x70 | 10x5x70 | 12x5x90 | 14×5.5×100 | 16x6x100 |
Company Profile
l The largest manufacturer and exporter of worm gear reducers in Asia.
l Established in 1976, we transformed from a county owned factory to private 1 in 1996. HangZhou SINO-DEUTSCH POWER TRANSMISSION EQUIPMENT CO.,LTD is our new name since 2001.
l We are the first manufacturer of reducers and gearboxes in China who was given export license since year 1993.
l “Fixedstar” brand gearboxes and reducers are the first owner of CHINA TOP BRAND and Most Famous Trade Mark for reducers.
First to achieve ISO9001 and CE Certificate among all manufacturers of gearboxes in China.
As a professional manufacturer of worm gearbox and worm gear reducers in China, we mainly produce reduction gearbox,aluminum case worm gearboxes,arc gear cylindrical worm gearboxes, worm gear reducers, in line helical gearboxes, and cyclo drive reducers, etc. These products feature rational structure, stable performance, and reliable quality, and so on. They are widely used in power, mining, metallurgy, building material, chemical, food, printing, ceramic, paper-making, tobacco, and other industries.
We have 600 workers in our factory, which covers 70,000 square CHINAMFG in HangZhou. We have been making 2,500 units of reducers everyday since 2012. We are proudly exporting 70% of our products to more than 40 countries all over the word. Our customers come from Italy, Germany, USA, Canada, Spain, UK, Mexico, Brazil, Argentina, Turkey, Singapore and other main industrial countries in the world. 30% of them are OEM made for direct manufacturers of other products.
We warmly welcome customers from other parts of the world to visit us. Seeing is believing. We are very confident that after visiting our facility, you will have confidence on our products. We have the latest automatic equipments and experienced workers to ensure the stable quality and large output. We have the most sophisticated technical and engineering team to support most demanding requirement on standard and OEM products.
Looking CHINAMFG to meeting you in HangZhou, China.
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| Application: | Industry |
|---|---|
| Hardness: | Hardened |
| Type: | Circular Gear |
| Size: | B C D E F G H J |
| Material: | Cast Iron |
| Manipulate Way: | Robotics |
| Customization: |
Available
| Customized Request |
|---|

Can you provide real-world examples of products that use gear reducer technology?
Certainly! Gear reducer technology is widely used in various industries and products to enhance performance and efficiency. Here are some real-world examples:
1. Industrial Machinery: Gear reducers are commonly used in manufacturing machinery, such as conveyor systems, material handling equipment, and assembly lines, where they help control speed and torque for precise operations.
2. Wind Turbines: Wind turbines utilize gear reducers to transform the low rotational speed of the wind turbine rotor into the higher speed needed for electricity generation, optimizing energy conversion.
3. Automotive Transmissions: Automobiles use gear reducers as part of their transmissions to optimize power delivery from the engine to the wheels, allowing the vehicle to operate efficiently at different speeds.
4. Robotics: Robotic systems rely on gear reducers to control the movement and articulation of robot arms, enabling precise and controlled motion for various applications.
5. Printing Presses: Gear reducers are integral to printing presses, ensuring accurate and synchronized movement of printing plates, rollers, and paper feed mechanisms.
6. Conveyor Belts: Conveyor systems in industries like mining, agriculture, and logistics use gear reducers to regulate the movement of materials along the conveyor belts.
7. Packaging Machinery: Gear reducers play a crucial role in packaging machines, controlling the speed and movement of packaging materials, filling mechanisms, and sealing components.
8. Cranes and Hoists: Cranes and hoists rely on gear reducers to lift heavy loads with precision and control, ensuring safe and efficient material handling.
9. Pumps and Compressors: Gear reducers are utilized in pumps and compressors to regulate fluid flow and pressure, optimizing energy usage in fluid transportation systems.
10. Agriculture Equipment: Tractors and other agricultural machinery use gear reducers to adjust the speed and power delivery for different tasks, such as plowing, planting, and harvesting.
These examples demonstrate the diverse applications of gear reducer technology across various industries, showcasing their role in enhancing efficiency, control, and performance in a wide range of products and systems.

What factors should be considered when selecting the right gear reducer?
Choosing the appropriate gear reducer involves considering several crucial factors to ensure optimal performance and efficiency for your specific application:
- 1. Torque and Power Requirements: Determine the amount of torque and power your machinery needs for its operation.
- 2. Speed Ratio: Calculate the required speed reduction or increase to match the input and output speeds.
- 3. Gear Type: Select the appropriate gear type (helical, bevel, worm, planetary, etc.) based on your application’s torque, precision, and efficiency requirements.
- 4. Mounting Options: Consider the available space and the mounting configuration that suits your machinery.
- 5. Environmental Conditions: Evaluate factors such as temperature, humidity, dust, and corrosive elements that may impact the gear reducer’s performance.
- 6. Efficiency: Assess the gear reducer’s efficiency to minimize power losses and improve overall system performance.
- 7. Backlash: Consider the acceptable level of backlash or play between gear teeth, which can affect precision.
- 8. Maintenance Requirements: Determine the maintenance intervals and procedures necessary for reliable operation.
- 9. Noise and Vibration: Evaluate noise and vibration levels to ensure they meet your machinery’s requirements.
- 10. Cost: Compare the initial cost and long-term value of different gear reducer options.
By carefully assessing these factors and consulting with gear reducer manufacturers, engineers and industry professionals can make informed decisions to select the right gear reducer for their specific application, optimizing performance, longevity, and cost-effectiveness.

Are there variations in gear reducer designs for specific tasks and applications?
Yes, gear reducer designs vary widely to suit specific tasks and applications across various industries. Manufacturers offer a range of gear reducer types and configurations to accommodate different requirements, including:
- Helical Gear Reducers: These are versatile and provide smooth and efficient torque transmission. They are commonly used in applications requiring high precision and moderate speed reduction, such as conveyors, mixers, and agitators.
- Bevel Gear Reducers: These are ideal for transmitting power between intersecting shafts. They are often used in heavy machinery, printing presses, and automotive applications.
- Worm Gear Reducers: These provide compact solutions and are suitable for applications with higher speed reduction requirements, such as conveyor systems, winches, and elevators.
- Planetary Gear Reducers: These offer high torque density and are used in applications demanding precise control, such as robotics, aerospace, and heavy-duty machinery.
- Parallel Shaft Gear Reducers: Commonly used in industrial machinery, these reducers are designed for high torque and reliability.
- Right-Angle Gear Reducers: These are used when space limitations require a change in shaft direction, commonly found in packaging equipment and conveyors.
Each type of gear reducer has unique features and benefits that make it suitable for specific tasks. Manufacturers often provide customization options to tailor gear reducers to the precise requirements of an application, including gear ratios, mounting options, and input/output configurations.
Therefore, the variation in gear reducer designs allows industries to select the most appropriate type based on factors such as torque, speed, space constraints, precision, and environmental conditions.


editor by CX 2024-01-10