China high quality Customized Sintered Metal Iron Alloy Inner Rack Double Spur Gear gear patrol

Product Description

Complicated Micro Metallurgy Sintered Metal Spur Engranaje Helicoidal Drawing Helical Double Gear


Item Name Helical Double Gear
Model No. /
Material Alloy powder
Process Power Metallurgy

1. Our products passed TS16949 ISO-9001: 2000 quality management system verification
2. We own exquisite and advanced equipment, professional technical designer and rich producing experience
3. We can produce different size and shapes base on your drawing and samples. 
4. Best quality, competitive price, shortest delivery time and good service. 
5. Products are widely used at automotive part, textile machine, sewing machine, gasoline generator, power tools, oil pump rotor, clutch, oilless bearing, cu base products, stainless steels and so on. 
6. If you are interested in our products and our company, please kindly let us know what you need, please donot hesitate to contact with us. 

Technological process
Powder metallurgy is a kind of processing method which uses metal powder as raw material to make various products by pressing and sintering. Powder metallurgy process consists of 3 main steps. First, the main material is decomposed into many fine particles; Then, the powder is put into the mold cavity, and a certain pressure is applied to form a compact with the required shape and size of the part; Finally, the compact was sintered.

The essential advantage of P / M parts production process is that it has the final forming ability and high material utilization rate.

Our team

Our Factory

Application: Machinery
Hardness: Hardened Tooth Surface
Gear Position: Internal Gear
Manufacturing Method: Sintered Gear
Toothed Portion Shape: Spur Gear
Material: Alloy Powder
US$ 0.5/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

spur gear

Can spur gears be used in both horizontal and vertical orientations?

Yes, spur gears can be used in both horizontal and vertical orientations. Here’s a detailed explanation:

Spur gears are one of the most common types of gears used in various applications. They have straight teeth that are parallel to the gear axis and are designed to transmit power and torque between parallel shafts. The versatility of spur gears allows them to be used in different orientations, including horizontal and vertical configurations.

Horizontal Orientation:

In horizontal applications, where the gear shafts are positioned parallel to the ground, spur gears are widely utilized. Horizontal orientations are commonly found in machinery such as conveyor systems, automobiles, industrial equipment, and many other applications. Spur gears in horizontal configurations can efficiently transmit power and torque between shafts, providing reliable operation and smooth gear engagement.

Vertical Orientation:

Spur gears can also be used in vertical orientations, where the gear shafts are positioned perpendicular to the ground. Vertical gear arrangements are often encountered in applications such as wind turbines, elevators, vertical conveyor systems, and various industrial machinery. In these cases, the weight of the gears and any additional loads acting on them must be considered to ensure proper load distribution and support. Adequate lubrication and proper gear design, including tooth profile and material selection, are important factors to ensure reliable and efficient operation in vertical orientations.

When using spur gears in vertical orientations, some additional considerations may be necessary due to the effects of gravity and potential oil leakage. In vertical applications, gravity can affect the distribution of lubricant, potentially leading to inadequate lubrication of gear teeth. Proper lubrication techniques and lubricant selection should be employed to ensure sufficient film thickness and minimize wear. Additionally, seals or other measures may be required to prevent oil leakage, especially in applications where high-speed rotation or high loads are involved.

It’s important to note that while spur gears can be used in both horizontal and vertical orientations, the specific design and configuration of the gear system should be evaluated to ensure optimal performance and longevity. Factors such as load distribution, gear alignment, lubrication, and material selection should be carefully considered based on the intended orientation and operating conditions of the gear system.

Consulting with gear manufacturers, engineers, or industry experts can provide further guidance on the suitability and design considerations when using spur gears in horizontal or vertical orientations.

spur gear

What are the advantages and disadvantages of using spur gears?

Spur gears offer several advantages and disadvantages when used in mechanical systems. Here’s a detailed explanation of the advantages and disadvantages of using spur gears:

Advantages of Spur Gears:

  • Simplicity: Spur gears have a simple and straightforward design, consisting of cylindrical gears with straight teeth. Their simplicity facilitates ease of manufacturing, installation, and maintenance.
  • Efficiency: Spur gears are highly efficient in transmitting power from one shaft to another. They have minimal sliding friction between the gear teeth, resulting in high mechanical efficiency.
  • Cost-Effectiveness: Due to their simple design and ease of production, spur gears are generally more cost-effective compared to other types of gears. They are widely available and can be manufactured in large quantities at a reasonable cost.
  • Compactness: Spur gears have a compact design, making them suitable for applications where space is limited. They can be arranged in parallel or stacked configurations to achieve the desired gear ratios within a confined space.
  • High Load Capacity: Spur gears can handle high load capacities and transmit substantial amounts of torque. Their teeth are designed to distribute the load evenly across the gear face, resulting in improved load-bearing capabilities.
  • Precision: Spur gears provide precise and predictable motion due to the simplicity of their tooth engagement. This makes them suitable for applications that require accurate positioning and synchronization.

