China wholesaler 4.5L/5.9L/8.9L Engine Gear Large Diameter High Precision OEM Gear manufacturer

Product Description

Product Name: OEM/ODM Engine Gear

Engine Gear Manufacturing Plant of Xihu (West Lake) Dis.Feng Motor Corporation(DFM23)

Global OEM supply to CHINAMFG and Volvo worldwide.

 

Engine Gear Plant of DFM (DFM23 for short) was founded in 1969, which is a large production base for auto parts. We have perfect parts and components technology development capabilities thanks to our advantage of strong tool and R&D capability.

Staff: There are 795 employees in DFM23 and 156 of them are technical engineers.

Equipment:  The plant owns more than 852  machines, including 103 advanced machines which were imported.
 

Forging and machinining Equipment:

Quality Test Equipment:
 

 

Certifications:

ISO9001(2004);
ISO/TS16949(2004.11);
ISO14000(2005.3);
OHSASI18000(2005.3);
ASES(2571.10)

 

Product Development Capability:

Strong technical strength for CHINAMFG system optimization design, noise reduction, strength check and so on.

Quick Response; R&D with Customer.                                                 

Full Quality Control; Self Design/ Self made tooling                

 

Informatization Technology Applied in Plant:

PMS & ERP & MES system come into service in March 2017.

Technical Patents/ Intellectual Property:

Now we own 12 patents.

New Technology Applications:

Anti-wear phosphating; Shot Peen; High speed Hobbing; High speed teeth grinding; Continuous heat treatment
Honing Hole; Hard turning; Inner hole and end-face grinding.

 

Gear Product Development Plan:

 

Global Supply to Cummins
 

We provide nearly 200 kinds of gears for CHINAMFG global 15 OEM plants & cooperative partners, 3 spare parts service center, products cover 2.8L-95L.

At present, we are sole supplier for 45L above heavy-duty engine gear; Provide optimized design proposal for CHINAMFG engine gear, participate in R&D and other technical support and comprehensive service ability.

 

We manufature according to customer’s drawings and requirements,
 

Type of Gears We can supply:
 

Gear Crankshaft / Gear Camshaft / Gear Fuel pump / Gear Air compressor / Gear from moving

 

Material:
 

20CrMnTiH, 20CrMo, 20MnCr5, SAE8620H, 17CrNiMo7-6

 

Weight(kg): 0.6-30

 

Size(mm): 50-360

 

Gear Precision: ISO6 Level

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Application: Motor, Electric Cars, Car
Hardness: Hardened Tooth Surface
Gear Position: Internal Gear
Manufacturing Method: Forging+Machining
Toothed Portion Shape: Spur Gear
Material: Forging Gear
Samples:
US$ 50/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

spur gear

How do you calculate the efficiency of a spur gear?

Calculating the efficiency of a spur gear involves considering the power losses that occur during gear operation. Here’s a detailed explanation:

In a gear system, power is transmitted from the driving gear (input) to the driven gear (output). However, due to various factors such as friction, misalignment, and deformation, some power is lost as heat and other forms of energy. The efficiency of a spur gear represents the ratio of the output power to the input power, taking into account these power losses.

Formula for Calculating Gear Efficiency:

The efficiency (η) of a spur gear can be calculated using the following formula:

η = (Output Power / Input Power) × 100%

Where:

η is the efficiency of the gear system expressed as a percentage.

Output Power is the power delivered by the driven gear (output) in the gear system.

Input Power is the power supplied to the driving gear (input) in the gear system.

