China Custom Bronze Copper Brass Forging Helical CZPT Transmission Power Gear bevel spiral gear

Product Description

Product Description


We provide high precision manufacturing services for CNC machining/ forging /metal fabrication…
all parts can be produced according to customer’s drawings and designs.

Forgings including: mold forging , free forging, smith forging,open die forging, hot forging, cold forging.

Forging shape:Forged gear,Forged block,Forged flange,Forged ring,Forged shaft.

Product Parameters


Production parameters
Materials alloy steel, carbon steel, stainless steel, quenched and tempered steel, aluminum, copper
Heat treatment normalizing, annealing, quenching and tempering, surface quenching, induction quenching
Mechanical processing CNC turning, CNC milling, CNC boring, CNC grinding, CNC drilling
Gear processing hobbing, gear milling, CNC gear milling, gear cutting, spiral gear cutting,
nspection Chemical composition testing, ultrasonic testing, penetration testing, radiographic testing,Magnetic testing, tensile strength testing, impact testing, hardness testing, size testing.
Test Magnetic testing, tensile strength testing, impact testing, hardness testing, size testing.Chemical composition testing, ultrasonic testing, penetration testing, radiographic testing,
Main markets United States, Australia, Malaysia, Israel, United Kingdom, Russia, Canada, etc.

Data parameters
Gear module 8-120
Maximum value for gear grinding Module 24
Shaft diameter: maximum 2 200mm
Axis length: maximum 13000 millimeters
Gear diameter MAX.13 000 mm
Spiral gear diameter maximum. 2200mm
Gear shaft length: maximum . 5000 millimeters

Technical process


Detailed Photos

Packaging & Shipping




Our Advantages


Excellent service attitude, fast response speed, on-time delivery, and excellent after-sales service have been our practices since the beginning. Combined with high credit, competitive prices, close interaction with customers, and innovative working methods, we have won more and more business and excellent customer satisfaction.
Choosing us as your business partner would be the most correct choice for you.



Q: Is it possible to know how are my products going on without visiting your company?

A: Yes, it is. After the cooperation is reached, we will plan a perfect production solution for you. The Quality inspection team will track the production process and give regular feedback on the production progress to you. Our factory will also provide pictures and videos at any time. We can also let you see the real status of the order production through video calls.

Q: Will my drawings be safe after sending them to you?

A: Sure. We have a strict privacy policy and will protect each customer’s information. It will only be given to the person you designate with your permission.

Q: Are you a trading company or factory?

It is worth mentioning that our entire production process is controlled independently and there is no outsourced processing. This means that every step from raw material procurement, forging processing, heat treatment to finished product delivery is strictly controlled by us. Through refined management and cost control, we are able to provide customers with more competitive prices while ensuring product quality.

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Processing Object: Metal
Molding Style: Forging
Molding Technics: Pressure Casting
Application: Hardware
Material: Steel
Heat Treatment: Tempering
US$ 500/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

helical gear

What are the advantages and disadvantages of using helical gears?

Helical gears offer several advantages and disadvantages compared to other types of gears. It’s important to consider these factors when selecting the appropriate gear type for a specific application. Here’s a detailed overview of the advantages and disadvantages of using helical gears:

Advantages of Helical Gears:

  • Smooth and Quiet Operation: Helical gears operate with less noise and vibration compared to spur gears. The inclined tooth profile allows for gradual tooth engagement, resulting in smooth and quiet gear meshing. This advantage makes helical gears suitable for applications that require low noise levels and improved operator comfort.
  • High Load-Carrying Capacity: The inclined teeth of helical gears provide a larger contact area compared to other gear types. This increased contact area enables helical gears to handle higher loads and transmit greater torque without excessive wear or risk of tooth failure. Helical gears are known for their high load-carrying capacity, making them suitable for heavy-duty applications.
  • Efficient Power Transmission: Helical gears offer efficient power transmission due to their inclined tooth design. The gradual engagement of helical teeth reduces impact and shock loads, minimizing energy losses and improving overall system efficiency. This advantage makes helical gears suitable for applications where power efficiency is critical.
  • Higher Gear Ratios: Helical gears can achieve higher gear ratios compared to other gear types. This capability allows for more precise speed control and torque conversion in various applications. Helical gears are ideal for systems that require fine-tuning of rotational speed and torque output.
  • Compact Design: Helical gears have a compact design that allows for efficient use of space within a system. The inclined tooth profile enables multiple gear sets to be positioned on parallel or intersecting shafts, facilitating compact gear arrangements. This advantage is particularly useful in applications with space constraints.
  • Good Meshing Characteristics: Helical gears exhibit excellent meshing characteristics, including smooth gear engagement and minimal backlash. The inclined tooth profile ensures precise gear meshing, resulting in accurate motion control and reduced vibration. This advantage is desirable in applications that require precise positioning and synchronization of components.

