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大功率的齿轮付通常由大的直齿轮或斜齿轮组成,它们在各种重载传动系统中驱动着笨重的机器。例如在建筑业上用于拉铲挖土机、电动起重机和挖土机,应用在采矿业上有大型磨矿机,固定式挤压机和粉磨设备,在钢铁工业上用来驱动轧机等。 这些大型齿轮可采用三种方法制造——锻造、组装或铸造。各种方法都各有其优点和局限性,在一定的场合,某一种方法比另一种方法更好。例如,铸造法可制造2至40英尺（0.6至12m）的齿轮,组合式和锻造齿轮由于设计和加工的限制通常难以制造超过18英尺（5、5m）的齿轮。此外各种制造方法对形状、尺寸和金属成分都有不同的影响。 但是哪种制造方法更适合你的设计标准和使用要求呢?充分了解这些制造方法将帮助你回答这一问题。
High-power gear sets usually consist of large spur gears or helical gears that drive bulky machines in a variety of heavy-duty drivelines. For example, in the construction industry for dragline shovels, electric cranes and shovels, used in the mining industry are large grinding machines, fixed presses and grinding equipment, in the steel industry to drive the mill, etc. . These large gears can be manufactured in three ways - forging, assembling or casting. Each method has its own advantages and limitations, in a certain situation, a method is better than the other method. For example, the casting method can produce gears ranging from 2 to 40 feet (0.6 to 12 m), with combined and forged gears making it generally difficult to manufacture gears over 18 feet (5,5 m) due to design and machining constraints. In addition, various manufacturing methods have different effects on the shape, size and metal composition. But which manufacturing method is more suitable for your design standards and requirements? A full understanding of these manufacturing methods will help you to answer this question.