Disadvantages of Spur Gears:

  • Noisy Operation: Spur gears can produce noise during operation, especially at high speeds. The engagement of the gear teeth generates impact and vibration, resulting in noise that may require additional measures to mitigate.
  • Axial Thrust: Spur gears generate axial thrust forces along the gear shafts due to the parallel arrangement of their teeth. This thrust must be properly managed using thrust bearings or other means to prevent excessive axial loading on the gear shafts.
  • Limited Speed Ratio: Spur gears are primarily designed for applications with moderate speed ratios. They are less suitable for high-speed applications due to the limitations imposed by the tooth engagement and potential for increased noise and vibration.
  • Unidirectional Operation: Spur gears are typically designed for unidirectional power transmission. Reversing the direction of rotation can cause noise, impact, and increased wear due to the abrupt change in tooth engagement.
  • Prone to Wear: The sliding contact between the gear teeth in spur gears can result in wear over time, especially under heavy loads or inadequate lubrication. Regular maintenance and proper lubrication are necessary to minimize wear and extend gear life.

It’s important to consider these advantages and disadvantages when selecting gear types for specific applications. While spur gears are well-suited for many applications, other gear types, such as helical gears or bevel gears, may be more suitable in certain situations depending on the requirements and operating conditions.

spur gear

Can you explain the concept of straight-cut teeth in spur gears?

The concept of straight-cut teeth is fundamental to understanding the design and operation of spur gears. Straight-cut teeth, also known as straight teeth or parallel teeth, refer to the shape and arrangement of the teeth on a spur gear. Here’s a detailed explanation of the concept of straight-cut teeth in spur gears:

Spur gears have teeth that are cut straight and parallel to the gear axis. Each tooth has a uniform width and thickness, and the tooth profile is a straight line. The teeth are evenly spaced around the circumference of the gear, allowing them to mesh with other spur gears.

The key characteristics and concepts related to straight-cut teeth in spur gears include:

  • Tooth Profile: The tooth profile of a spur gear with straight-cut teeth is a straight line that extends radially from the gear’s pitch circle. The profile is perpendicular to the gear axis and remains constant throughout the tooth’s height.
  • Pitch Circle: The pitch circle is an imaginary circle that represents the theoretical point of contact between two meshing gears. For a spur gear, the pitch circle is located midway between the gear’s base circle (the bottom of the tooth profile) and the gear’s addendum circle (the top of the tooth profile).
  • Pressure Angle: The pressure angle is the angle between the line tangent to the tooth profile at the pitch point and a line perpendicular to the gear axis. It determines the force distribution between the meshing teeth and affects the gear’s load-bearing capacity and efficiency. Common pressure angles for spur gears are 20 degrees and 14.5 degrees.
  • Meshing: Straight-cut teeth in spur gears mesh directly with each other. The teeth engage and disengage along a line contact, creating a point or line contact between the contacting surfaces. This direct meshing arrangement allows for efficient power transmission and motion transfer.
  • Advantages and Limitations: Straight-cut teeth offer several advantages in spur gears. They are relatively simple to manufacture, resulting in cost-effective production. Moreover, they provide efficient power transmission and are suitable for moderate to high-speed applications. However, straight-cut teeth can generate more noise and vibration compared to certain other tooth profiles, and they may experience higher stress concentrations under heavy loads.

In summary, straight-cut teeth in spur gears refer to the straight and parallel arrangement of the gear’s teeth. The teeth have a uniform profile with a constant width and thickness. Understanding the concept of straight-cut teeth is essential for designing and analyzing spur gears, considering factors such as tooth profile, pitch circle, pressure angle, meshing characteristics, and the trade-offs between simplicity, efficiency, and noise considerations.

China high quality Customized Sintered Metal Iron Alloy Inner Rack Double Spur Gear gear patrolChina high quality Customized Sintered Metal Iron Alloy Inner Rack Double Spur Gear gear patrol
editor by CX 2023-09-23


Recent Posts

spur gear

As one of leading spurgear manufacturers, suppliers and exporters of mechanical products, We offer spurgear and many other products.

Please contact us for details.

Manufacturer supplier exporter of bush chains

We specializing in the production of Agricultural Gearbox, PTO Shafts, Sprockets, Fluid Coupling, Worm Gear Reducers, Gears and racks, Roller Chains, Sheave and Pulleys, Planetary Gearboxes, Timing Pulleys, Shaft Collars and more.

We have exported our products to clients around the world and earned a good reputation because of our superior product quality and after-sales service.

We warmly welcome customers both at home and abroad to contact us to negotiate business, exchange information and cooperate with us.