Zhangjiagang Guangda Special Material Co., Ltd.
Leading manufacturer of advanced materials and products for high-end equipment
Add to Cart
Customized High Precision Internal Ring Gear For Planetary Gearbox
Wind turbine forgings for 42CrMo4 Chemical Composition
| Standard | Steel desination name | Number | C | Si | Mn | P | S | Cr | Mo | Ni |
| EN10083 | 42CrMo4 | 1.7225 | 0.38-0.45 | ≤0.4 | 0.60-0.90 | ≤0.025 | ≤0.035 | 0.90-1.20 | 0.15-0.30 | - |
| EN10083 | 42CrMoS4 | 1.7227 | 0.38-0.45 | ≤0.4 | 0.60-0.90 | ≤0.025 | 0.02-0.04 | 0.90-1.20 | 0.15-0.30 | - |
| Standard | Steel designation name | Number | C | Si | Mn | P | S | Cr | Mo | Ni |
| EN10250 | 42CrMo4 | 1.7225 | 0.38-0.45 | ≤0.4 | 0.60-0.90 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.30 | - |
Wind turbine forgings Precision gears specification
| 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
 | 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. |
Core advantage for the precision gears -Completed supply chain
| 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
Guangda is one of the leading gear manufacturers in China .We make various sizes of gears for different applications acoss multiple platforms . we have the experience and resources necessary to meet the demands of your business. You can count on our engineers and quality control teams to make the high-quality, custom gears you need.
We’re committed to exceeding your gear manufacturing technology needs from start to finish. Whether your project requires services such as full design, prototyping, pre-production and production of gears, Gear Motions has the expertise to handle every step of the gear manufacturing process to meet your needs.
All products are manufactured with the most advanced and modern equipment of PAMA,Gleason,Danobat,Kehren,Nicolas,Pierto carnaghi and efficient technical team with an emphasis on cost effective production.Guangda pursues excellence & innovation with tight quality control & the most advanced technology in the industry.
Guangda has deep and long cooperation with NGC ,Voith ,Flender and ZF for supplying the gear box parts . In Chinese market, Guangda wind turbine gear steel ranks first in China for the capacity, quality and market share .And Guangda is the largest supplier to the world's top three customers NGC,ZF and Siemens for the gear box parts.
Ring gear , gearbox ring gear , Annulus gearinner , annular gear , gear ring , inner gear ring
High quality excavator final drive parts ring gear
Ring gear for planetary gearbox
Customized High Precision Internal Ring Gear for Planetary Gearbox
Wind Power Internal Toothed Gear Ring