Zhangjiagang Guangda Special Material Co., Ltd.
| Payment Terms | D/P, L/C, D/A, T/T |
| Delivery Time | 15-45 work days |
| Product name | Large Module Gear Ring |
| Material | 18CrNiMo7-6,17CrNiMo6,18CrNiMo7 etc |
| Diameter | max 5000mm |
| max module | 40 |
| Supply condition | rough material ,semi-finished ,finished machining |
| Type | Forging |
| Brand Name | Guangda |
| Certification | DNV, BV, Rina, ISO, GL, ABS, LR ,CCS ,PED |
| Place of Origin | Jiangsu China |
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Product Specification
| Payment Terms | D/P, L/C, D/A, T/T | Delivery Time | 15-45 work days |
| Product name | Large Module Gear Ring | Material | 18CrNiMo7-6,17CrNiMo6,18CrNiMo7 etc |
| Diameter | max 5000mm | max module | 40 |
| Supply condition | rough material ,semi-finished ,finished machining | Type | Forging |
| Brand Name | Guangda | Certification | DNV, BV, Rina, ISO, GL, ABS, LR ,CCS ,PED |
| Place of Origin | Jiangsu China | ||
| High Light | Spiral Bevel Precision Gears ，Spiral Bevel Gear 5000mm ，Cylindrical Spiral Bevel Gear | ||
CNC Machining High Precision Hardening Heat Treatment Gears
Induction hardening is commonly used in the heat treatment of gears. Induction heating is a process which uses alternating current to heat the surface of a gear tooth. The area is then quenched resulting in an increase in hardness in the heated area. It is typically accomplished in a relatively short period of time.
Different heat treating processes’ as well as the materials being treated, impart particular qualities. Heat treatment is a critical and complex element in the manufacturing of gears that greatly impacts how each will perform in transmitting power or carrying motion to other components in an assembly. Heat treatments optimize the performance and extend the life of gears in service by altering their chemical, metallurgical, and physical properties. These properties are determined by considering the gear’s geometry, power transmission requirements, stresses at different points within a gear under load, load cycling rates, material type, mating part designs, and other operating conditions.
Precision gears specification we could provide
| External Gears and external splines | ||||
| Milling | Hobbing | Shaping | Tooth grinding | |
| Max O.D | 5000mm | 1200mm | 2000mm | 5000mm |
| Max face width | 2200mm | 1600mm | 1100mm | 2200mm |
| Max module | M35 | M35 | M24 | M40 |
| AGMA leval/DIN leval | DIN3962 CLASS 7 | DIN3962 CLASS 7 | DIN3962 CLASS 8 | DIN3962 CLASS 3 |
| Tooth surface finishing | Ra3.2 | Ra3.2 | Ra3.2 | Ra0.4 |
| Max helix angle | +30°/-45° | ±45° | 0° | ±45° |
| Internal gears and internal splines | |||
| Milling | Shaping | Tooth grinding | |
| Max O.D. | 5000mm | 2400mm | 5000mm |
| Max Face Width | 2200mm | 1100mm | 2200mm |
| Max module | M35 | M24 | M35 |
| AGMA leval/DIN leval | DIN3962 CLASS 8 | DIN3962 CLASS 8 | DIN3962 CLASS 4 |
| Tooth Surface finishing | Ra3.2 | Ra3.2 | Ra0.4 |
| Max helix angle | +30°/-45° | 0° | ±45° |
Precision gears types we could provide
| | Planetary Gear Planetary gears, also called epicyclic gear trains, are used in complex applications that require smooth torque transmission, such as drivetrains and automotive transmissions. The spur gear used by planetary gears is called a “sun spur,” which is surrounded by three-plus exterior gears called planet gears |
| | Internal Gear Planetary gears, also called epicyclic gear trains, are used in complex applications that require smooth torque transmission, such as drivetrains and automotive transmissions. The spur gear used by planetary gears is called a “sun spur,” which is surrounded by three-plus exterior gears called planet gears |
| | Spur Gear The spur gear, also called a straight-cut gear, is the simplest type of gear available. Straight-sided along the gear wheel’s axis, with straight teeth in line with the axis. Other types of spur gears transmit motion and torque laterally through compatibility with other parallel aligned gears. Such gears are main components in planetary gears. |
