内花键套 internal splined sleeve ; inner splined sleeve
内花键螺钉 inner spline screw
矩形内花键 Straight-sided internal spline
内花键轴套 [动力] internal splined shaft bushing
齿形内花键 tooth internal spline
内六角和内花键螺钉 Socket Screws
内花键啮合 internal spline coupling
内花键区段 internal spline portion
蜗轮内花键 Worm wheel inner spline
内花键：在圆柱体的孔的内表面形成的花键。
Internal spline is a spline formed on the inner surface of a cylinder.
它是外花键的齿根圆，和内花键的内圆(齿顶圆)。
It is the root circle of the external spline or the inside circle (tooth tip circle) of the internal spline.
它是外花键的外圆(齿顶圆)，和内花键的齿根圆。
It is the outside circle (tooth tip circle) of the external spline or the root circle of the internal spline.
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