轧机上使金属产生连续塑性变形的主要工作部件和工具。轧辊主要由辊身、辊颈和轴头3部分组成。辊身是实际参与轧制金属的轧辊中间部分。它具有光滑的圆柱形或带轧槽的表面。辊颈安装在轴承中，并通过轴承座和压下装置把轧制力传给机架。传动端轴头通过连接轴与齿轮座相连，将电动机的转动力矩传递给轧辊。轧辊在轧机机架中可呈二辊、三辊、四辊或多辊形式排列。

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The main working components and tools on the mill that produce continuous plastic deformation of the metal. The roll is mainly composed of a roll body, a roll neck and a shaft head. The roll body is the middle part of the roll that actually participates in the rolling of the metal. It has a smooth cylindrical or grooved surface. The roll neck is mounted in the bearing and the rolling force is transmitted to the frame through the bearing housing and the pressing device. The transmission end shaft head is connected to the gear base through the connecting shaft, and transmits the rotational torque of the motor to the roller. The rolls can be arranged in the form of two rolls, three rolls, four rolls or multiple rolls in the rolling mill stand.