Disadvantages of Helical Gears:

  • Axial Thrust: Helical gears generate an axial thrust force due to the helix angle of the teeth. This axial thrust must be properly supported to prevent axial movement of the gear shafts. Additional thrust bearings or thrust plates may be required, adding complexity and cost to the gear system design.
  • Complex Manufacturing: The manufacturing process of helical gears is more complex compared to spur gears. The inclined tooth profile requires specialized cutting tools and machinery to produce accurate helical gears. This complexity can result in higher manufacturing costs and longer lead times for custom gears.
  • Efficiency Reduction at High Speeds: Helical gears may experience a reduction in efficiency at high rotational speeds. This reduction is due to an increase in axial thrust forces, which generate additional friction and energy losses. Proper lubrication and design considerations are necessary to mitigate this efficiency reduction.
  • Thrust Load Sensitivity: Helical gears are sensitive to axial thrust loads. Uneven distribution of axial loads or improper alignment of gears can lead to increased wear and premature failure. Careful consideration of gear design, proper alignment, and adequate thrust load support are essential to ensure gear longevity and reliable operation.
  • Limited Ratios: Although helical gears can achieve higher gear ratios compared to spur gears, their range of available gear ratios is limited compared to other gear types, such as worm gears or bevel gears. If a very high or very low gear ratio is required for a specific application, other gear types may be more suitable.

Considering these advantages and disadvantages, engineers can make informed decisions when selecting helical gears for their specific applications. By carefully evaluating the requirements and constraints of the system, they can leverage the strengths of helical gears while mitigating any potential limitations.

helical gear

How do you calculate the efficiency of a helical gear?

The efficiency of a helical gear can be calculated by comparing the power input to the gear with the power output. The efficiency represents the ratio of the output power to the input power, expressed as a percentage. Here’s a detailed explanation of how to calculate the efficiency of a helical gear:

The formula for calculating gear efficiency is:

Efficiency = (Power Output / Power Input) * 100%

To calculate the efficiency, you need to determine the power input and power output values. Here are the steps involved:

  1. Power Input: The power input to the gear is the amount of power supplied to the gear system. It can be determined by multiplying the input torque (Tin) by the input rotational speed (Nin) in radians per second. The formula for power input is:

Power Input = Tin * Nin

  1. Power Output: The power output from the gear is the amount of power delivered by the gear system. It can be calculated by multiplying the output torque (Tout) by the output rotational speed (Nout) in radians per second. The formula for power output is:

Power Output = Tout * Nout

  1. Calculate Efficiency: Once you have determined the power input and power output values, you can calculate the gear efficiency using the formula mentioned earlier:

Efficiency = (Power Output / Power Input) * 100%

The resulting efficiency value will be a percentage, representing the proportion of input power that is effectively transmitted as output power by the helical gear system. A higher efficiency value indicates a more efficient gear system, with less power loss during the gear transmission.

It’s important to note that gear efficiency can be influenced by various factors, including gear design, tooth profile, operating conditions, lubrication, and manufacturing quality. Therefore, the calculated efficiency represents an estimate based on the given input and output power values, and it may vary in real-world applications.

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 Custom Bronze Copper Brass Forging Helical CZPT Transmission Power Gear bevel spiral gearChina Custom Bronze Copper Brass Forging Helical CZPT Transmission Power Gear bevel spiral gear
editor by Dream 2024-05-13


Helical bevel gear

As one of the leading helical bevel gear manufacturers, suppliers, and exporters of mechanical products, We offer helical bevel gear and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of helical bevel gear.

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