分析链条和链轮啮合时，链轮和滚子的接触强度。
And analyze the contact strength of the roller and sprocket wheel while in meshing process.
我现在在一个朋友那里更换链条和链轮，其实在出发前就该换的，因为他们还是已经跑了11000英里的原装货。
I'm here at a friend's to replace my chain and sprockets, something I should have done before I left as it is the original chain with 11, 000 miles on it.
拆去凸轮轴固定螺栓，并拆去作为一个总成的链轮和链条。
Remove the camshaft retaining bolt and remove the sprockets and chain as an assembly.
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