China factory Helical Cylindrical Transmission Gear Corrosion Resistant Rolling Mill Spare Parts bevel gear set

Product Description

Helical Cylindrical Transmission Gear Corrosion Resistant Rolling Mill Spare Parts

Product Description
CHINAMFG provides one-stop solution service for your metallurgical equipment spare parts, currently we produce rolling mill rolls, guide, blades, gears, sprocket wheels, worm, worm gears, flange processing parts, welding processing parts and etc. Gear rack is a rotating machine part with cut teeth, or cogs, which mesh with another toothed part in order to transmit torque. It includes spur gear, helical gear, skew gear, bevel gear, spiral bevel gear and so on. It is widely used for all kinds of machinery equipment.

Product Name Gear Racks
Material C45, 40Cr, 20CrMnTi, 42CrMo, Copper, Stainless steel
Tolerance 0.001mm – 0.01mm – 0.1mm
Tooth Hardness 50-60 HRC
Length Customized
Processing Forging, Machining, Hobbing, Milling, Shaving, Grinding, Heat treatment
Inspection Material Report, Dimensions Checking Report, Hardness Report
Payment L/C, Western Union, D/P, D/A, T/T, MoneyGram
Lead Time 4 weeks

Company Profile
HangZhou CHINAMFG Heavy Industry Technology Development Co., Ltd. is a leading enterprise in the wear-resistant casting of large engineering machinery and the forging of large equipment parts located in the New Material Industrial Park, Xihu (West Lake) Dis. High-Tech Zone, HangZhou City, the company covers an area of 90 Square kilometer and currently has more than 300 employees. The company is equipped with lost molding production line and lost casting production line imported from FATA Company in Italy, Inductotherm Vacuum Degassing Furnace(USA), Foseco Casting Technology(U.K), SPECTRO Spectrometer (Germany), the currently most advanced ZZ418A vertical parting flaskless shoot squeeze molding machine Disa production line, horizontal molding line and self-control lost casting production line in China, the most advanced sand treatment system in China. With 3 gas trolley heat treatment CHINAMFG and pusher-type CHINAMFG full-automatic heat treatment production lines, the company can annually produce 30,000 tons of various wear-resisting castings and metallurgical equipment forging parts.

Manufacturing Technique

Inspection

Dimension Measurement
According to the product drawings provided by customers, we will conduct strict dimensional inspection before the products are shipped.

Hardness TestAccording to the drawing requirements provided by customers, we will conduct hardness inspection before the products are shipped.

Roughness MeasurementAccording to the drawing requirements provided by customers, we will conduct roughness inspection before the products are shipped.

Packing and Shipping
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided. After goods well packaged, we need only 1 day ship goods to ZheJiang port, which means that most of the spare parts you bought from Hyton, it will get your port within 45 days all around the world if shipment by sea.

Our Advantages
1)Your inquiry related to our product & price will be rapidly.
2) Well trained & experienced staff are to answer all your inquiries in English of course.
3) Your business relationship with us will be confidential to any third party.
4) One stop purchase service: extensive rang of products for qualified offering.
5) We response to client’s inquiry within 12 hours.

FAQ
1.Q: What kind of products do you make?
A: We specialize in metallurgical equipment casting and forging parts, such as forging rolls, guide, blades, gears, sprocket wheels, worm, worm gears, flange processing parts, welding processing parts and etc.

2.Q: What kind of material do you offer?
A: High manganese steel, high chrome iron, alloy steel, low carbon steel, medium carbon steel, Stainless Steel and etc.

3.Q: What is your time of delivery?
A: Our lead time is generally 2-4 weeks for casting parts and shipping time is about 2-4 weeks.

4.Q: How to test your quality?
A: We will show you material inspection and measurement inspection after fininsh the goods, at the same time, we will give you the life time guarantee letter after shipping the goods. The best suggestion to all the customer who may interest our product-Test 2 set first, all the good business relationship all from test and trust. /* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Cast Gear
Toothed Portion Shape: Spur Gear
Material: Stainless Steel
Type: Circular Gear
Customization:
Available

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Customized Request

helical gear

What is the lifespan of a typical helical gear?

The lifespan of a typical helical gear can vary depending on several factors, including the quality of the gear design, manufacturing processes, operating conditions, maintenance practices, and the specific application in which the gear is used. While it is challenging to provide an exact lifespan, especially without specific context, here’s a detailed explanation of the factors that influence the lifespan of a helical gear:

