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The construction of this ball bearing is similar to mounting two single row angular ball bearings back to back(DB).
这个球轴承结构越来越相似 ,两个单列角球轴承背对背(DB)的。
youdao
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The construction of this ball bearing is similar to mounting two single row angular ball bearings back to back(DB).
这个球轴承结构越来越相似 ,两个单列角球轴承背对背(DB)的。
youdao