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Product Description

CITICIC is the casting & forging center in central-south China, possessing 50t electric arc furnace, 60t LF ladle refining furnace, and 60t VD/VOD refining furnace, etc. We can pour 350t liquid steel 1 time and yields more than 200,000t of high quality liquid steel and can produce the high quality steel of more than 260 steel grades such as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. The maximum weight of casting, gray casting, graphite cast iron and non-ferrous casting is 200t, 30t, 20t and 205t separately.

 

Features:

Module Range: 10 Module to 70 Module.

Diameter: Min 800mm to16000 mm.

Weight: Max 120 MT single piece.

Three different designs: Fabricated steel – forged ring – rolled plate

Standards / Certificates: • CHINAMFG EN ISO • AWS • ASTM • ASME • DIN

 

 

Advantages:

– Products with Customers’ Designs

– Strong Machining & Heat Treatment Abilities

– Strict Quality Control

– Prompt Delivery

– Experience in Cooperation with Fortune 500 Companies

 

Process:

Forging / Casting

Normalizing & Tempering-Proof Machining

Quenching & Tempering

Finish Machining (Teeth Grinding)

 

 

We can offer you in various process conditions solutions for Many End Markets and Applications

–Mining

–Metallurgy

–Power Generation

–Sugar

–Cement Plant

–Port Machinery

–Oil and natural

–Papermaking

–OEM gear case

–General Industrial

 

 

Specifications Of Gear:

No.

Item

Description

1

Diameter

≤15m

2

Module

≤45

3

Material

Cast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel

4

Structure From

Integrated, Half to Half, Four Pieces and More Pieces

     

5

Heat Treatment

Quenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering

     

6

Tooth Form

Annular Gear, Outer Gear Ring

7

Standard

ISO, EN, DIN, AISI, ASTM, JIS, IS, GB

 

Inspection And Test Outline Of Girth Gear:

No.

Item

Inspection Area

Acceptance Criteria

Inspection Stage

Certificates

1

Chemical 
Composition

Sample

Material Requirement

When Smelting
After Heat Treatment

Chemical Composition 
Report

2

Mechanical
Properties

Sample (Test Bar on the Gear Body)

Technical Requirement

After Heat Treatment

Mechanical Properties 
Report

3

Heat 
Treatment

Whole Body

Manufacturing Standard

During Heat Treatment

Heat Treatment Report
Curves of Heat 
Treatment

4

Hardness 
Test

Tooth Surface, 3 Points Per 90°

Technical Requirement

After Heat Treatment

Hardness Teat Report

After Semi Finish 
Machining

         

5

Dimension 
Inspection

Whole Body

Drawing

After Semi Finish

Machining

Dimension Inspection 
Report

Finish Machining

         

6

Magnetic Power Test (MT)

Tooth Surface

Agreed Standard

After Finish Gear 
Hobbing

MT Report

7

UT

Spokes Parts

Agreed Standard

After Rough Machining

UT Report

After Welded

         

After Semi Finish 
Machining

         

8

PT

Defect Area

No Defect Indicated

After Digging
After Welded

PT Record

9

Mark Inspection

Whole Body

Manufacturing Standard

Final Inspection

Pictures

10

Appearance Inspection

Whole Body

CIC’s Requirement

Before Packing (Final Inspection)

 

11

Anti-rust 
Inspection

Whole Body

Agreed Anti-rust Agent

Before Packing

Pictures

12

Packing 
Inspection

Whole Body

Agreed Packing Form

During Packing

Pictures

 

Facilities For Manufacturing Gear Ring:

No

Item

Description

1

Smelting & Casting Capability

40t, 50t, 80t Series AC Electric Arc Furnace
2×150t, 60t LF Ladle Refining Furnace
150t, 60t Series VD / VOD Furnace
20×18m Large Pouring Facility

We can pour 900t refining liquid steel 1 time, and achieve vacuum poured 600t steel ingots.

We can produce the high quality steel of more than 260 steel grades as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. 

