Product Description
K Series High Efficiency Gear Speed Reducer with Motor or without Motor
| Housing material |
HT200 high-strength cast iron from K37,47,57,67,77,87 |
| Housing material |
HT250 High strength cast iron from K97,127,157,167,187 |
| Housing hardness | HBS90-240 |
| Gear material | 20CrMnTi |
| Surface hardnesss of gear | HRC58°-62° |
| Gear core hardness | HRC33°-40° |
| Input/Output shaft material | 40CrMnTi |
| Input/Output shaft hardness | HBS241°-286° |
| Shaft at oil seal postion hardness | HRC48 ° -55 ° |
| Machining precision of gears material | Accurate grinding 6-5 grade |
| Heat treatment | tempering, cementing, quenching etc |
| Efficiency | up to 90% |
| Noise(Max) | 60-68dB |
| Unit model | Foot mounted,flange mounted,hollow shaft mounted |
| Input method | flange input,inline input,shaft input |
| Vibration | ≤ 20um |
| Backlash | ≤ 20Arcmin |
| Bearing brands | NSK,C&U etc |
| Oil seal brands | NAK,SKF etc |
| Lubricant | VG220 |
| Motor | IP55, F class |
| Motor shaft | 40Cr, Tempering, cementing,quenching etc. |
1.Our Services
1.1.We provide 12 months Warranty.
1.2. We have thousands of gearbox reducers. From Input Power 0.06KW to 200KW, Ratio 1.3-289.74, Output speed 0-1095rpm and Output torque 1.4-62800Nm. They can meet your all different requirements for different industries.
1.3. We provide E-catalog or Paper catalog,so you can select the model easily according to your requirements
1.4.You are welcome to visit our factory to check our products,we can help you to book the hotel or ticket
2.Company Information
2.1.Our Company:
The Predecessor for ZheJiang CHINAMFG Drive CO.,Ltd (originally called HangZhou CHINAMFG Transmission Machinery CO.,Ltd) State-owned military mould enterpriese which established in 1965.
CHINAMFG is located in HangZhou,China and the factory covers an area of about 25000 square meters.
Production Capacity:more than half a million sets of speed reducer per year.
2.2.Our People:
The company has a strong technical force. It has more than 400 employees at present, including more than 40 engineering technicians and 10 experts and senior engineers enjoying special allowances of the State Council.
2.3. Our Certificates:
Passed ” ISO 9001 International Quality System Certificate”, “International Quality Credit AAA++ Ceritifacte” , ” Swiss SGS Certificate”, Iconic Brand in Chinese Electromechanical Industry”, “Famous Brand of ZheJiang Province”, “Non-public Scientific and Technological Enterprise in ZheJiang Province”, “National High and New-tech Enterprise”, “TOP 50 in Chinese Gear Industry” “2011 HangZhou Engineering and Technological R&D Center” and so on.
3. FAQ
Q:Are you a trading company or manufacturer?
A: HangZhou CHINAMFG Drive Co., Ltd previously was a State-owned CHINAMFG Mold Factory, a state-owned military industrial enterprise established in 1965. It completed reform in 2002. Since reform, the company has developed rapidly. It took the lead in passing ISO9001 International Quality System Certificate and International Quality Credit AAA++ Certificate in 2004, and Swiss SGS Certificate in 2009. It has won such titles as “Iconic Brand in Chinese Electromechanical Industry”, “Famous Brand of ZheJiang Province”, “Non-public Scientific and Technological Enterprise in ZheJiang Province”, “National High and New-tech Enterprise”, and “Tope 50 in Chinese Gear Industry” successively
Q:Where do you base?
A: We are in HangZhou,ZheJiang ,China. We have 2 factories,New factory is in Xihu (West Lake) Dis. district,HangZhou,China and the old 1 is in CHangZhou District,HangZhou,China.
Q:What kinds of gearbox can you produce for us?
A:Main products of our company: JWB-X series mechanical continuously variable transmission, RV series worm gear reducer, B/JXJ cycloidal pin gear speed reducer, NCJ series gear reducer, and R, F K, S series helical-tooth reducer , more than 1 hundred models and thousands of specifications.
Q:What are the application of the gearbox?
A:Products are widely used in ceramic, glass, food, metallurgy, beer & drink, printing and dyeing, textile, petrochemical engineering, warehouse logistics, wood-working machine, environmental protection equipment, printing and packaging, pharmacy, and leather. Products are sold in some countries and regions, such as Europe, America, and Southeast Asia, and it possesses dozens of distributors and after-sale service agents.
Q:What is the material you use?
A1: Aluminum Housing body ( For the RV series worm gearbox Size 30~90)
A2: Cast iron(For the RV series worm gearbox, Size 110-150, For the NCJ & F/R/S/K series helical gear reducer)
Our factory (ZheJiang CHINAMFG Drive Co., Ltd.) is a big and famous 6S standard Gearbox factory with around 380 employees since 1965 . We export to South Asia, Southeast Asia, Africa, Middle East, South America, North America, Europe…etc. We offer Gearbox to SIEMENS,ABB,SACMI,BUHLER,MODENA,KEDA…etc. Sincerely hope to establish a win-win business relationship with you.
Expecting to talk about more details with you !
Best Wishes
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| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Function: | Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction |
| Layout: | Bevel Helical Gear |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal or Vertical |
| Step: | Three-Step |
| Customization: |
Available
| Customized Request |
|---|
Can spiral gears be used in automotive applications?
