two-row ball bearing 双列球轴承
Single row angular contact ball bearing with two piece inner ring has complex construction, long design cycle, great difficulty in processing.
双半内圈四点接触球轴承结构复杂、设计周期长、加工难度大。
DAC series wheel bearing is a double row angular contact ball bearing incorporating an integral outer ring and two separable inner rings which is available with seals or without seals.
DAC系列轮毂轴承是由一个整体外圈和两个可分离内圈组成的双列角接触球轴承，有带密封圈和不带密封圈两种结构。
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。
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