The maximum weight of casting steel, gray casting, graphite cast iron and non-ferrous casting is 600t, 200t, 150t and 20t separately.

2

Forging Capability

The only 1 in the word, the most technologically advanced and the largest 
specification18500t Oil Press, equipped with 750t.m forging operation machine
8400t Water Press
3150t Water Press
1600t Water Press
Φ5m High Precision Ring Mill (Germany)
Φ12m High Precision Ring Mil
We can roll rings of different sections of carbon steel, alloy steel, high temperature alloy steel and non-ferrous alloys such as copper alloy, aluminum alloy and titanium alloy. 
Max. Diameter of rolled ring will be 12m.

3

Heat Treatment Capability

9×9×15m, 8×8×12m, 6×6×15m, 15×16×6.5m, 16×20×6m, 7×7×17m Series Heat CHINAMFG and Heat Treatment Furnaces

φ2.0×30m, φ3.0×5.0m Series Heat Treatment Furnaces
φ5.0×2.5m, φ3.2×1.5m, φ3.0×5.0m, φ2.0×5m Series Carburizing Furnaces &
Nitriding Furnaces & Quenching Bathes
φ2.0×30m Well Type CNC Electrical Furnaces
Φ3.0×5.0M Horizontal Gas Temperature-differential Furnace
Double-frequency and Double-position Quenching Lathe of Pinion Shaft

4

Machining Capability

1. ≥5m CNC Heavy Duty Vertical Lathes

12m CNC Double-column Vertical Lathe
10m CNC Double-column Vertical Lathe
10m CNC Single-column Vertical Lathe
6.3m Heavy Duty Vertical Lathe
5m CNC Heavy Duty Vertical Lathe

 

2. ≥5m Vertical Gear Hobbing Machines
15m CNC Vertical Gear Hobbing Machine
10m Gear Hobbing Machine
8m Gear Hobbing Machine
5m Gear Hobbing Machine
3m Gear Hobbing Machining

 

3. Imported High-precision Gear Grinding Machines
0.8m~3.5m CNC Molding Gear Grinding Machines

 

4. Large Boring & Milling Machines
220 CNC Floor-mounted Boring & Milling Machine
200 CNC Floor-mounted Boring & Milling Machine
160 CNC Floor-mounted Boring & Milling Machine

 

Application: Industry
Hardness: According to Customers′ Requirements
Gear Position: External Gear
Manufacturing Method: Cast Gear
Toothed Portion Shape: Spur Gear
Material: Cast Steel
Customization:
Available

|

Customized Request

spur gear

What are the environmental considerations when using spur gears?

When using spur gears, there are several environmental considerations to keep in mind. Here’s a detailed explanation:

1. Lubrication:

Proper lubrication is essential for the efficient and reliable operation of spur gears. However, the choice of lubricant can have environmental implications. It is important to select lubricants that are environmentally friendly, such as biodegradable or non-toxic lubricants. These lubricants minimize the risk of contaminating soil, water, or air during gear operation or maintenance.

2. Material Selection:

The choice of gear materials can also have environmental implications. Opting for materials that are recyclable or made from recycled content can reduce the environmental impact associated with gear production and end-of-life disposal. Additionally, selecting materials with low toxicity and minimal environmental harm during their lifecycle is important for sustainable gear manufacturing.

3. Energy Efficiency:

Efficient gear design and operation contribute to energy conservation and decreased environmental impact. By optimizing gear design, tooth profiles, and lubrication, it is possible to minimize power losses and increase overall gear system efficiency. This, in turn, reduces energy consumption and the associated environmental footprint.

4. Noise and Vibration:

Spur gears can generate noise and vibration during operation, which can have environmental implications, especially in noise-sensitive or residential areas. Implementing noise reduction measures such as gear tooth profiling, proper lubrication, and noise dampening techniques can help minimize the environmental impact of gear-induced noise and vibration.

