China Best Sales Helical Gear Shaft for Transmission spurs gear

Product Description

Helical Gear Shaft for Transmission

1. Description

No. Item Description
1 Name Spiral teeth-Gear Shaft
2 Size Products can be customized.
3 Manufacture Standard 5-8 Grade ISO1328-1997.
4 Material 45#Steel,20CrMnTi,40Cr,20CrNiMo,20MnCr5,GCR15SiMn,42CrMo,2Cr13stainless steel,Nylon,Bakelite,Copper,Aluminium.etc
5 Production Process The main process is Gear Hobbing and Gear Grinding, Selecting production process according to the different products.
6 Heat Treatment Carburizing and quenching ,High-frequency quenching,Nitriding, Hardening and tempering, Selecting heat treatment according to the different materials.
7 Testing Equipment Rockwell hardness tester 500RA, Double mesh instrument HD-200B & 3102,Gear measurement center instrument CNC3906T and other High precision detection equipments
8 Certification GB/T19001-2016/ISO9001:2015
9 Usage Used in printing machine, cleaning machine, medical equipment, garden machine, construction machine, electric car, valve, forklift, transportation equipment and various gear reducers.etc
10 Package According to customer’s request

 

2. Photos 

 

3. Order process

a. Customer sends us the drawing or sample, If only sample, our company supply the CAD drawing.

b. Our company supplies the processing technique and quotation.

c. Our company supplies the sample after customer confirmed processing technique and quotation.

d. Customer places the order after confirm the sample.

e. Customer pay 50% deposit

f. Quantity production.

g. Pay the balance after the acceptance and confirmation.

h. Dlivery.

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Gear Hobbing, Gear Shaping and Gear Grinding
Toothed Portion Shape: Involute
Material: 45#Steel,20crmnti,40cr,20CrNiMo,20mncr5,Gcr15simn,
Samples:
US$ 35/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

helical gear

What lubrication is required for helical gears?

Proper lubrication is essential for the optimal performance and longevity of helical gears. The lubrication requirements for helical gears depend on factors such as the operating conditions, gear materials, and manufacturer recommendations. Here’s a detailed explanation of the lubrication considerations for helical gears:

  • Lubricant Selection: The choice of lubricant for helical gears should be based on factors such as operating temperature, load, speed, and environmental conditions. Commonly used lubricants for helical gears include mineral oils, synthetic oils, and greases. Consult the gear manufacturer’s specifications or industry standards to determine the appropriate lubricant viscosity and type for your specific application.
  • Viscosity: The lubricant viscosity is an important parameter that influences the lubricating film thickness and the ability to separate the gear surfaces. The viscosity should be selected based on the operating conditions, taking into account factors such as temperature, speed, and load. Higher viscosity lubricants are typically used for heavy-duty applications or high-temperature environments, while lower viscosity lubricants may be suitable for lighter loads or lower speeds.
  • Extreme Pressure (EP) Additives: Helical gears, especially those operating under high loads or with high sliding velocities, may benefit from lubricants containing extreme pressure (EP) additives. EP additives help to reduce friction and wear by forming a protective film on the gear surfaces, preventing metal-to-metal contact and minimizing the risk of scuffing or scoring. EP additives are particularly important for helical gears in industrial machinery, automotive transmissions, and gearboxes.
  • Lubrication Method: The lubrication method for helical gears can vary depending on the gear design and application. Common methods include splash lubrication, oil bath lubrication, forced circulation systems, and oil mist lubrication. The lubrication method should ensure that an adequate amount of lubricant reaches the gear mesh to provide proper lubrication, cooling, and debris removal during operation.
  • Frequency of Lubrication: Regular lubrication maintenance is crucial for helical gears. The lubrication intervals should be determined based on factors such as the gear operating conditions, lubricant type, and gear manufacturer recommendations. Periodic inspections should be conducted to monitor the lubricant condition, check for contamination or degradation, and replenish or replace the lubricant as needed.
  • Proper Lubricant Application: When applying the lubricant to helical gears, ensure that the gear teeth and bearings are adequately coated. Pay attention to reaching areas of high friction and contact, such as the gear mesh and tooth roots. Follow the gear manufacturer’s recommendations or guidelines for the proper lubrication technique, which may involve methods such as oil bath immersion, drip lubrication, or centralized lubrication systems.
  • Contamination Control: Contamination can significantly affect the performance and lifespan of helical gears. Take measures to prevent the ingress of contaminants such as dirt, dust, moisture, and metal particles into the gear system. Use proper sealing arrangements, filtration systems, and regular maintenance practices to maintain a clean and contamination-free lubrication environment.

It is important to note that the lubrication requirements may vary depending on specific gear designs, materials, and operating conditions. Always refer to the gear manufacturer’s recommendations, industry standards, and consult with lubrication experts or engineers to determine the most suitable lubrication approach for your helical gear application.

helical gear

How do you address thermal expansion and contraction in a helical gear system?

