Product Description
Product Description
Application
Marine Gearbox D300A is suitable for fishing, tug, engineering and transport boats.
Description
Marine Gearbox D300A possesses functions of speed reduction, ahead and astern clutching and bearing propeller thrust. It is designed of vertically offset and one-stage transmission, featuring in small in volume, large in ratio, light in weight and easy in dismantle & reassemble and maintain.
Main Data
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Input speed |
1000-2500r/min |
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Reduction ratio |
4.00 |
Trans. capacity |
0.257kw/r/min |
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4.48 |
0.243kw/r/min |
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5.05 |
0.221kw/r/min |
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5.52,5.90 |
0.184kw/r/min |
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6.56,7.06 |
0.147kw/r/min |
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7.63 |
0.125kw/r/min |
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Control way |
Push-and-pull flexible shaft, electrically, pneumatically |
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Rated thrust |
60KN |
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Center distance |
355mm |
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L×W×H |
786×980×1041mm |
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Net weight |
940kg |
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Flywheel |
12V135,SAE18,16,14 |
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CHINAMFG housing |
12V135,SAE0,1 |
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ADVANCE D300A – 4:1
MEDIUM/HEAVY DUTY GEARBOX
| Reference number | A-D300A-4 |
| Brand | Advance |
| Model | D300A |
| Ratio | 4:1 |
| Power | 630 HP @ 1800 RPM |
| Max. Power | 805 HP @ 2300 RPM |
| RPM Range | 1000-2300 |
| Rated propeller thrust | 60 kn |
| N/n | 0,35 hp/rpm |
FEATURES & OPTIONS
| Sae housing | Without/sae-0/sae-1 |
| Controls | Mechanical/ electrical |
| Pto | Available |
| Note | If using flexible couping, rate will rise 8% |
| Coupling size | 18 /16 /14 inch |
| Coupling type | Rubber block drive, with alu. ring/(high) flexible coupling |
DIMENSIONS
| Vertical offset | 355 mm |
| LxWxH | 786x920x1040 mm |
| Net. weight | 940 kg |
AVAILABLE ARRANGEMENTS
| Ratio | 4,48:1 | 4:1 | 5,05:1 | 5,52:1 | 5,9:1 | 6,56:1 | 7,06:1 | 7,63:1 |
| Rate | 0,33 hp/rpm | 0,35 hp/rpm | 0,30 hp/rpm | 0,25 hp/rpm | 0,20 hp/rpm | 0,17 hp/rpm | ||
Marine Propeller
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Our Service
1) Pre-Sales Service* Inquiry and consulting support. * Sample testing support. * View our Factory. 2) After-Sales Service* Training how to instal the machine, training how to use the machine. * Engineers available to service machinery overseas. |
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Company Profile
Our Company
We can provide:
WEICHAI
Sales of Chinese marine engines and gearboxes, generator sets, pump units, providing modification, upgrades, consulting services
Products China marine engine parts and engineering machinery parts. Products include: CHINAMFG HOWO, CHINAMFG Power, SHXIHU (WEST LAKE) DIS.I, service
Provide cargo warehousing, packaging, transportation and export agency services
Agency procurement, inspection and inspection agency.
HangZhou CHINAMFG power Co., Ltd
Contaction Person: ceci lee
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Marine |
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| Function: | Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase |
| Layout: | Cycloidal |
| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Can a Worm Gearbox be Used for High-Speed Applications?
Worm gearboxes are generally not recommended for high-speed applications due to their inherent design characteristics. Here’s why:
- Efficiency: Worm gearboxes tend to have lower efficiency compared to other gearbox types, which means they can generate more heat and experience more energy loss at high speeds.
- Heat Generation: The sliding contact between the worm and worm wheel in a worm gearbox can lead to significant friction and heat generation, especially at high speeds. This heat can cause thermal expansion, affecting the gearbox’s performance and longevity.
- Wear and Noise: High speeds can exacerbate wear and noise issues in worm gearboxes. Increased friction and wear can lead to faster degradation of components, resulting in reduced lifespan and increased maintenance needs.
