Main press-cut roller adopt universal shaft driving, which is advanced in designing.
主要压切辊采用万向轴传动，传动设计先进。
Driving system consists of gear wheel, universal shaft couplings and the synchronous belt.
传动系统采用齿轮箱，万向轴联轴器，同步带相结合型式。
During its operation, the imported universal shaft of threaded drilling tools was fractured.
两螺杆钻具挠轴在运转过程中突然断裂。
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