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.
ADVANCE HCD800 – 3,429:1
MEDIUM/HEAVY DUTY GEARBOX
Reference number | A-HCD800-3,429 |
Brand | Advance |
Model | HCD800 |
Ratio | 3,429:1 |
Power | 1530 HP @ 1800 RPM |
Max. Power | 1530 HP @ 1800 RPM |
RPM Range | 1000-1800 |
Rated propeller thrust | 110 kn |
N/n | 0,85 hp/rpm |
FEATURES & OPTIONS
Sae housing | Without/sae-00 |
Controls | Mechanical |
Pto | Not available |
Coupling size | 21 /18 inch |
Coupling type | Rubber block drive, with alu. ring |
DIMENSIONS
Vertical offset | 450 mm |
LxWxH | 1056x1280x1341 mm |
Net. weight | 2200 kg |
AVAILABLE ARRANGEMENTS
Ratio | 3,96:1 | 3,429:1 | 4,167:1 | 4,391:1 | 4,905:1 | 5,474:1 | 5,889:1 |
Rate | 0,85 hp/rpm | 0,80 hp/rpm | 0,75 hp/rpm | 0,70 hp/rpm |
ADVANCE 135A – 5,06:1
MEDIUM/HEAVY DUTY GEARBOX
Reference number | A-135A-5,06 |
Brand | Advance |
Model | 135A |
Ratio | 5,06:1 |
Power | 212,4 HP @ 1800 RPM |
Max. Power | 236 HP @ 2000 RPM |
RPM Range | 1000-2000 |
Rated propeller thrust | 29,4 kn |
N/n | 0,118 hp/rpm |
FEATURES & OPTIONS
Sae housing | Without/sae-1 |
Controls | Mechanical/ electrical |
Pto | Not available |
Coupling size | 14 inch |
Coupling type | Rubber block drive, with alu. ring |
DIMENSIONS
Vertical offset | 225 mm |
LxWxH | 578x744x830 mm |
Net. weight | 470 kg |
AVAILABLE ARRANGEMENTS
Ratio | 2,03:1 | 2,59:1 | 3,04:1 | 3,62:1 | 4,11:1 | 4,65:1 | 5,06:1 | 5,47:1 | 5,81:1 |
Rate | 0,134 hp/rpm | 0,125 hp/rpm | 0,118 hp/rpm | 0,103 hp/rpm | 0,094 hp/rpm |
ADVANCE HCD600A – 5,44:1
MEDIUM/HEAVY DUTY GEARBOX
Reference number | A-HCD600A-5,44 |
Brand | Advance |
Model | HCD600A |
Ratio | 5,44:1 |
Power | 972 HP @ 1800 RPM |
Max. Power | 1134 HP @ 2100 RPM |
RPM Range | 1000-2100 |
Rated propeller thrust | 90 kn |
N/n | 0,54 hp/rpm |
FEATURES & OPTIONS
Sae housing | Without/sae-00 |
Controls | Mechanical |
Pto | Not available |
Coupling size | 21 /18 /14 inch |
Coupling type | Rubber block drive, with alu. ring/(high) flexible coupling |
DIMENSIONS
Vertical offset | 415 mm |
LxWxH | 745x1094x1271 mm |
Net. weight | 1550 kg |
AVAILABLE ARRANGEMENTS
Ratio | 3,32:1 | 4,7:1 | 4,18:1 | 4,43:1 | 5,44:1 | 5,71:1 | 5:1 |
Rate | 0,65 hp/rpm | 0,62 hp/rpm | 0,54 hp/rpm | 0,6 hp/rpm |
ADVANCE HC400 – 4,06:1
MEDIUM/HEAVY DUTY GEARBOX
Reference number | A-HC400-4,06 |
Brand | Advance |
Model | HC400 |
Ratio | 4,06:1 |
Power | 684 HP @ 1800 RPM |
Max. Power | 684 HP @ 1800 RPM |
RPM Range | 1000-1800 |
Rated propeller thrust | 82 kn |
N/n | 0,38 hp/rpm |
FEATURES & OPTIONS
Sae housing | Without/sae-0/sae-1 |
Controls | Mechanical/ electrical |
Pto | Not available |
Coupling size | 18 /16 /14 inch |
Coupling type | Rubber block drive, with alu. ring/(high) flexible coupling |
DIMENSIONS
Vertical offset | 264 mm |
LxWxH | 843x950x890 mm |
Net. weight | 820 kg |
AVAILABLE ARRANGEMENTS
Ratio | 1,5:1 | 1,77:1 | 2,04:1 | 2,5:1 | 3,25:1 | 3,38:1 | 3,42:1 | 3:1 | 4,06:1 | 4,61:1 | 4,94:1 |
Rate | 0,45 hp/rpm | 0,38 hp/rpm | 0,25 hp/rpm |
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
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
Tel:
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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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Self-Locking Properties in a Worm Gearbox
Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.
