Flange with Spigot

Part A: Flange with Spigot Axis convention for every part: the shaft axis lies along X, Y is up, and the origin is at the centre of the joint face of the flanges. The keyway is always on the +Y side. Keeping the same convention in every part makes the assembly and the drawing views fall into place automatically. Step 1 — Revolved body New Part: File → New → Part → OK. Set units to MMGS. Sketch on the Front Plane a horizontal centre line along the X axis and the closed half-profile through the points (−60, 20), (−60, 40), (−20, 40), (−20, 70), (−40, 70), (−40, 80), (0, 80), (0, 30), (5, 30), (5, 20). This one profile gives the hub, the flange, the protecting rim and the spigot. Revolved Boss/Base 360° about the centre line. Step 2 — Bolt holes Sketch on the joint face (x = 0) one circle ⌀11 with its centre on the +Y axis at a distance of 60 from the origin (PCD ⌀120). Extruded Cut: Through All, direction into the flange. Circular Pattern of the cut: axis = the temporary axis of the bore (View → Temporary Axes), 4 instances, equal spacing 360°. Using a pattern feature lets you place all the bolts later with one Pattern Driven Component Pattern. Step 3 — Keyway in the hub Sketch on the hub end face (x = −60) a rectangle 12 wide, centred on the Y axis, from the bore (y = 20) up to y = 23.3. Extruded Cut: Through All. The keyway runs through the full bore, including the spigot. Step 4 — Finishing features Chamfer 1 mm × 45° on both edges of the bore and on the outer edges of the rim. Fillet R3 at the junction of hub and flange on the back face (optional, as cast). Edit Material: Gray Cast Iron (closest library equivalent of FG 200).

Parameters

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