Product Description

Factory Manufacturer Custom SUS303 304 Aluminum Brass Worm Wheel Gear

The working principle of gear rack is to convert the rotary motion of gear into the reciprocating linear motion of rack, or convert the reciprocating linear motion of rack into the rotary motion of gear. The rack and pinion mechanism is composed of gears and racks. We have explained the gears in detail. The rack is divided into spur gear rack and helical gear rack. The tooth profile of the rack is a straight line rather than an involute (for the tooth surface, it is a plane), which is equivalent to an infinite cylindrical gear with an inHangZhou circle radius.

Product Description

Product name Worm Gear and Worm Wheel
Materials Available Stainless Steel, Carbon Steel, Brass,  Bronze, Iron, Aluminum Alloy,Copper,Plastic etc
Heat Treatment Quenching & Tempering, Carburizing & Quenching, High-frequency Hardening, Carbonitriding……
Surface Treatment Carburizing and Quenching,Tempering ,Tooth suface high quenching Hardening,Tempering
BORE Finished bore, Pilot Bore, Special request
Processing Method Molding, Shaving, Hobbing, Drilling, Tapping, Reaming, Manual Chamfering, Grinding etc
Pressure Angle 20 Degree
Hardness 55- 60HRC
Size Customer Drawings & ISO standard
Package Wooden Case/Container and pallet, or made-to-order
Certificate ISO9001:2008
Applications Electric machinery, metallurgical machinery, environmental protection machinery, electronic and electrical appliances, road construction machinery, chemical machinery, food machinery, light industrial machinery, mining machinery, transportation machinery, construction machinery, building materials machinery, cement machinery, rubber machinery, water conservancy machinery and petroleum machinery
Machining Process Material preparation, normalizing, rough turning, quenching and tempering, semi fine turning outer circle, rough turning spiral surface, fine turning (fine grinding) inner hole end face, keyway, semi fine turning spiral surface, pliers (rest incomplete teeth), semi fine grinding outer circle, semi fine grinding spiral surface, grinding center hole, fine grinding outer circle, fine grinding spiral surface, finished product inspection
Advantages 1. Produce strictly in accordance with ANSI or DIN standard dimension
2. Material: SCM 415 steel 
3. Bore: Finished bore
4. Precision grade: DIN 5 to DIN 7
5. Surface treatment: Carburizing and Quenching
6. Module: From 1 to 4
7. Tooth: From Z15 to Z70


Number Number of Teeth Shaft Bore Dia. AH7 (1mm Increment) Twisting Direction B C D E F G
Type Module Straight Bore Straight Bore+Tap Keyway+Tap
Straight Bore

Straight Bore+Tap


1.0 20 6 8 L(Left)


17 20 22 8 10 18
22~ 28 8 8~13 18~20 22~28 24~30
30~48 10 10~17 25~30 30~48 32~50
50~70 12 12~17 35~40 50~70 52~72
80~100 15 15~30 50 80~100 82~102
1.5 20~26 12 12~17 24~32 30~39 33~42 12 12 24
28~44 15 15~30 36~50 42~67.5 45~70.5
45~52 18 18~40 50~60 72~78 75~81
60~100 20 20-50 60~70 90~150 93·153
2.0 15~18 12 12~17 24~30 30~36 34~40 16 13 29
20~28 15 15·22 32~45 40~56 44~60
30~36 18 18~40 50 60~72 64~76
40~48 20 20~44 60 80~96 84~100
50~100 25 25~60 60~100 100~200 104~204
2.5 15~18 15 15~30 30~38 37.5~45 42.5~50 20 14 34
20~24 18 18~40 40~48 50~60 55~65
25~36 20 20~50 50~70 62.5~90 67.5~95
40~60 25 25~70 70~80 90~150 95~155
3.0 15~18 18 18~22 36~40 45~54 51~60 25 16 4

Company Profile

Packaging & Shipping


Main Markets? North America, South America, Eastern Europe , West Europe , North Europe, South Europe, Asia
How to order? * You send us drawing or sample
* We carry through project assessment
* We give you our design for your confirmation
* We make the sample and send it to you after you confirmed our design
* You confirm the sample then place an order and pay us 30% deposit
* We start producing
* When the goods is done, you pay us the balance after you confirmed pictures or tracking numbers.
* Trade is done, thank you!!


