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Help CenterNBD355 Planetary Gear Reducer With Helical Gearing for Smooth Operation
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Introducing the NBD355 Planetary Gear Reducer – a robust and reliable power transmission solution engineered by Jiangsu Manqi Machinery Co., Ltd., a dedicated manufacturer based in Suzhou, Jiangsu, China. Since our establishment in 2017, we have focused on producing high-quality gear reducers that meet the demands of diverse industries, from Eastern Europe to Southeast Asia, Africa, and South Asia. The NBD355 combines advanced helical gearing with a proven planetary design to deliver exceptionally smooth operation, high torque density, and long service life. Whether you need to drive heavy conveyors, mixers, or crushers, this reducer ensures minimal vibration and noise while maximizing efficiency.
Our factory spans 10,000–30,000 square meters, and our team of 11–50 experienced professionals is committed to precision manufacturing and strict quality control. With an annual export value below US$1 million and flexible shipping from the Port of Shanghai, we offer cost-effective solutions without compromising performance.
Key Features & Technical Specifications
- Helical Gearing for Smooth Operation – The primary stage of helical gears ensures continuous tooth engagement, reducing noise and vibration compared to straight spur gears. This results in smoother starts and stops, especially critical for precision machinery.
- Planetary Gear Stage for High Torque Density – The secondary planetary stage distributes load across multiple planet gears, achieving high torque output in a compact housing. Ideal for applications where space is limited but power requirements are high.
- Durable Material & Heat Treatment – Gears are made from 20CrMnTi alloy steel, carburized and quenched for surface hardness of HRC 58–62, ensuring excellent wear resistance and fatigue strength.
- Customizable Reduction Ratios – Available ratios range from 5:1 to 400:1, allowing you to match the exact speed and torque requirements of your system. Custom ratios can be manufactured upon request.
- Versatile Mounting Options – Choose foot, flange, or shaft mount configurations to fit your existing machinery layout. Flange mounting is particularly suitable for direct coupling with motors.
- High Efficiency – Combined helical and planetary design achieves up to 95% efficiency per stage, reducing energy losses and operating costs over the product’s lifetime.
| Parameter | Value |
|---|---|
| Model | NBD355 |
| Input Power Range | 0.75 kW – 200 kW |
| Nominal Output Torque | Up to 50,000 Nm |
| Reduction Ratio | 5:1 – 400:1 (Custom) |
| Efficiency | ≥ 94% (average per stage) |
| Lubrication | Splash or forced oil (recommended for heavy loads) |
| Ambient Temperature | -20°C to +40°C (special low-temp options available) |
| Weight | Approx. 400 kg (varies with ratio & mounting) |
Advantages & Customer Benefits
- Reduced Maintenance – Helical gears operate more quietly and with less vibration, extending the life of bearings and seals. The planetary stage’s symmetric load distribution minimizes uneven wear.
- Space-Saving Design – Compared to traditional parallel-shaft gearboxes, the NBD355 achieves higher reduction in a shorter axial length, freeing up valuable floor space in your plant.
- Flexible Integration – Compatible with standard IEC/NEMA motors, and we can supply a complete motor-reducer unit if needed. Custom input flanges and output shafts are available upon request.
- Reliable Performance in Harsh Conditions – All exterior surfaces are coated with anti-corrosion paint, and optional IP55 protection is available for dusty or wet environments. Suitable for outdoor installations with proper covers.
At Jiangsu Manqi Machinery, we take pride in our in-house manufacturing capability. Every NBD355 reducer undergoes a 4-hour run-in test under load to verify noise levels, temperature rise, and sealing integrity. Our quality inspectors check gear backlash and concentricity to ensure consistent products. With our factory located in Suzhou – a major industrial hub – we benefit from a mature supply chain and efficient logistics via Shanghai Port.
While our annual export value is currently below US$1 million, we serve a growing number of customers across Eastern Europe, Southeast Asia, Africa, and South Asia. Many clients return to us for repeat orders because they value our responsiveness and willingness to tailor solutions. We are a small to medium-sized team (11–50 employees), which allows us to offer personalized service – you can speak directly with our engineers to discuss your application.
Take the next step toward smoother, more efficient production. Contact us today to request a quotation or technical data sheet for the NBD355 planetary gear reducer with helical gearing. Our team will help you select the optimal ratio, mounting, and accessories to match your specific machinery. We also offer spare parts support and after-sales assistance for all our products.
Frequently Asked Questions (FAQ)
-
Q: What is the typical lead time for the NBD355 gear reducer?
A: Standard models with common ratios are usually shipped within 15–25 working days after order confirmation. Custom configurations may require 4–6 weeks depending on complexity. -
Q: Can I use the NBD355 with a servo motor for precise positioning?
A: Yes, the helical/planetary combination provides low backlash (standard 15–20 arcmin, or optional -
Q: What kind of lubrication is recommended?
A: For most applications, we recommend synthetic gear oil (ISO VG 220 or 320). The unit is shipped without oil; you must fill to the correct level before operation. For vertical mounting, a forced oil circulation system may be needed. -
Q: Does the reducer come with a warranty?
A: We offer a standard 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options are available upon request. -
Q: Can I get a custom output shaft or flange?
A: Absolutely. We regularly produce custom output shafts (splined, keyed, hollow) and flanges to match customer’s machinery. Please provide a drawing or dimension details for evaluation. -
Q: How do I choose the correct reduction ratio for my application?
A: You'll need to know the required output torque and speed. Our technical team can help with a calculation based on your motor power and driven equipment. Contact us with your application parameters. -
Q: What is the maximum ambient temperature the reducer can handle?
A: Standard design is for -20°C to +40°C. For higher temperatures, we can use special seals and high-temperature grease/oil. Please consult us for extreme conditions. -
Q: Do you provide drawings or CAD models for integration?
A: Yes, 2D PDF drawings are provided upon request. 3D STEP files are available after order confirmation for selected models.
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