China Best Sales Spur Helical Rack CNC Milling Cutting Machine Rack Gear bevel spiral gear

Product Description

Product Description

High Quality Spur Helical Rack Cnc Milling Cutting Machine Rack Gear

Manufacturing Description:

Precision Grade: DIN 10e27

Material: S45C

Type: Helical Rack

Treatment of Teeth: Milled

Hardness: High Frequency.HRC48~52 Degree

Sides Ground: not included

Pressure Angle: 20 Degree

Total Pitch Error:0.2mm/1000mm


We exported gear rack in big quantity to Europe, America, Australia, Brazil, South Africa, Russia etc. There is standard gear rack available and also special gear rack as per your drawing or samples. Our gear racks produced by CNC machines


1) Our gear rack is produced as per DIN standards by CNC machine

2) The pressure angle: 20°/14.5°

3) Module: M0.4-M36/DP1-DP25

4) The maximum length can be 3500mm

5) The material can be Q235, C45, SS304, SS316L, aluminum, copper, nylon and so on.

Our gear racks are used for window machine, engraving machine, lift machine, opener rack, CNC machine, automobile, industrial usage so on.


Product Parameters

M1 15X15X1000

M1 15X15X2000
M1.5 17X17X1000
M1.5 17X17X2000
M2 20X20X1000
M2 20X20X2000
M2.5 25X25X1000
M2.5 25X25X2000
M3 30X30X1000
M3 30X30X2000
M4 40X40X1000
M4 40X40X2000
M5 50X50X1000
M5 50X50X2000
M5 50X50X3000
M6 60X60X1000
M6 60X60X2000
M6 60X60X3000
M8 80X80X1000



M8 80X80X2000

Packaging & Shipping

Packaging & Shipping

All the products can be packed in cartons,or,you can choose the pallet packing.

MADE IN CHINA can be pressed on wooden cases.Land,air,sea transportation are available.UPS,DHL,TNT,

FedEx and EMS are all supported.

Company Profile

About Mighty Machinery

ZheJiang Mighty Machinery Co., Ltd., specializes in manufacturing Mechanical Power Transmission Products. After over 13 years hard work, MIGHTY have already get the certificate of ISO9001:2000 and become a holding company for 3 manufacturing factories. 


MIGHTY advantage

1, Abundant experience  in the mechanical processing industries.

2,Large quality of various material purchase and stock in warhouse which ensure the low cost for the material and  production in time.

3,Now have 5 technical staff, we have strong capacity for design and process design, and more than 70 worker now work in our FTY and  double shift eveyday.

4,Strick quality control are apply in the whole prodution. we have incoming inspection,process inspection and final production inspection which can ensure the perfect of the goods quality.

5,Long time cooperate with the Global Buyer, make us easy to understand the csutomer and handle the export.


1.Q: Are you a factory or trade company?
    A: We have our own factory, our type is factory + trade.

2.Q: When can I get the quotation?
   A: We are usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price. Please call me or tell me in your email so that we will regard you are inquiry priority.

3.Q: Do you like to serve the client only with small order?
    A: We enjoy to grow up together with our clients whatever big or small.

4.Q: Can you send me a free sample?
    A: Yes. We can send you sample for checking our quality. You need pay sample fee, but we will refund you once you place bulk order from us.

5.Q: Could you tell me the packing of your goods?
   A: Packaging products in plastic bags–> Fix the carton box with packing tape–> Orderly, array the products in the carton box–> Arrayed well now–> Seal the carton box–> Completed.


6. Q: What is your MOQ?

    A: 1). In stock: MOQ is 1pcs.

         2). Not in stock:

        When the out diameter is less than 50mm, the MOQ is 100pcs;

        When the out diameter is more than 50mm and less than 300mm, the MOQ is 50pcs;

        When the out diameter is more than 300mm, the MOQ is 10pcs.


7. Q: What is your terms of payment?

     A:1).100% Western Union or PayPal in advance ,specially for small amount.

         2).100% T/T or western union in advance for small quantity order.
         3).30% T/T in advance, pay the balance payment before delivery the goods.
         4).100% payment in Alibaba.


8. Q: What are your terms of delivery?

    A: EXW, FOB ZheJiang or ZheJiang .


9. Q: What is the shipment time?

    A: 1).By air to air port: Fastest, usually 3 days or 4 days.
         2).By sea to sea port: Cheapest, usually 15 days to 30 days.
         3).By courier: DHL, FedEx, ..usually 5 days to 7 days.


10. Q: How to start an order with you?

       A: You can send us an inquiry here, or send us an email, or direct call us!

Standard or Nonstandard: Standard
Feature: Cold-Resistant, Corrosion-Resistant, Heat-Resistant, High Temperature-Resistance
Application: Conveyer Equipment
Surface Treatment: Zinc Plated/Blacken
Material: Steel, Carbon Steel, Stainless Steel
Size: 15*15*1000
US$ 18.65/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

helical gear

Are helical gears suitable for high-torque applications?