Factors Affecting Gear Efficiency:

The efficiency of a spur gear is influenced by several factors, including:

  • Tooth Profile: The tooth profile of the gear affects the efficiency. Well-designed gear teeth with accurate involute profiles can minimize friction and power losses during meshing.
  • Lubrication: Proper lubrication between the gear teeth reduces friction, wear, and heat generation, improving gear efficiency. Insufficient or inadequate lubrication can result in increased power losses and reduced efficiency.
  • Gear Material: The selection of gear material affects efficiency. Materials with low friction coefficients and good wear resistance can help minimize power losses. Higher-quality materials and specialized gear coatings can improve efficiency.
  • Gear Alignment and Meshing: Proper alignment and precise meshing of the gear teeth are essential for optimal efficiency. Misalignment or incorrect gear meshing can lead to increased friction, noise, and power losses.
  • Bearing Friction: The efficiency of a gear system is influenced by the friction in the bearings supporting the gear shafts. High-quality bearings with low friction characteristics can contribute to improved gear efficiency.
  • Load Distribution: Uneven load distribution across the gear teeth can result in localized power losses and reduced efficiency. Proper design and gear system configuration should ensure even load distribution.

Interpreting Gear Efficiency:

The calculated gear efficiency indicates the percentage of input power that is effectively transmitted to the output. For example, if a gear system has an efficiency of 90%, it means that 90% of the input power is converted into useful output power, while the remaining 10% is lost as various forms of power dissipation.

It’s important to note that gear efficiency is not constant and can vary with operating conditions, lubrication quality, gear wear, and other factors. The calculated efficiency serves as an estimate and can be influenced by specific system characteristics and design choices.

By considering the factors affecting gear efficiency and implementing proper design, lubrication, and maintenance practices, gear efficiency can be optimized to enhance overall gear system performance and minimize power losses.

spur gear

Are spur gears suitable for high-torque applications?

Spur gears are commonly used in a wide range of applications, including those involving high-torque requirements. However, their suitability for high-torque applications depends on various factors. Here’s a detailed explanation:

Spur gears are designed to transmit power and torque between parallel shafts. They have straight teeth that engage fully, providing efficient power transfer. The suitability of spur gears for high-torque applications can be evaluated based on the following considerations:

  • Load Distribution: Spur gears distribute the transmitted load over a larger contact area compared to other gear types. This characteristic allows them to handle higher torque loads effectively.
  • Size and Diameter: The size and diameter of the spur gears play a crucial role in their ability to handle high torque. Larger gear diameters provide increased torque capacity due to the longer lever arm and larger contact area between the gear teeth.
  • Material Selection: Choosing the appropriate material for the spur gears is essential for high-torque applications. Strong and durable materials, such as hardened steel or alloy steels, are commonly used to ensure the gears can withstand the high stresses and torque loads without deformation or failure.
  • Gear Design: Proper gear design considerations, such as tooth profile, module or pitch, and the number of teeth, can impact the torque-carrying capacity of spur gears. Design parameters should be optimized to ensure sufficient tooth strength and minimize the risk of tooth breakage or excessive wear.
  • Lubrication and Maintenance: Adequate lubrication is critical for reducing friction, wear, and heat generation in high-torque spur gear applications. Regular maintenance, including lubricant replacement and gear inspections, can help identify and address any issues that may affect the gear’s torque-handling capabilities.
  • Supporting Components: The overall system design, including the selection of bearings, shafts, and housing, should be considered to ensure proper support and alignment of the spur gears. Well-designed supporting components contribute to the overall torque capacity of the system.

While spur gears can handle high torque, it’s important to note that there are limitations to their torque capacity. Factors such as gear size, material strength, tooth design, and operating conditions can affect the maximum torque the gears can safely transmit without failure.

In some cases, other gear types such as helical gears or bevel gears may be more suitable for specific high-torque applications. These gears offer advantages such as increased load-carrying capacity, improved torque transfer efficiency, and reduced noise and vibration levels.

Ultimately, the suitability of spur gears for high-torque applications should be evaluated based on the specific requirements, operating conditions, and industry standards applicable to the particular application.

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 wholesaler 4.5L/5.9L/8.9L Engine Gear Large Diameter High Precision OEM Gear manufacturer China wholesaler 4.5L/5.9L/8.9L Engine Gear Large Diameter High Precision OEM Gear manufacturer
editor by CX 2024-01-08