Seal air is injected into the labyrinth seals located at the main motor shaft (top and bottom) and at the pinion shaft driving the motor.

密封空气被注入到主马达轴（顶部和下部）和驱动马达的齿轮轴的迷宫式密封里。

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Small-scale fertilizer granulator is mainly composed by motor, making grains disc, gearbox, underbed, main shaft bearing, regulate device and rotational speed test system, etc.

小型肥料制粒机主要由电动机、制粒圆盘、变速箱、底架、主轴轴承、调节装置和转速测试系统等组成。

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With measures adopted to adjust entrance taper, open of air door, and alignment of the shaft coupling between blower and motor, the main exhaust blower can keep in steady operation.

通过调整入口锥、风门开度、主抽风机与电机之间的联轴器对中等措施，保证了主抽风机稳定运行。

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