China manufacturer Desboer Nb142 Series Single Segment Low Backlash Ratio: 3-100 Smooth and Keyed Shaft Gearbox gearbox design

Product Description

Product Description

NB142 series adopts the design of integrating its sun gear and input shaft, the design of integrating its output structure. Using high- strength bearing, the product itself is characterized by high load, high precision, and low noise, focusing on the use of automation equipment, various types of packaging, printing, lithium-ion, LCD screens, robots, palletizers, woodworking, doors and windows and other industry sectors.          

 

Product Name: High Precision Planetary Gearbox
Product Series: NB142 Series
Product features: high precision, high load, low noise.
Product Description:
Integrated design concept with high strength bearings ensure the product itself is durable and efficient
A variety of output ideas such as shaft output, flange and gear are available.
1 arc minute ≤ backlash ≤ 3 arc minutes
Reduction ratios ranging from 3 to 100
Frame design: increases torque and optimises power transmission
Optimised selection of oil seals: reduces friction and laminate transmission efficiency
Protection class IP65
Warranty: 2 years

 

Our Advantages

High precision
High load
Low noise
 

Detailed Photos

Product Parameters

Segment number Single segment
Ratio i 3 4 5 6 7 8 9 10
Rated output torque Nm 320 510 610 570 520 470 420 420
Emergency stop torque Nm Three times of Maximum Output Torque
Rated input speed Rpm 3000
Max input speed Rpm 6000
Ultraprecise backlash arcmin ≤1
Precision backlash arcmin ≤3
Standard backlash arcmin ≤5
Torsional rigidity Nm/arcmin 50
Max.bending moment Nm 9400
Max.axial force N 4700
Service life hr 20000(10000 under continuous operation)
Efficiency % ≥97%
Weight kg 14.5
Operating Temperature ºC -10ºC~+90ºC
Lubrication   Synthetic grease
Protection class   IP64
Mounting Position   All directions
Noise level(N1=3000rpm,non-loaded) dB(A) ≤65
Rotary inertia Kg·cm² 9.25 7.54 7.42 7.25 7.14 7.07 7.04 7.03

 

Applicable Industries

 

                      Packaging   Machinery                                           Mechanical  Hand                                                    Textile  Machinery

                  Non  Standard  automation                                              Machine  Tool                                                    Printing    Equipment 

Application: Motor, Machinery, Marine, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: All Direction
Layout: Planetary Gearbox
Gear Shape: Helical Gear
Step: Single-Step
Customization:
Available

|

Customized Request

helical gearbox

Comparison of Helical Gearboxes and Bevel Gearboxes

Helical gearboxes and bevel gearboxes are both widely used for power transmission in various industrial applications. Here’s a comparison of their performance:

  • Gear Meshing: Helical gearboxes use helical gears with inclined teeth that gradually engage, resulting in smoother and quieter operation compared to the more abrupt engagement of straight-cut bevel gears.
  • Efficiency: Helical gearboxes generally offer higher efficiency due to their helical gear design, which distributes loads evenly across the teeth. Bevel gearboxes can have slightly lower efficiency due to the sliding action of gear teeth during engagement.
  • Load Capacity: Helical gearboxes can handle higher loads and torque due to the larger contact area of the gear teeth. Bevel gearboxes are suitable for moderate loads and applications where the direction of power transmission needs to be changed.
  • Space Efficiency: Bevel gearboxes are often more compact and suitable for applications where space is limited and a change in direction is required. Helical gearboxes may require more space due to the parallel shaft arrangement.
  • Noise and Vibration: Helical gearboxes generate less noise and vibration compared to straight-cut bevel gearboxes. Bevel gearboxes can be noisier, especially at higher speeds.
  • Application: Helical gearboxes are commonly used in applications requiring smooth and efficient power transmission, such as conveyors, pumps, and mixers. Bevel gearboxes are preferred for applications where changes in direction are necessary, such as in automotive differentials and printing presses.