Yes, spiral gears can be used in automotive applications and provide several advantages in this context. Here’s why spiral gears are suitable for automotive applications:
- Noise Reduction: Spiral gears offer significant noise reduction compared to other gear types, making them ideal for automotive applications that require quiet operation. The helical tooth arrangement minimizes gear meshing noise by providing gradual tooth engagement, reducing impact and vibration.
- Smooth Operation: The gradual tooth engagement of spiral gears also contributes to smoother gear operation. This smoothness helps to improve shifting performance, leading to enhanced driving comfort and reduced wear on transmission components.
- High Load Capacity: Spiral gears have a high load-carrying capacity, which is important in automotive applications where gears are subjected to varying loads. They can handle the torque requirements of transmissions and differential systems effectively.
- Efficient Power Transmission: Spiral gears offer efficient power transmission due to their helical tooth profile. This efficiency helps optimize fuel consumption and overall vehicle performance. By reducing energy losses through improved tooth contact and reduced sliding friction, spiral gears contribute to better power transfer.
- Durability and Reliability: Automotive applications demand gears that can withstand continuous use and provide long-term reliability. Spiral gears are known for their durability, thanks to load distribution and reduced stress concentration. They can maintain reliable performance even under challenging conditions.
- Axial Thrust Compensation: Spiral gears can be designed with opposite helix angles to cancel out axial thrust. This feature is particularly beneficial in automotive applications where minimizing axial forces is crucial. It simplifies gear design and reduces the need for additional components, enhancing space efficiency.
Considering their noise reduction capabilities, smooth operation, high load capacity, efficient power transmission, durability, and axial thrust compensation, spiral gears are well-suited for various automotive applications. They are commonly used in transmissions, differentials, and other drivetrain components to ensure reliable and efficient power transfer, contributing to overall vehicle performance and comfort.
What are the limitations of using spiral gears in certain applications?
While spiral gears offer numerous advantages, they also have certain limitations that need to be considered when selecting them for specific applications. Here are some limitations of using spiral gears:
- Axial Thrust: Spiral gears generate axial thrust due to their helical tooth arrangement. This axial thrust can impose additional forces on the gear shafts and bearings, requiring proper design considerations and potential incorporation of thrust bearings in certain applications. Managing and compensating for axial thrust is crucial to ensure smooth gear operation.
- Manufacturing Complexity: The manufacturing process for spiral gears involves more complexity compared to straight-toothed gears. The helical tooth profile requires specialized cutting tools and machining techniques, adding to the manufacturing cost and complexity. This complexity may limit their use in applications with strict cost constraints or where simplicity of manufacturing is a priority.
- Axial Space Requirement: Spiral gears require more axial space compared to parallel-axis gears. The helical tooth profile results in a longer gear face width, which can limit their use in applications with space constraints. It is important to ensure that sufficient axial space is available to accommodate the larger size of spiral gears.
- Gear Alignment: Proper gear alignment is critical for spiral gears to function optimally. Any misalignment between the driving and driven gears can result in increased noise, vibration, and premature wear. Achieving and maintaining precise gear alignment may require additional attention and care during installation and regular maintenance.
- Speed Limitations: Spiral gears may have certain speed limitations due to the potential for tooth deflection and increased heat generation. At high speeds, the centrifugal forces acting on the helical teeth can cause deflection, leading to reduced gear accuracy and increased noise. Additionally, the sliding contact between the teeth can result in higher heat generation, requiring appropriate lubrication and cooling measures in high-speed applications.
While these limitations exist, they can often be managed or mitigated through proper design, engineering, and maintenance practices. It is important to carefully evaluate the specific requirements and constraints of the application to determine whether spiral gears are suitable or if alternative gear types may be more appropriate.
What are spiral gears and how are they used in machinery?
Spiral gears are a type of cylindrical gears with teeth that are curved in a spiral pattern. Unlike straight-cut gears, which have teeth that are parallel to the gear axis, spiral gears have teeth that are angled or helical. This helical tooth arrangement provides several advantages in terms of performance and noise reduction.
Spiral gears are commonly used in machinery for various applications due to the following reasons:
- Smooth and Quiet Operation: The helical tooth arrangement of spiral gears enables gradual tooth engagement, resulting in smoother and quieter operation compared to straight-cut gears. The angled teeth allow for gradual contact, reducing noise and vibration during gear meshing.
- Increased Load Capacity: The helical tooth design of spiral gears distributes the load over multiple teeth, increasing the load-carrying capacity. This makes spiral gears suitable for applications that require high torque transmission and heavy-duty operations.
- Improved Efficiency: The helical tooth arrangement of spiral gears helps in minimizing sliding friction between the teeth. This results in a higher level of efficiency compared to straight-cut gears, as there is reduced power loss due to friction during gear operation.
- Axial Thrust Compensation: Spiral gears can be designed with opposite helix angles on mating gears, which helps in canceling out the axial thrust generated during gear meshing. This feature eliminates the need for additional thrust bearings, simplifying the gear design and reducing complexity.
- Versatility: Spiral gears can be manufactured in various configurations, including spur, helical, and double helical designs. This versatility allows for their application in a wide range of machinery, including automotive systems, industrial equipment, and power transmission systems.
In machinery, spiral gears are commonly used in applications that require smooth operation, high load capacity, and efficient power transmission. Some examples include gearboxes, automotive differentials, machine tools, and heavy-duty industrial machinery.
Overall, the unique tooth geometry of spiral gears makes them a preferred choice in many machinery applications, offering improved performance, reduced noise, and enhanced load-carrying capabilities.
editor by Dream 2024-05-03