- Backlash: Worm gearboxes may have higher backlash compared to other gearbox types, which can impact precision and accuracy in high-speed applications.
While worm gearboxes are more commonly used in applications requiring high torque and moderate speeds, they may not be the best choice for high-speed scenarios. If high-speed operation is a requirement, other gearbox types such as helical, spur, or planetary gearboxes are often better suited due to their higher efficiency, lower heat generation, and reduced wear at elevated speeds.
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.
Types of Worm Gear Configurations and Their Uses
Worm gear configurations vary based on the arrangement of the worm and the gear it engages with. Here are common types and their applications:
- Single Enveloping Worm Gear: This configuration offers high torque transmission and efficiency. It’s used in heavy-duty applications like mining equipment and industrial machinery.
- Double Enveloping Worm Gear: With increased contact area, this type provides higher load capacity and improved efficiency. It’s used in aerospace applications, robotics, and precision machinery.
- Non-Throated Worm Gear: This type has a cylindrical worm without a throat. It’s suitable for applications requiring precise motion control, such as CNC machines and robotics.
- Throated Worm Gear: Featuring a throat in the worm, this configuration offers smooth engagement and higher load capacity. It’s used in conveyors, elevators, and automotive applications.
- Non-Modular Worm Gear: In this design, the worm and gear are a matched set, resulting in better meshing and efficiency. It’s utilized in various industries where customization is essential.
- Modular Worm Gear: This type allows interchangeability of worm and gear components, providing flexibility in design and maintenance. It’s commonly used in conveyors, mixers, and material handling systems.
Selecting the appropriate worm gear configuration depends on factors such as load capacity, efficiency, precision, and application requirements. Consulting gearbox experts can help determine the best configuration for your specific needs.
editor by CX 2024-03-29
China best Cost Znfpy Series Worm Gear Used Marine Gearbox for Sale/Cheap Worm Gear Box Prices gearbox drive shaft
Product Description
Product Description
| Cost ZNFPY Series Worm Gear Used Marine Gearbox for Sale/Cheap Worm Gear Box Prices |
A gearbox is a mechanical component specifically used for extrusion processing. The gearbox is made of high-quality alloy steel material, which has undergone precision machining and multiple heat treatment processes, and has very high strength and wear resistance. Its characteristics include compact structure, stable transmission, low noise, and long service life.
The gearbox can meet all the requirements of extrusion equipment manufacturers for the gearbox. The compact universal whole piece housing maximizes standardization of the gearbox while providing maximum flexibility in structure, interfaces, and accessories.
Product Details
| Type |
Twin Screw Extruder |
| Trademark | TOPLINE |
| Transport Package | Wooden Box |
| Efficiency | 94%~98%(depends on the transmission stage |
| Origin |
ZheJiang ,China |
| After-sales Service | 1 Year |
Our Advantages
- European standard; high-end hard wear resistant Alloy
- High precision and high torque
- Has Load-Bearing Strong Ability, High Transmission Efficiency.
- Three-axis parallel design, which has large output torque, and large power. All the gears of the Gearbox have been ground to ensure smooth operation, low noise and long service life.
- Safe and reliable economical and durable.
- Easy to assemble & dismantle
Packaging & Shipping
Product Packaging:Customized
1.Outside package :wooden case
2.Inner package:Stretch film and and plastic film for humidity.
Logistics mode:Express delivery by sea, land, and air
Maritime ports: HangZhou/ZheJiang /HangZhou/HangZhou/HangZhou/ZheJiang /HangZhou
Strict Quality Controlling
Manufacturing Technique
01 Q: Who are we?
A: TOPLINE is a specializing in R&D, production, sales, application promotion of food engineering projects.Our products served for more than 970 companies,export to 116 countries, area, more than 20 years engineering team.
02 Q: How can we guarantee quality?
A:Always a preproduction sample before mass production:Always final lnspection before shipment.