  • Quality of Design and Manufacturing: The quality of the gear design and manufacturing processes significantly affects the lifespan of a helical gear. Gears that are well-designed, with accurate tooth profiles and proper material selection, tend to have longer lifespans. Precise manufacturing techniques, including gear cutting and tooth hardening processes, contribute to the gear’s durability and resistance to wear.
  • Operating Conditions: The operating conditions in which a helical gear is used play a crucial role in its lifespan. Factors such as the magnitude and frequency of torque loads, rotational speed, lubrication, temperature, and the presence of contaminants or corrosive substances can impact gear performance and longevity. Gears operating under heavy loads or in harsh environments may experience more wear and have a shorter lifespan compared to gears operating under lighter loads and cleaner conditions.
  • Maintenance Practices: Regular and proper maintenance practices can significantly extend the lifespan of a helical gear. This includes routine inspections, lubrication, and cleaning to ensure optimal gear performance. Inadequate maintenance, such as insufficient lubrication or neglecting to address early signs of wear or misalignment, can accelerate gear deterioration and reduce its lifespan.
  • Load Distribution: The distribution of the load across the gear teeth affects the lifespan of a helical gear. Proper alignment, accurate gear meshing, and evenly distributed torque loads help prevent localized wear and excessive stress on specific teeth. Uneven load distribution or misalignment can lead to premature wear and reduce the gear’s overall lifespan.
  • Material Selection: The choice of materials for the helical gear impacts its durability and lifespan. High-quality materials with excellent strength, hardness, and wear resistance properties, such as alloy steels or specialized gear materials, can enhance gear longevity. The selection of materials should consider the specific application requirements, including the expected torque loads and operating conditions.
  • Application Specifics: The nature of the application in which the helical gear is used also influences its lifespan. Some applications may involve intermittent or cyclical loading, while others may require continuous operation. The severity of the application, such as high-speed or high-torque environments, can affect gear wear and lifespan. Properly selecting a helical gear that is specifically designed and rated for the intended application can help maximize its lifespan.

It’s important to note that the lifespan of a helical gear is not necessarily a fixed value but rather an estimation based on various factors. With proper design, quality manufacturing, suitable materials, appropriate operating conditions, and regular maintenance, a well-engineered helical gear can have a long and reliable lifespan in its intended 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

What is a helical gear and how does it work?

A helical gear is a type of cylindrical gear with teeth that are cut at an angle to the gear axis. It is widely used in various mechanical systems to transmit power and motion between parallel shafts. Here’s a detailed explanation of helical gears and their working principles:

A helical gear consists of a cylindrical shape with teeth that are cut in a helical pattern around the gear’s circumference. The teeth of a helical gear are not perpendicular to the gear axis but are instead aligned at an angle, forming a helix shape. This helix angle allows for gradual engagement and disengagement of the gear teeth, resulting in smoother and quieter operation compared to spur gears.

The working principle of a helical gear involves the transfer of rotational motion and power between parallel shafts. When two helical gears mesh together, their helical teeth gradually come into contact, causing a sliding action as the gears rotate. This sliding action creates both axial and radial forces on the teeth, resulting in a thrust load along the gear axis.

As the helical gears rotate, the sliding action between the teeth causes a force component along the gear axis. This axial force is responsible for generating the thrust load on the gear, which must be properly supported by suitable thrust bearings or other means to ensure smooth and efficient operation.

The helical gear design offers several advantages:

  1. Smooth and Quiet Operation: The helical teeth engagement allows for a gradual contact between the gear teeth, reducing impact and noise during operation. This results in smoother and quieter gear performance compared to spur gears.
  2. Increased Load-Carrying Capacity: The helical gear design provides greater tooth contact compared to spur gears. This increased contact area allows helical gears to transmit higher loads and handle greater torque without experiencing excessive wear or tooth failure.
  3. Parallel Shaft Operation: Helical gears are primarily used for transmitting power and motion between parallel shafts. By meshing two helical gears on parallel shafts, rotational motion can be efficiently transmitted from one shaft to the other with a constant speed ratio.
  4. Ability to Transmit Motion at Various Angles: While helical gears are commonly used for parallel shaft applications, they can also be used to transmit motion at non-parallel shaft angles by using a combination of helical gears or by incorporating additional components such as bevel gears.

It is important to consider a few factors when using helical gears:

  • Helix Angle: The helix angle determines the degree of tooth engagement and sliding action. A higher helix angle increases the smoothness of operation but also introduces a larger axial force and thrust load on the gear.
  • Direction of Helix: Helical gears can have either a right-hand or left-hand helix. When two helical gears mesh, they must have opposite helix directions to ensure proper engagement.
  • Lubrication: Due to the sliding action between helical gear teeth, proper lubrication is crucial to minimize friction, wear, and heat generation. Adequate lubrication helps ensure the longevity and efficiency of the gear system.

In summary, a helical gear is a cylindrical gear with teeth cut in a helical pattern. It operates by gradually engaging and disengaging the teeth, resulting in smooth and quiet operation. Helical gears are widely used in various mechanical systems for parallel shaft applications, providing high load-carrying capacity and efficient power transmission.

China factory Helical Cylindrical Transmission Gear Corrosion Resistant Rolling Mill Spare Parts bevel gear setChina factory Helical Cylindrical Transmission Gear Corrosion Resistant Rolling Mill Spare Parts bevel gear set
editor by CX 2024-01-05