| 摘要 |
A bicycle head assembly comprises an assembly seat; a bearing being installed in the assembly seat; an inner side of the bearing being rotatably installed with a stand tube of a bicycle; a washer formed by winding a substrate through several circles so as to have a form of a spring; thereby the washer being elastic and compressible; the washer being received into the assembly seat so as to position the bearing and thus the bearing is combined into the assembly seat. All cycles of the washer have a same diameter, or the washer has a tapered shape. The substrate is a flat and long substrate.
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