Addressing thermal expansion and contraction in a helical gear system is crucial to ensure proper operation and prevent potential issues such as misalignment, increased backlash, or premature wear. Thermal expansion and contraction occur when temperature changes cause the gear components to expand or contract, affecting the gear meshing and overall performance. Here is a detailed explanation of how to address thermal expansion and contraction in a helical gear system:

  1. Material Selection: Choose materials for the gear components that have a similar coefficient of thermal expansion. Matching the coefficients of thermal expansion helps minimize the differential expansion and contraction between the gears, reducing the potential for misalignment or excessive clearance. Consult material suppliers or engineering references for guidance on selecting compatible materials.
  2. Design Considerations: Incorporate design features that account for thermal expansion and contraction. For example, provide adequate clearance between gear components to accommodate expansion without causing interference. Use proper tolerances and fits to allow for thermal variations. Consider incorporating expansion joints or flexible couplings in the system to absorb thermal movements and prevent stress concentrations.
  3. Operating Temperature Range: Determine the expected operating temperature range for the helical gear system. Consider the ambient temperature as well as any temperature fluctuations that may occur during operation. Understanding the temperature range helps in selecting appropriate materials and designing for thermal expansion and contraction effects.
  4. Lubrication: Proper lubrication is essential to address thermal expansion and contraction. Select lubricants that have good thermal stability and can maintain their viscosity within the expected temperature range. Lubricants with high thermal stability can help minimize the risk of viscosity changes, which can affect gear meshing characteristics and increase friction and wear.
  5. Preheating or Precooling: In some cases, preheating or precooling the gear components before assembly can help minimize the effects of thermal expansion and contraction. By bringing the components to a uniform temperature, the differential expansion can be reduced, resulting in better gear meshing alignment. However, this approach may not be suitable for all applications and should be evaluated based on the specific system requirements.
  6. Thermal Analysis and Simulation: Conduct thermal analysis and simulation of the helical gear system to evaluate the effects of temperature changes on gear performance. Finite element analysis (FEA) or specialized gear design software can be used to model the gear system and simulate thermal expansion and contraction. This analysis can provide insights into potential issues and guide design modifications or material selection.
  7. Monitoring and Maintenance: Regularly monitor the helical gear system for any signs of abnormal wear, noise, or misalignment. Implement a maintenance program that includes periodic inspections, lubricant analysis, and gear condition monitoring. Detecting early signs of thermal expansion- or contraction-related issues allows for timely corrective actions to be taken, minimizing the risk of equipment failure or reduced performance.

By considering these measures, it is possible to address thermal expansion and contraction in a helical gear system and ensure its reliable and efficient operation. Proper material selection, design considerations, lubrication, and monitoring contribute to minimizing the potential adverse effects of temperature variations on gear performance and extending the system’s lifespan.

helical gear

How do you choose the right size helical gear for your application?

Choosing the right size helical gear for your application involves considering several factors to ensure optimal performance and reliability. Here’s a detailed explanation of the steps involved in selecting the right size helical gear:

  1. Determine the Application Requirements: Start by understanding the specific requirements of your application. Consider factors such as the desired speed ratio, torque requirements, power transmission capacity, operating conditions (including temperature, lubrication, and environment), and any special considerations unique to your application.
  2. Calculate the Gear Parameters: Based on the application requirements, calculate the necessary gear parameters. These parameters include the pitch diameter, number of teeth, module or pitch, pressure angle, helix angle, face width, and center distance. These calculations can be performed using gear design formulas or software tools specifically designed for gear selection.
  3. Consider Load and Strength: Evaluate the load conditions that the helical gear will experience. Take into account factors such as the transmitted torque, radial loads, axial loads, and dynamic forces. Ensure that the selected gear can withstand the anticipated loads and provide sufficient strength and durability. Consider factors such as gear material, heat treatment, and tooth geometry to ensure adequate load-carrying capacity and resistance to wear and fatigue.
  4. Check Gear Meshing and Alignment: Proper gear meshing and alignment are crucial for smooth operation and efficient power transmission. Ensure that the selected gear size and tooth profile allow for proper meshing with the mating gear. Consider factors such as backlash, tooth contact pattern, and alignment tolerances to minimize noise, vibration, and wear. Proper alignment of shafts and bearings is also important for optimal gear performance.
  5. Consider Space Limitations: Evaluate the available space in your application for gear installation. Consider factors such as the gear diameter, length, and clearance requirements. Ensure that the selected gear size can fit within the available space without interfering with other components or causing installation challenges.
  6. Consult Manufacturer’s Guidelines: Refer to the manufacturer’s guidelines, catalogs, and technical documentation for the specific type and brand of helical gear you are considering. Manufacturers often provide recommendations, selection charts, and engineering support to assist in choosing the right size gear for different applications. It’s beneficial to leverage their expertise and knowledge.
  7. Consider Cost and Availability: Evaluate the cost and availability of the selected helical gear. Consider factors such as the gear’s price, lead time, availability of spare parts, and any additional costs associated with installation or maintenance. Balance your requirements with the available budget and ensure that the chosen gear offers a cost-effective solution without compromising performance or quality.

By following these steps and considering the application requirements, load conditions, gear parameters, meshing characteristics, space limitations, manufacturer’s guidelines, and cost factors, you can choose the right size helical gear that meets your specific application needs.

It’s important to note that gear selection can be a complex process, and it may be beneficial to consult with an experienced engineer or gear specialist to ensure an accurate and optimized gear sizing for your specific application.

China Best Sales Helical Gear Shaft for Transmission spurs gearChina Best Sales Helical Gear Shaft for Transmission spurs gear
editor by CX 2023-09-21