flat key

基本解释

A transmission shaft is driven by a flat key.
传动轴用平键传动。
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The inner part of a shaft end hole of the backstop is connected with a driven shaft through an expansion bush and a double flat key;
在逆止器的轴端孔内通过胀套和双平键与从动轴连接；
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Press fit buttons with other than centered round holes will use dowel locator for position or flat key. Dowel locators are preferred due to space requirements.
孔不在中心的压配合嵌套必须使用合销或扁平健固定其位置，因空间要求合销定位是首选。

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