机械概念是基于双滚珠轴承设计，并作为固体轴或空心轴直径共同轴版本。
Mechanical concept is based on a double ball bearing design, and is available as a solid-shaft or hollow-shaft version in common shaft diameters.
机械概念是基于双滚珠轴承设计，它是一种固态轴或空心轴直径共同轴版本。
The mechanical concept is based on a double ball bearing design, which is available as a solid-shaft or hollow-shaft version in common shaft diameters.
上下轴用滚珠轴承支承，同步齿形带传动。
The arm shaft shaft and hook shaft are supported by ball bearings.
上下轴用滚珠轴承支承，同步齿形带传动。
The arm shaft shaft and hook shaft are supported by ball bearings.
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