If you are interested in our products, please tell us which materials, type, width, length u want.

Application: Motorcycle, Machinery, Agricultural Machinery, Automation Equipment
Hardness: 55-60 HRC, Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Rolling Gear
Toothed Portion Shape: Spur Gear
Material: S45c
US$ 15/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

worm gear

How does a worm gear impact the overall efficiency of a system?

A worm gear has a significant impact on the overall efficiency of a system due to its unique design and mechanical characteristics. Here’s a detailed explanation of how a worm gear affects system efficiency:

A worm gear consists of a worm (a screw-like gear) and a worm wheel (a cylindrical gear with teeth). When the worm rotates, it engages with the teeth of the worm wheel, causing the wheel to rotate. The main factors influencing the efficiency of a worm gear system are:

  • Gear Reduction Ratio: Worm gears are known for their high gear reduction ratios, which are the ratio of the number of teeth on the worm wheel to the number of threads on the worm. This high reduction ratio allows for significant speed reduction and torque multiplication. However, the larger the reduction ratio, the more frictional losses occur, resulting in lower efficiency.
  • Mechanical Efficiency: The mechanical efficiency of a worm gear system refers to the ratio of the output power to the input power, accounting for losses due to friction and inefficiencies in power transmission. Worm gears typically have lower mechanical efficiency compared to other gear types, primarily due to the sliding action between the worm and the worm wheel teeth. This sliding contact generates higher frictional losses, resulting in reduced efficiency.
  • Self-Locking: One advantageous characteristic of worm gears is their self-locking property. Due to the angle of the worm thread, the worm gear system can prevent the reverse rotation of the output shaft without the need for additional braking mechanisms. While self-locking is beneficial for maintaining position and preventing backdriving, it also increases the frictional losses and reduces the efficiency when the gear system needs to be driven in the opposite direction.
  • Lubrication: Proper lubrication is crucial for minimizing friction and maintaining efficient operation of a worm gear system. Inadequate or improper lubrication can lead to increased friction and wear, resulting in lower efficiency. Regular lubrication maintenance, including monitoring viscosity, cleanliness, and lubricant condition, is essential for optimizing efficiency and reducing power losses.
  • Design and Manufacturing Quality: The design and manufacturing quality of the worm gear components play a significant role in determining the system’s efficiency. Precise machining, accurate tooth profiles, proper gear meshing, and appropriate surface finishes contribute to reducing friction and enhancing efficiency. High-quality materials with suitable hardness and smoothness also impact the overall efficiency of the system.
  • Operating Conditions: The operating conditions, such as the load applied, rotational speed, and temperature, can affect the efficiency of a worm gear system. Higher loads, faster speeds, and extreme temperatures can increase frictional losses and reduce overall efficiency. Proper selection of the worm gear system based on the expected operating conditions is critical for optimizing efficiency.

It’s important to note that while worm gears may have lower mechanical efficiency compared to some other gear types, they offer unique advantages such as high gear reduction ratios, compact design, and self-locking capabilities. The suitability of a worm gear system depends on the specific application requirements and the trade-offs between efficiency, torque transmission, and other factors.

When designing or selecting a worm gear system, it is essential to consider the desired balance between efficiency, torque requirements, positional stability, and other performance factors to ensure optimal overall system efficiency.

worm gear

How do you retrofit an existing mechanical system with a worm gear?

