Plates and panels
Closed Centrifugal Pump Impeller with Guide Shaft
- Bounding box
- 169.0 × 169.0 × 139.0 mm
- Engine
- Precision B-rep
- Parameters
- 16
- Published
- October 2, 2026
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The prompt
A 3D CAD model of a closed centrifugal pump impeller. Orient the model so the impeller body is at the bottom and the shaft points vertically upward. The bottom impeller section consists of two parallel circular shroud plates with an outer diameter of 169mm, a flat top shroud thickness (b) of 7mm, and an internal channel height of 9mm. Inside this 9mm gap, there are curved internal pump vanes (impeller blades) connecting the plates, creating open flow channels with an outlet width of 52mm. The bottom-most plate has a central suction eye inlet diameter of 41mm. Extending vertically upward from the top shroud plate is an integrated cylindrical guide shaft with an outer diameter (ds) of 68mm and a shaft height of 116mm, for a total height (H) of 139mm. Inside the hollow shaft (inner diameter di: 61mm) are 6 radial wedge-shaped splines reducing the inner clearance (dr) to 41mm, each 14mm wide at the wall and tapering to 2.5mm. Clean technical geometry for STEP
Parameters
| Name | Value | Range |
|---|---|---|
| Impeller outer diameter | 169 mm | 60 – 400 |
| Total height (H) | 139 mm | 40 – 400 |
| Top shroud thickness (b) | 7 mm | 2 – 25 |
| Internal channel height | 9 mm | 3 – 40 |
| Outlet channel width | 52 mm | 10 – 150 |
| Suction eye inlet diameter | 41 mm | 5 – 120 |
| Vane count | 6 pcs | 3 – 12 |
| Vane thickness | 5 mm | 1 – 15 |
| Vane sweep angle | 60 deg | 0 – 150 |
| Shaft outer diameter (ds) | 68 mm | 20 – 250 |
| Shaft height | 116 mm | 10 – 350 |
| Shaft inner bore (di) | 61 mm | 5 – 240 |
| Spline count | 6 pcs | 2 – 16 |
| Spline width at shaft wall | 14 mm | 2 – 40 |
| Spline width at inner tip | 2.5 mm | 0.5 – 20 |
| Inner clearance diameter (dr) | 41 mm | 5 – 200 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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