采用主轴后轴承定位系统，避免主轴花键间隙造成晃动，制粒机主机电流平稳，延长压模压辊使用寿命。
The position system by back bearings of main shaft is adopted to prevent vibration caused by spline and ensures current of main motor stable and extends service life of rollers and dies.
这使得他们的最佳非-定位轴承。
阀盖轴承和整体阀座轴承引导阀杆总成，实现与阀座的精确定位。
A cover bearing and integral seat bearing guide the stem assembly for precise alignment with the seat.
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