03 Q: What can you buy from us?
A:Gear box,Preconditioner,Screw and Barrel ,Screw Elements ,Shaft ,Mould,etc
Welcome you come to our factory for visiting.Our company is in HangZhou City, ZheJiang Province, China.If any need for our products, please do not hesitate to contact with us. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| After-sales Service: | Support Remote Warranty |
|---|---|
| Warranty: | 1year |
| Material: | 304 Stainless Steel |
| Function: | Multifunctional |
| Advantage: | Easy Operation High Efficiency |
| After-Sales Service Provided: | Video Technical Support |
| Samples: |
US$ 99999/Piece
1 Piece(Min.Order) | |
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| Customization: |
Available
| Customized Request |
|---|
Is it Possible to Reverse the Direction of a Worm Gearbox?
Yes, it is possible to reverse the direction of a worm gearbox by changing the orientation of either the input or output shaft. However, reversing the direction of a worm gearbox can have some implications that need to be considered:
- Efficiency: Reversing the direction of a worm gearbox can potentially affect its efficiency. Worm gearboxes are typically more efficient in one direction of rotation due to the design of the worm and worm wheel.
- Backlash: Reversing the direction of rotation might lead to increased backlash or play in the gearbox, which can impact precision and smooth operation.
- Lubrication: Depending on the gearbox’s design, reversing the direction could affect lubrication distribution and lead to uneven wear on the gear teeth.
- Load: Reversing the direction might also impact the gearbox’s load-carrying capacity, especially if it’s designed for predominantly one-way operation.
- Noise and Vibration: Direction reversal can sometimes result in increased noise and vibration due to changes in gear engagement and meshing behavior.
If you need to reverse the direction of a worm gearbox, it’s advisable to consult the gearbox manufacturer’s guidelines and recommendations. They can provide insights into whether the specific gearbox model is suitable for reversible operation and any precautions or adjustments needed to ensure proper functioning.
Materials Used for Worm Gears
Worm gears are manufactured using a variety of materials to meet different application requirements. Some commonly used materials for worm gears include:
- Steel: Steel is a popular choice for worm gears due to its strength, durability, and wear resistance. It can handle heavy loads and is often used in industrial applications.
- Bronze: Bronze offers good lubricity and is commonly used for the worm gear (worm) component. It provides effective wear resistance and works well in applications where quiet operation is essential.
- Cast Iron: Cast iron is known for its high strength and durability. It’s often used for worm gears in applications where shock loads or heavy-duty conditions are expected.
- Aluminum: Aluminum worm gears are lightweight and corrosion-resistant, making them suitable for applications where weight reduction is important.
- Plastic: Some worm gears are made from plastic materials such as nylon or acetal. These materials are often chosen for their self-lubricating properties and quiet operation.
- Composite Materials: Composite materials can offer a combination of properties, such as lightweight construction and corrosion resistance. They can be suitable for specific applications.
The choice of material depends on factors such as the application’s load, speed, operating environment, and required performance characteristics. It’s important to consider these factors when selecting the appropriate material for worm gears to ensure optimal performance and longevity.
Can a Worm Gearbox Provide High Torque Output?
Yes, a worm gearbox is capable of providing high torque output due to its unique design and principle of operation. Worm gears are known for their high torque multiplication capabilities, making them suitable for applications that require significant torque transfer.
The torque output of a worm gearbox is influenced by several factors:
- Lead Angle: The lead angle of the worm affects the mechanical advantage of the gear system. A larger lead angle can result in higher torque output.
- Worm Diameter: A larger diameter worm can offer increased torque output as it provides more contact area with the gear.
- Gear Ratio: The gear ratio between the worm and the gear determines the torque multiplication factor. A higher gear ratio leads to higher torque output.
- Lubrication: Proper lubrication is essential to minimize friction and ensure efficient torque transmission.
- Material and Quality: High-quality materials and precision manufacturing contribute to the gearbox’s ability to handle high torque loads.
