The contact ratio of the motor shaft taper surface is one of the significant factor for improving the quality of a motor.

电机转轴锥度面表面接触率是电机的一项重要质量指标。

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In fact besides cutting the taper surface, the small feeding carriage can be also used to finish hole and other round or compensate cylinder's taper error.

其实除了切削圆锥面以外，小滑板还可以用来精车内孔和外圆或实现圆柱锥度误差补偿。

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TAPER: any surface of any bearing part that is not the correct Angle or not to print.

锥度：任何轴承部件的表面角度不正确或者不符合图纸要求。

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In other words, it occupies roughly the same dimensions, but the taper on the back surface does a compelling job of making this feel thinner.

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While the top and bottom edges are straight, the sides gently taper from front to back, widening to a flat 7.8mm surface at the phone's thickest point.

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