直线运动轴承由一个圆筒形外圈和多列钢球及保持架组成。
This type bearing consists of a sleeved outer ring, multi-row balls and a retainer.
根据滚动体排列情况，可以把这类轴承划分为单列、双列和多列。
The bearings are classified by elements as single row, double row and multiple row bearings.
根据滚动体排列情况，可以把这类轴承划分为单列、双列和多列。
The bearings are classified by elements as single row, double row and multiple row bearings.
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