Due to their ability to provide high torque output in a compact form factor, worm gearboxes are commonly used in various industrial applications, including heavy machinery, construction equipment, conveyor systems, and more.
editor by CX 2024-03-14
China best Green Worm Transmission Electrical Remote Control Equipment Marine Gearbox car gearbox
Product Description
Product Description
High precision customized green worm transmission electrical remote control equipment heavy-duty marine gearbox
| 900 MARINE GEARBOX MAX.1440HP at 1600RPM | ||||||||
| Engine Speed:1000~1800RPM | ||||||||
| Ratio | 1.46 | 2.04 | 2.47 | 3 | 3.6 | 4.08 | 4.63 | 4.95 |
| Rate(hp/rpm) | 0.9 | 0.9 | 0.9 | 0.9 | 0.75 | 0.66 | 0.58 | 0.55 |
| L*W*H:1115*850*1310mm Net Weight:1600Kg | ||||||||
| Options/Comments: Electrical remote control ;Flexible connection | ||||||||
| Centre distance:Input and output coaxality | ||||||||
| Engine:12V190DC;M200… | ||||||||
Advantage Products
Company Profile
Packaging & Shipping
Contact us
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Output Speed: | 1800rpm |
|---|---|
| Applicable Industries: | Marine Engine |
| Gearing Arrangement: | Harmonic |
| Input Speed: | 750rpm |
| Product Name: | Small Boat Marine Advance Gearbox for Sale |
| Output Torque: | 335mm / 450mm / 550mm |
| Customization: |
Available
| Customized Request |
|---|
Can a Worm Gearbox Be Used in Heavy-Duty Machinery?
Yes, a worm gearbox can be used in heavy-duty machinery and is often chosen for such applications due to its inherent characteristics and advantages:
- High Torque Transmission: Worm gearboxes are known for their ability to transmit high torque loads, making them suitable for heavy-duty machinery that requires significant power transmission.
- Load Distribution: The design of worm gears provides robust load distribution and excellent contact between the worm and worm wheel teeth. This enhances their load-carrying capacity, making them capable of handling heavy loads without premature wear or failure.
- Compact Design: Worm gearboxes are compact and offer high reduction ratios in a single stage. This allows for the reduction of high input speeds to lower output speeds, often required in heavy-duty machinery.
- Overload Protection: Worm gears have a natural self-locking feature, which means the gear cannot be easily back-driven by external forces. This feature provides inherent overload protection, preventing damage to the gearbox and machinery in cases of sudden load spikes.
- Smooth Operation: Worm gearboxes offer smooth and steady operation, which is crucial for heavy-duty machinery where precision and controlled movement are essential.
However, when considering the use of a worm gearbox in heavy-duty applications, it’s important to ensure proper engineering and sizing. The design should account for factors such as load, speed, duty cycle, lubrication, and temperature to ensure optimal performance and longevity.
Overall, worm gearboxes are well-suited for heavy-duty machinery across various industries, including mining, construction, manufacturing, and more.
How to Calculate the Efficiency of a Worm Gearbox
Calculating the efficiency of a worm gearbox involves determining the ratio of output power to input power. Efficiency is a measure of how well the gearbox converts input power into useful output power without losses. Here’s how to calculate it:
- Step 1: Measure Input Power: Measure the input power (Pin) using a power meter or other suitable measuring equipment.
- Step 2: Measure Output Power: Measure the output power (Pout) that the gearbox is delivering to the load.
- Step 3: Calculate Efficiency: Calculate the efficiency (η) using the formula: Efficiency (η) = (Output Power / Input Power) * 100%
For example, if the input power is 1000 watts and the output power is 850 watts, the efficiency would be (850 / 1000) * 100% = 85%.
It’s important to note that efficiencies can vary based on factors such as gear design, lubrication, wear, and load conditions. The calculated efficiency provides insight into how effectively the gearbox is converting power, but it’s always a good practice to refer to manufacturer specifications for gearbox efficiency ratings.
Preventing Backlash in a Worm Gearbox
Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:
- High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
- Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
- Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
- Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
- Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
- Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.
It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.
editor by CX 2024-03-10