Front sprocket assembly for human-powered vehicle
A front sprocket assembly includes a first sprocket and a second sprocket. The second sprocket includes a second sprocket body and a plurality of second sprocket teeth. At least one tooth of the plurality of second sprocket teeth includes a less chain interference groove disposed to the second axial...
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Sprache: | chi ; eng |
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Zusammenfassung: | A front sprocket assembly includes a first sprocket and a second sprocket. The second sprocket includes a second sprocket body and a plurality of second sprocket teeth. At least one tooth of the plurality of second sprocket teeth includes a less chain interference groove disposed to the second axially inward facing surface. The less chain interference groove is configured to reduce interference between at least one of the plurality of second sprocket teeth and the chain in an upshift operation in which the chain is shifted from the first sprocket to the second sprocket. The less chain interference groove has a radially innermost end positioned radially inward from an undercut circle of the plurality of second sprocket teeth. A radial distance radially defined from the root circle to the radially innermost end with respect to the rotational center axis is equal to or greater than 1.0 mm.
一种前链轮组件,包括第一链轮和第二链轮。第二链轮包括第二链轮体和多个第二链轮齿。多个第二链轮齿中的至少一个齿包括设置至第二轴向向内面向表面的较少链干涉凹槽。较少链干涉凹槽构造为在链条从第一链轮向第二链轮换挡的升挡操作中,减少多个第二链轮齿中的至少一 |
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