This paper is focused on the account of parameter test and measurement of combining old machines with new ones of subulate gear and appearance size measurement.

• 对直齿锥齿轮的以旧配新的参数测算和外形尺寸测定进行了论述,结合实际给出了某些参数的多种测算方法,使测算结果更接近实物尺寸。