发明授权
US06729764B2 Metal bearing liner and axial flow fan motor provided with the same 有权
金属轴承衬套和轴流风机电机配备相同

Metal bearing liner and axial flow fan motor provided with the same
摘要:
A metal bearing liner is formed by deep drawing press process sequentially subjecting a progressive sheet material (roll material) to a plurality of press processes. This makes it possible to form a metal bearing liner by a press work instead of a cutting work that has been conventionally employed while maintaining a requisite accuracy such as roundness and cylindricality thereby remarkably reducing the manufacturing cost of the metal bearing line thereby.
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