This is a problem that can be difficult to solve with solid roller bearings.
这是一个问题，可能难以解决固体滚子轴承。
The analytic results show that, if the hollowness is controlled properly, the hollow roller will be preferable to corresponding solid roller.
分析结果表明，只要有效控制滚轮的空心度，空心滚轮将优于相应的实心滚轮。
Wingtone INDUSTRIAL CO., LTD. (hereinafter referred to as Wingtone) was established in 1980. It developed the solid roller as initial product, based on nut forming technology.
运通工业股份有限公司(以下简称：运通)成立于1980年，为一专门从事紧固件锻造生产之公司。
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