名词
中文翻译：滚轮外圈组件
同义词：
['roller assembly', 'roller gear assembly']
例句：
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1.The new car's roller assembly is a major improvement over the old one.
这款新车的滚轮组件比旧款有显著改进。
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2.The engineer carefully assembled the roller assembly before starting the machine.
工程师在启动机器之前，仔细组装了滚轮组件。
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3.The roller assembly is responsible for transmitting power and controlling the rotation of the wheel.
滚轮组件负责传递动力并控制车轮的旋转。