Helical gears are indeed well-suited for high-torque applications. Their design features and characteristics make them capable of handling significant torque loads without compromising performance or durability. Here’s a detailed explanation of why helical gears are suitable for high-torque applications:

  • Inclined Tooth Profile: Helical gears have teeth with an inclined profile, which allows for greater tooth engagement compared to other gear types. This increased contact area spreads the load over multiple teeth, distributing the torque more evenly. As a result, helical gears can handle higher torque levels without exceeding the strength limits of the gear teeth.
  • Large Contact Ratio: The inclined tooth design of helical gears also contributes to a large contact ratio, which refers to the number of teeth in contact at any given moment. The large contact ratio enables helical gears to transmit torque more smoothly and efficiently. It reduces localized stress on individual teeth, minimizing the risk of tooth failure and enhancing the gear’s ability to handle high-torque loads.
  • High Load-Carrying Capacity: Helical gears are known for their high load-carrying capacity. The inclined tooth profile and larger contact area allow helical gears to distribute the torque load over a broader surface, reducing the stress on individual teeth. This design feature enables helical gears to handle higher torque levels without experiencing premature wear or failure.
  • Gradual Tooth Engagement: During gear meshing, the inclined teeth of helical gears gradually engage, resulting in a smooth and gradual transfer of torque. This gradual engagement helps to reduce impact and shock loads, which can be detrimental to gear performance. By minimizing sudden torque spikes, helical gears maintain a consistent and reliable torque transmission, making them suitable for high-torque applications.
  • Efficient Power Transmission: Helical gears offer efficient power transmission, even in high-torque applications. The inclined tooth design reduces sliding friction between the gear teeth, resulting in lower energy losses and improved overall efficiency. This efficiency is particularly beneficial in high-torque applications where power consumption and heat generation need to be minimized.
  • Ability to Handle Variable Torque: Helical gears are capable of handling variable torque loads effectively. The gradual tooth engagement and larger contact area allow helical gears to accommodate fluctuations in torque without compromising performance. This flexibility makes helical gears suitable for applications where torque requirements may vary during operation.

In summary, helical gears are well-suited for high-torque applications due to their inclined tooth profile, large contact ratio, high load-carrying capacity, gradual tooth engagement, efficient power transmission, and ability to handle variable torque. These characteristics make helical gears reliable and durable in demanding industrial scenarios where high torque levels are encountered.

helical gear

How do you ensure proper alignment when connecting helical gears?

Proper alignment is crucial when connecting helical gears to ensure smooth and efficient operation, minimize noise and vibration, and prevent premature wear. Here’s a detailed explanation of how to ensure proper alignment when connecting helical gears:

  1. Use Alignment Tools: Alignment tools such as dial indicators or laser alignment systems can help achieve accurate alignment when connecting helical gears. These tools measure the relative positions of the gears and aid in adjusting their positions to achieve proper alignment. By using precise alignment tools, engineers can ensure the gears are correctly positioned for optimal meshing and load distribution.
  2. Check Gear Meshing: Proper gear meshing is essential for alignment. Ensure that the teeth of the helical gears are correctly meshed, and there is sufficient contact across the entire tooth width. Improper meshing, such as excessive or insufficient contact, can lead to noise, vibration, and accelerated wear. Adjust the gear positions if necessary to achieve optimal meshing conditions.
  3. Verify Center Distance: The center distance between the two helical gears must be accurately determined and maintained. The center distance affects the gear meshing and tooth contact pattern. Measure and verify the center distance using appropriate measuring tools, such as calipers or micrometers, to ensure it aligns with the gear design specifications. Make adjustments if needed to achieve the correct center distance.
  4. Check Axial Alignment: Proper axial alignment is crucial for helical gears. The axial alignment refers to the alignment of the gear shafts and the gears along the axial direction. Misalignment can cause uneven load distribution, increased noise and vibration, and accelerated wear. Use appropriate alignment tools to check and adjust the axial alignment, ensuring the gears are aligned along the same axis.
  5. Consider Preload and Backlash: Preload and backlash are important considerations for helical gears. Preload refers to applying a slight axial force to the gears to ensure proper contact and minimize backlash. Backlash is the small amount of clearance between the gear teeth. Follow the gear manufacturer’s recommendations for preload and backlash values and make adjustments as necessary during the gear connection process.
  6. Check Parallelism: The gear shafts should be parallel to each other to ensure proper alignment. Use precision measuring tools, such as straightedges or feeler gauges, to verify the parallelism of the gear shafts. If any deviation is detected, adjust the gear positions or make appropriate modifications to achieve parallel alignment.
  7. Consider Thermal Expansion: Take into account the potential thermal expansion of the gear components. Gears can expand or contract due to temperature variations during operation. Ensure proper clearances and allowances are considered to accommodate thermal expansion without compromising alignment. Consult the gear manufacturer’s guidelines or industry standards for recommended clearances based on the expected operating temperature range.
  8. Follow Manufacturer’s Guidelines: Always refer to the gear manufacturer’s guidelines, specifications, and recommendations for proper alignment procedures. Different gear types and designs may have specific alignment requirements. Manufacturers often provide detailed instructions and alignment tolerances that should be followed to achieve optimal gear performance and longevity.

By following these alignment practices, engineers can ensure the proper alignment of helical gears, promoting smooth and efficient gear operation, reducing noise and vibration, and maximizing gear system 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 Best Sales Spur Helical Rack CNC Milling Cutting Machine Rack Gear bevel spiral gearChina Best Sales Spur Helical Rack CNC Milling Cutting Machine Rack Gear bevel spiral gear
editor by CX 2023-09-07