When retrofitting an existing mechanical system with a worm gear, several considerations need to be taken into account. Here’s a detailed explanation of the retrofitting process:

  1. Evaluate the existing system: Before proceeding with the retrofit, thoroughly assess the existing mechanical system. Understand its design, function, and limitations. Identify the specific reasons for considering a worm gear retrofit, such as the need for increased torque, improved efficiency, or enhanced precision.
  2. Analyze compatibility: Evaluate the compatibility of a worm gear with the existing system. Consider factors such as available space, structural integrity, alignment requirements, and the load-bearing capacity of the system. Ensure that the addition of a worm gear will not compromise the overall performance or safety of the system.
  3. Select the appropriate worm gear: Based on the requirements and constraints of the retrofit, choose a suitable worm gear. Consider factors such as gear ratio, torque capacity, efficiency, backlash, and mounting options. Select a worm gear that matches the specific needs of the retrofit and is compatible with the existing system.
  4. Modify or adapt the system: Depending on the compatibility analysis, it may be necessary to modify or adapt certain components of the existing system to accommodate the worm gear. This can involve making adjustments to shafts, bearings, housings, or other mechanical elements. Ensure that any modifications or adaptations are carried out with precision and adhere to industry standards.
  5. Install the worm gear: Install the selected worm gear into the modified or adapted system. Follow the manufacturer’s instructions and guidelines for proper installation. Pay attention to torque specifications, lubrication requirements, and any specific assembly procedures. Ensure that the worm gear is securely mounted and aligned to minimize misalignment and maximize performance.
  6. Test and optimize: After the installation, thoroughly test the retrofitted system to ensure its functionality and performance. Conduct tests to verify torque transmission, efficiency, backlash, noise levels, and any other relevant parameters. Monitor the system during operation and make any necessary adjustments or optimizations to fine-tune its performance.
  7. Document and maintain: Document the retrofitting process, including any modifications, adjustments, or optimizations made to the existing system. Keep records of installation procedures, test results, and maintenance activities. Regularly inspect and maintain the retrofitted system to ensure its continued performance and reliability.

It’s important to note that retrofitting an existing mechanical system with a worm gear requires expertise in mechanical engineering and an understanding of the specific system requirements. If you lack the necessary knowledge or experience, it is advisable to consult with professionals or engineers specializing in power transmission systems to ensure a successful retrofit.

worm gear

What are the benefits of using a worm gear mechanism?

Using a worm gear mechanism offers several benefits in various applications. Here are some of the advantages:

  • High Gear Reduction: Worm gears provide high gear reduction ratios, allowing for significant speed reduction and torque multiplication. This makes them suitable for applications where a small input speed or high torque output is required.
  • Compact Design: Worm gears have a compact design, with the worm and worm wheel positioned at right angles to each other. This makes them space-efficient and suitable for applications where size and weight limitations exist.
  • Self-Locking: Worm gears exhibit a self-locking characteristic due to the angle of the worm’s helical thread. This means that the worm can drive the worm wheel, but the reverse is not true. The self-locking feature allows worm gears to hold position without additional braking mechanisms, making them suitable for applications that require mechanical holding or braking capabilities.
  • Quiet Operation: Worm gear mechanisms are known for their quiet operation. The helical nature of the worm’s thread and the meshing with the worm wheel teeth help reduce noise and vibration, resulting in smoother and quieter performance.
  • Shock Load Resistance: Worm gears are capable of handling moderate to high shock loads due to their inherent design. The sliding action between the worm and worm wheel allows the gear system to absorb and distribute sudden impacts and loads effectively.
  • Versatile Mounting Options: Worm gears can be mounted in various orientations, including horizontal, vertical, and inclined positions, providing flexibility in design and installation.
  • High Torque Transmission: The design of worm gears allows for efficient transmission of high torque. This makes them suitable for applications that require heavy-duty torque requirements, such as lifting mechanisms, conveyor systems, and machine tools.
  • Simple Lubrication: Worm gears typically require lubrication to reduce friction and wear. However, compared to some other gear types, worm gears have relatively simple lubrication requirements due to the sliding action between the worm and worm wheel. Proper lubrication helps extend the lifespan of the gear system and maintain its performance.

These benefits make worm gear mechanisms well-suited for a wide range of applications, including automotive systems, industrial machinery, elevators, robotics, and more. However, it’s important to consider the specific requirements and limitations of each application to ensure the optimal use of worm gears.

China wholesaler Factory Price Custom SUS303 304 Aluminum Brass Worm Wheel Gear with Hot sellingChina wholesaler Factory Price Custom SUS303 304 Aluminum Brass Worm Wheel Gear with Hot selling
editor by CX 2023-11-30