Product Description

High Precision Steel Hubless Small Module Spur Gear With No Hub

The precision of CHINAMFG gear grinding precision gear can reach 5~6 levels. The corresponding dimensional accuracy can be achieved through precision gear grinding machine and grinder. It has the characteristics of stable transmission, low noise, long service life, and is suitable for high-power and heavy load.

Product Parameters

Product name Spur Gear & Helical Gear & Gear Shaft
Customized service OEM, drawings or samples customize
Materials Available Stainless Steel, Carbon Steel, S45C, SCM415, 20CrMoTi, 40Cr, Brass, SUS303/304, Bronze, Iron, Aluminum Alloy etc
Heat Treatment Quenching & Tempering, Carburizing & Quenching, High-frequency Hardening, Carbonitriding……
Surface Treatment Conditioning, Carburizing and Quenching,Tempering ,High frequency quenching, Tempering, Blackening, QPQ, Cr-plating, Zn-plating, Ni-plating, Electroplate, Passivation, Picking, Plolishing, Lon-plating, Chemical vapor deposition(CVD), Physical vapour deposition(PVD)…
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
Machining Process Gear Hobbing, Gear Milling, Gear Shaping, Gear Broaching, Gear Shaving, Gear Grinding and Gear Lapping
Applications Printing Equipment Industry, Laser Equipment Industry, Automated Assemblyline Industry, Woodening Industry, Packaging Equipment Industry, Logistics storage Machinery Industry, Robot Industry, Machine Tool Equipment Industry

Company Profile

Packaging & Shipping

FAQ

Main markets North America, South America,Eastern Europe,Weat 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!

 

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Automation Equipment
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Rolling Gear
Toothed Portion Shape: Spur Gear
Material: Cast Iron
Samples:
US$ 15/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

What lubrication is required for spur gears?

The lubrication requirements for spur gears are essential to ensure smooth operation, minimize wear, reduce friction, and dissipate heat. Here’s a detailed explanation of the lubrication needed for spur gears:

Spur gears typically require lubricants that possess specific characteristics to provide effective lubrication. These lubricants should have the following properties:

  • Viscosity: The lubricant should have the appropriate viscosity to create a sufficient lubricating film between the gear teeth. The viscosity should be suitable for the operating conditions, including the load, speed, and temperature. Higher loads and speeds generally require higher viscosity lubricants to maintain an adequate lubricating film.
  • Extreme Pressure (EP) Properties: Spur gears may experience high contact pressures and sliding friction, especially during heavy load conditions. Lubricants with EP additives are necessary to provide enhanced protection against wear and prevent metal-to-metal contact between the gear teeth. EP additives form a protective film on the gear surfaces, reducing friction and extending gear life.
  • Anti-Wear (AW) Properties: Lubricants for spur gears should have anti-wear properties to protect the gear teeth from excessive wear and surface damage. AW additives form a protective layer on the gear surfaces, reducing friction and preventing metal-to-metal contact. This helps prolong the gear life and maintain gear system efficiency.
  • Oxidation and Corrosion Resistance: The lubricant should possess good oxidation resistance to withstand high operating temperatures without deteriorating. It should also provide corrosion protection to prevent rust and corrosion on the gear surfaces, especially in environments with moisture or aggressive contaminants.
  • Compatibility: The lubricant should be compatible with the materials used in the gear system, including the gear material, shafts, and bearings. It should not cause any adverse reactions or damage to the gear components. Consult the gear manufacturer’s recommendations for lubricant compatibility.

The specific type and grade of lubricant needed for spur gears depend on the application, operating conditions, and gear material. Common lubricants used for spur gears include mineral oils, synthetic oils, and grease. Synthetic lubricants are often preferred for their superior performance in terms of viscosity stability, oxidation resistance, and temperature extremes.

When applying lubrication to spur gears, ensure that the lubricant is evenly distributed across the gear teeth. Proper lubrication can be achieved through methods such as oil bath lubrication, oil mist lubrication, or oil application directly onto the gear teeth. The lubrication interval and quantity should be based on the gear system’s operating conditions and the lubricant manufacturer’s recommendations.

Regular inspection and maintenance of the gear system are necessary to monitor the lubricant condition, replenish as needed, and ensure the gears remain properly lubricated throughout their service life.

It is important to consult the gear manufacturer’s guidelines and recommendations, as they may provide specific lubrication requirements and considerations for their gear products.

spur gear

What industries commonly use spur gears?

Spur gears find wide applications across various industries due to their simplicity, efficiency, and versatility. Here’s a detailed explanation of the industries that commonly use spur gears:

  • Automotive Industry: The automotive industry extensively utilizes spur gears in various components and systems. They are commonly found in gearboxes, differentials, transmission systems, and engine timing mechanisms. Spur gears play a crucial role in transferring power and rotational motion between the engine, wheels, and other drivetrain components.
  • Machinery and Manufacturing: Spur gears are widely employed in machinery and manufacturing equipment across different sectors. They are used in conveyor systems, machine tools, printing presses, textile machinery, packaging machinery, and a variety of industrial applications. Spur gears facilitate power transmission and motion control in these systems.
  • Power Generation: Spur gears are essential in power generation systems such as wind turbines, hydroelectric turbines, and steam turbines. They are used to transmit power from the rotor to the generator, converting the rotational motion of the turbine blades into electricity. Spur gears enable efficient power transfer in these renewable energy systems.
  • Robotics and Automation: Spur gears have significant applications in robotics and automation systems. They are used in robotic joints, actuators, and drive systems to control motion and transmit torque accurately and efficiently. Spur gears enable precise movement and force transmission in robotic applications.
  • Aerospace and Aviation: The aerospace and aviation industries utilize spur gears in various applications. They can be found in aircraft landing gear systems, engine components, flight control systems, auxiliary power units (APUs), and other critical equipment. Spur gears play a vital role in transmitting power and controlling movement in these aerospace systems.
  • Marine and Shipbuilding: Spur gears are commonly used in the marine and shipbuilding industry. They find applications in propulsion systems, winches, steering mechanisms, and other equipment that require torque transmission and speed control. Spur gears enable efficient power transfer and maneuverability in marine vessels.
  • Appliances and Household Equipment: Spur gears are present in numerous household appliances and equipment. They are used in washing machines, dishwashers, mixers, food processors, garage door openers, and many other appliances that require rotational motion and power transmission. Spur gears facilitate the efficient operation of these household devices.
  • Power Tools: Spur gears are widely utilized in power tools such as drills, saws, grinders, and sanders. They enable the transmission of power from the motor to the tool’s cutting or grinding components, ensuring efficient and controlled operation. Spur gears contribute to the functionality and performance of power tools.
  • Medical Equipment: Spur gears are used in various medical devices and equipment. They can be found in imaging systems, surgical robots, medical pumps, and other applications that require precise motion control and torque transmission. Spur gears play a critical role in the functioning of medical equipment.
  • Clocks and Watches: Spur gears are a fundamental component in mechanical clocks and watches. They are responsible for accurate timekeeping by transferring rotational motion from the mainspring or oscillator to the hour, minute, and second hands. Spur gears have historical significance in timekeeping mechanisms.

These are just a few examples of the industries where spur gears are commonly used. Their simplicity, reliability, and efficiency make them a popular choice in a wide range of applications, enabling power transmission, motion control, and precise operation in diverse industrial sectors.

China Good quality High Precision Steel Hubless Small Module Spur Gear with No Hub gear cycleChina Good quality High Precision Steel Hubless Small Module Spur Gear with No Hub gear cycle
editor by CX 2023-11-08

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