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- 春城雨夜Lv 51 decade agoFavorite Answer
Pitch Circle Diameter
2007-08-08 13:56:44 補充:
這是指輪圈的"螺孔間徑"
可以參考下圖
http://us.geocities.com/obl5420/Image3.gif
2007-08-08 13:58:37 補充:
奇數螺孔跟偶數螺孔的PCD量測法不同
可以參考下圖
- 1 decade ago
輪圈的PCD
全名為 Pitch Circle Diameter
指的是輪胎中每個螺絲孔中心點所畫出來圓圈的直徑
最為常見的尺寸為 100mm 和 114.3mm
Source(s): http://en.wikipedia.org/wiki/Wheel_sizing
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