| | Spline Gear Spline gears are either cylindrical or rod-shaped with straight teeth that allow them to transmit motion laterally by fitting inside internal devices or gears. |
| | Helical Gear Helical gears are fast rotating gears capable of supporting heavy loads efficiently and smoothly. They feature teeth inclined towards the axis of the shaft and positioned like a helix, thus the name. Quieter than many other gears, including spur gears, helical gears are popular with applications that feature both radial loads and thrust loads. |
| | Double helical gear Double helical gears are a type of helical gear that has two helical faces next to each other with a gap between them. The helix angles on each face are identical but opposing. The use of a twin helical gear set lowers thrust loads and allows for even more tooth overlap and smoother operation. |
Guangda Core advantage for the precision gears
Comparing with companies who only make the material , we directly face the end customers and better understand customer's demand. Compared with comapanies who only do the processing, we can accurately control the quality of materials to meet the technical requirements of customers. In this way we could provide a holistic solution and control the cost of the whole process, meet the delivery time, and resist market risks.
| Smelting | Smelting capacity 500,000.00 ton/year . With own smeliting line of carbon steel,stainless steel, alloy steel and special steel . |
| Forging | Forging capacity 300,000.00 ton/year . With own professinal forging press machines 5000ton,4500ton,4000ton,3600ton,2000ton,1000ton and ring rolling mill machines and could manufacture the forging blank ourselves. |
| Rough machining | Turning, milling, boring different kinds of the rough machining equipment more than 100 sets |
| Precision machining | With the most advanced and modern equipment of PAMA ,Gleason ,Danobat,Kehren, Nicolas,Pierto carnaghi of precision machining including gear shaping ,gear hobbing, gear grinding etc. |
| Heat treatment line | With own professional equipment for heat treatment for Annealing ,Normalizing ,Tempering ,QT, Isothermal annealing,Stress relief , Nitriding , Carburize ,Case-hardening etc |
| Surface treatment | Advanced coating facilities such as high-pressure cleaning, sand blasting and thermal spraying. Complete surface treatment capability. |
| Inspection | UT,MT, With Gleason gear measuring instrument and Hexagon three coordinate detector |
About Guangda for the gears manufacturing
1. Professional manufactuer for the gears with efficient technical team with an emphasis on cost effective production.
2. Guangda has material line and machining line could provide gear blanks and finished gears .
3. Customerized and one-stop to meet customer's requirements, provide the overall solution to customers .
4. More than 100 sets of professional gear machining equipment including PAMA,Gleason,Danobat,
Kehren,Nicolas,Pierto carnaghi of the most advanced equipment in the world.
5. More than 70 sets of the gear heat treatment equioments including the nitriding ,tempering and carbonization for the gears .
6. Guangda is the largest supplier to the world's top three customers NGC,ZF and Siemens for the gear box parts.
7. In Chinese market, Guangda wind turbine gear steel ranks first in China for the capacity, quality and market share.
Cylindrical Gear
Spiral Bevel Gear Manufacturers
Gear Manufacturing Company
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
0.4 billion-0.6 billion
Employee Number:
1800~2500
Ecer Certification：
Site Member
Zhangjiagang Guangda Special Material Co.,Ltd was established in 2003. We located in Jiangsu Province beside Shanghai. Act as the high-tech enterprises with high-quality special alloy materials as the core business belong to the "advanced iron and steel materials" industry under the ... Zhangjiagang Guangda Special Material Co.,Ltd was established in 2003. We located in Jiangsu Province beside Shanghai. Act as the high-tech enterprises with high-quality special alloy materials as the core business belong to the "advanced iron and steel materials" industry under the ...
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