The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed worm gearbox, the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.
This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there’s a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.
However, it’s important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it’s actively transmitting motion.
When considering the use of a worm gearbox for a specific application, it’s crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.
Diagnosing and Fixing Oil Leakage in a Worm Gearbox
Oil leakage in a worm gearbox can lead to reduced lubrication, increased friction, and potential damage to the gearbox components. Here’s a step-by-step process to diagnose and fix oil leakage:
- Inspect the Gearbox: Perform a visual inspection of the gearbox to identify the source of the leakage. Check for oil stains, wet spots, or oil pooling around the gearbox.
- Check Seals and Gaskets: Inspect the seals, gaskets, and O-rings for any signs of wear, cracks, or damage. These components are common points of leakage.
- Tighten Bolts and Fasteners: Ensure that all bolts, screws, and fasteners are properly tightened. Loose fasteners can create gaps that allow oil to escape.
- Replace Damaged Seals: If you find damaged seals or gaskets, replace them with new ones. Use seals that are compatible with the operating conditions and lubricant.
- Check Breather Vent: A clogged or malfunctioning breather vent can cause pressure buildup inside the gearbox, leading to leakage. Clean or replace the breather vent if necessary.
- Examine Shaft Seals: Check the shaft seals for wear or damage. If they’re worn out, replace them with seals of the appropriate size and material.
- Use Proper Lubricant: Ensure that you’re using the correct lubricant recommended for the gearbox. Using the wrong type of lubricant can cause leaks.
- Apply Sealants: In some cases, applying a suitable sealant to the joints and connections can help prevent leaks. Follow the manufacturer’s instructions for proper application.
- Monitor Leakage: After addressing the issues, monitor the gearbox for any signs of continued leakage. If leakage persists, further investigation may be required.
- Regular Maintenance: Implement a regular maintenance schedule that includes checking seals, gaskets, and other potential leakage points. Timely maintenance can prevent future leakage issues.
If you’re unsure about diagnosing or fixing oil leakage in a worm gearbox, consider consulting with a professional or gearbox manufacturer to ensure proper resolution.
Lubrication Requirements for a Worm Gearbox
Lubrication is crucial for maintaining the performance and longevity of a worm gearbox. Here are the key considerations for lubricating a worm gearbox:
- Type of Lubricant: Use a high-quality, high-viscosity lubricant specifically designed for worm gearboxes. Worm gearboxes require lubricants with additives that provide proper lubrication and prevent wear.
- Lubrication Interval: Follow the manufacturer’s recommendations for lubrication intervals. Regularly check the gearbox’s temperature and oil condition to determine the optimal frequency of lubrication.
- Oil Level: Maintain the proper oil level to ensure effective lubrication. Too little oil can lead to insufficient lubrication, while too much oil can cause overheating and foaming.
- Lubrication Points: Identify all the lubrication points on the gearbox, including the worm and wheel gear surfaces. Apply the lubricant evenly to ensure complete coverage.
- Temperature: Consider the operating temperature of the gearbox. Some lubricants have temperature limits, and extreme temperatures can affect lubricant viscosity and performance.
- Cleanliness: Keep the gearbox and the surrounding area clean to prevent contaminants from entering the lubricant. Use proper filtration and seals to maintain a clean environment.
- Monitoring: Regularly monitor the gearbox’s temperature, noise level, and vibration to detect any signs of inadequate lubrication or other issues.
Proper lubrication will reduce friction, wear, and heat generation, ensuring smooth and efficient operation of the worm gearbox. Always refer to the manufacturer’s guidelines for lubrication specifications and intervals.
editor by CX 2024-03-11