5. Maintenance and End-of-Life Disposal:

Proper maintenance practices play a crucial role in minimizing the environmental impact of spur gears. Regular inspection, cleaning, and lubrication can prolong gear life, reduce the need for replacements, and minimize waste generation. Additionally, when spur gears reach the end of their life cycle, it is important to dispose of them responsibly, considering recycling options and proper waste management practices.

6. Environmental Regulations and Compliance:

When using spur gears, it is crucial to stay informed about relevant environmental regulations and standards. Different regions or industries may have specific requirements regarding lubricants, materials, noise emissions, or waste disposal. Adhering to these regulations ensures compliance and minimizes the environmental impact of gear usage.

7. Life Cycle Assessment (LCA):

Conducting a life cycle assessment of spur gears helps evaluate their overall environmental impact. LCA considers the environmental implications of gear production, use, maintenance, and disposal. It provides insights into potential environmental hotspots, allowing for targeted improvements in gear design, material selection, and operational practices.

By considering these environmental considerations and adopting sustainable practices throughout the life cycle of spur gears, it is possible to minimize their environmental impact and promote more environmentally friendly gear systems.

spur gear

How do you prevent backlash and gear play in a spur gear mechanism?

Preventing backlash and gear play is crucial for maintaining the accuracy, efficiency, and smooth operation of a spur gear mechanism. Here’s a detailed explanation of how to prevent backlash and gear play in a spur gear mechanism:

  • Precision Gear Design: Ensure that the spur gears used in the mechanism are designed with precision and manufactured to tight tolerances. Accurate tooth profiles, proper tooth spacing, and correct gear meshing are essential to minimize backlash and gear play.
  • Adequate Gear Tooth Contact: Optimize the gear meshing by ensuring sufficient tooth contact between the mating gears. This can be achieved by adjusting the center distance between the gears, selecting appropriate gear module or pitch, and ensuring proper gear alignment.
  • Proper Gear Engagement Sequence: In multi-gear systems, ensure that the gears engage in a proper sequence to minimize backlash. This can be achieved by using idler gears or arranging the gears in a way that ensures sequential engagement, reducing the overall amount of play in the system.
  • Backlash Compensation: Implement backlash compensation techniques such as preloading or using anti-backlash devices. Preloading involves applying a slight tension or compression force on the gears to minimize the free movement between the gear teeth. Anti-backlash devices, such as split gears or spring-loaded mechanisms, can also be used to reduce or eliminate backlash.
  • Accurate Gear Alignment: Proper alignment of the gears is critical to minimize gear play. Ensure that the gears are aligned concentrically and parallel to their respective shafts. Misalignment can result in increased backlash and gear play.
  • High-Quality Bearings: Use high-quality bearings that provide precise support and minimize axial and radial play. Proper bearing selection and installation can significantly reduce gear play and improve the overall performance of the gear mechanism.
  • Appropriate Lubrication: Ensure that the gears are properly lubricated with the correct type and amount of lubricant. Adequate lubrication reduces friction and wear, helping to maintain gear meshing accuracy and minimize backlash.
  • Maintain Proper Gear Clearances: Check and maintain the appropriate clearances between the gears and other components in the gear mechanism. Excessive clearances can lead to increased gear play and backlash. Regular inspections and adjustments are necessary to ensure optimal clearances.
  • Regular Maintenance: Implement a regular maintenance schedule to inspect, clean, and lubricate the gear mechanism. This helps identify and rectify any issues that may contribute to backlash or gear play, ensuring the gear system operates at its best performance.

By following these practices, it is possible to minimize backlash and gear play in a spur gear mechanism, resulting in improved precision, efficiency, and reliability of the system.

It’s important to note that the specific techniques and approaches to prevent backlash and gear play may vary depending on the application, gear type, and design requirements. Consulting with gear manufacturers or specialists can provide further guidance on addressing backlash and gear play in specific gear mechanisms.

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 Standard Factory Supplies High Precision Steel Spur Pinion Gear hypoid bevel gearChina Standard Factory Supplies High Precision Steel Spur Pinion Gear hypoid bevel gear
editor by CX 2023-09-28

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