Ultimately, the choice between helical and bevel gearboxes depends on the specific requirements of the application, including load capacity, space constraints, efficiency goals, and the need for directional changes in power transmission.

helical gearbox

Impact of Thermal Expansion on Helical Gearbox Performance

Thermal expansion can significantly affect the performance of helical gearboxes due to changes in dimensions and clearances caused by temperature variations. Here’s how it impacts:

1. Misalignment: Temperature changes can lead to differential expansion of gearbox components. This can result in misalignment of gears, shafts, and bearings, leading to increased friction, noise, and reduced efficiency.

2. Lubrication: Thermal expansion can alter the clearances within the gearbox, affecting the distribution and viscosity of the lubricating oil. Inadequate lubrication due to temperature-induced changes can result in increased wear and premature failure.

3. Gear Tooth Engagement: Temperature fluctuations can cause gear teeth to expand or contract, affecting the meshing engagement and load distribution. Inconsistent gear tooth contact can lead to uneven wear and reduced gear life.

4. Bearing Performance: Bearings in helical gearboxes are sensitive to temperature changes. Excessive heat can lead to reduced bearing life, increased friction, and potential seizure, affecting overall gearbox performance.

5. Noise and Vibration: Thermal expansion can lead to changes in gear and component clearances, resulting in altered vibration patterns and increased noise levels. This can impact the comfort of the system and indicate potential issues.

6. Material Fatigue: Repeated cycles of thermal expansion and contraction can lead to material fatigue and stress accumulation, reducing the overall lifespan of gearbox components.

Managing Thermal Effects: Manufacturers design helical gearboxes with considerations for thermal expansion, using materials with low coefficients of thermal expansion and incorporating features like expansion joints or thermal isolators. Proper lubrication, monitoring temperature, and maintaining consistent operating conditions are also crucial in mitigating thermal expansion effects.

Understanding and managing the impact of thermal expansion is essential to maintain the performance, efficiency, and durability of helical gearboxes.

helical gearbox

Industries Utilizing Helical Gearboxes

Helical gearboxes find widespread use in various industries due to their efficiency, smooth operation, and versatility. Some of the industries that commonly utilize helical gearboxes include:

  • Manufacturing: Helical gearboxes are employed in manufacturing processes for conveyor systems, material handling, and machine tools. Their ability to provide high torque and smooth motion makes them suitable for precision manufacturing.
  • Automotive: Automotive applications include power transmission in vehicles, especially in manual and automatic transmissions. Helical gearboxes contribute to improved fuel efficiency and smoother gear shifting.
  • Energy Generation: Helical gearboxes are used in power generation systems, such as wind turbines and hydroelectric generators. Their efficiency and load-bearing capacity are crucial for converting rotational motion into electrical power.
  • Construction: Construction equipment, such as cranes, excavators, and bulldozers, rely on helical gearboxes for efficient power transmission and control of heavy loads.
  • Mining: Mining operations use helical gearboxes in conveyors, crushers, and other equipment for material handling and ore extraction. The durability and high torque capacity of helical gearboxes make them suitable for demanding mining environments.
  • Marine: Marine vessels use helical gearboxes in propulsion systems to convert engine power into rotational motion for propellers. Their efficiency contributes to fuel savings and reliable marine operation.
  • Food and Beverage: Helical gearboxes are employed in food processing and packaging machinery due to their sanitary design and precise motion control.
  • Textile: Textile machinery relies on helical gearboxes for various processes, including spinning, weaving, and dyeing. Their ability to handle varying loads and provide smooth motion is beneficial in textile production.

The adaptability and efficiency of helical gearboxes make them a suitable choice for a wide range of industries, where reliable power transmission, smooth operation, and load-bearing capacity are essential.

China manufacturer Desboer Nb142 Series Single Segment Low Backlash Ratio: 3-100 Smooth and Keyed Shaft Gearbox   gearbox design		China manufacturer Desboer Nb142 Series Single Segment Low Backlash Ratio: 3-100 Smooth and Keyed Shaft Gearbox   gearbox design
editor by CX 2023-09-23