It introduces the design software and standard adopted by Philadelphia Gear Company ( initiated as PGC) as well as the impact of overseas high -speed transmission technology and standards on domestic prod-ucts.Also it further presents the practice of design and manufacturing of high -speed gears and the application of American standard such as selection of material , tooth profile design , strength design and manufacturing .%简要介绍了美国费城齿轮公司的设计软件和标准，以及国外高速齿轮传动技术与标准规范对国内高速齿轮传动发展的影响；从材料选择、齿形设计、强度设计、制造等角度，介绍了设计制造高速齿轮方面的实践与美标等先进标准规范的应用。
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