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Gemfan 40 mm 3-blade propeller (1.5 mm shaft, BetaFPV)

What are the dimensions of the Gemfan 40 mm 3-blade propeller (1.5 mm shaft, BetaFPV)? · Modern device · basis: Manufacturer specifications (BETAFPV)

Also called: Gemfan 40mm BetaFPV dimensions, Gemfan 40mm BetaFPV hub thickness, Gemfan 40mm BetaFPV bore, Gemfan 40mm BetaFPV weight, Gemfan 40mm BetaFPV shaft size, Gemfan 40mm BetaFPV specs, dimensiones hélice Gemfan 40mm BetaFPV, Gemfan 40mm BetaFPV Propeller Abmessungen, Cetus Pro props, BetaFPV 40mm prop

Exact dimensions. True size, with no printing tolerance added.

length
40 mm
width
40 mm

Notes

  • BetaFPV's Cetus Pro / 75 mm whoop prop; BetaFPV notes the hub was changed from three holes to one.
  • True size, no printing tolerance added. Only published numbers are used; anything not published is said so.

Gemfan 40 mm 3-blade propeller size chart

dimensionvalue
Diameter40 mm
Pitchnot published
Hub thicknessnot published
Bore / mount1.5 mm inner diameter, single hole
Weight1.94 g per set of 4 (2CW+2CCW)

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

BETAFPVGemfan 40mm 3-Blade Propellers (1.5mm Shaft)webPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

betafpv-gemfan-40mm-3-blade-1-5mm-swept-discSwept disc Ø40 mm, 1 mm reference (hub thickness not published), Ø1.5 mm bore — blades not modelledSTEP · STL
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
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Plain text: sheet.txt · JSON: /api/geometry?object=betafpv-gemfan-40mm-3-blade-1-5mm

Gemfan 40 mm 3-blade propeller (1.5 mm shaft, BetaFPV), isometric render of a generated part
Render of betafpv-gemfan-40mm-3-blade-1-5mm-swept-disc from the free STEP; not to scale.

Fits with

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APC 8x4E electric propeller203.2×203.2×8.89 mm★ 2 files
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APC 8x6E electric propeller203.2×203.2×9.91 mm★ 2 files
APC 9x4.5E electric propeller, isometric render of a generated part
APC 9x4.5E electric propeller228.6×228.6×9.65 mm★ 2 files
APC 9x6E electric propeller, isometric render of a generated part
APC 9x6E electric propeller228.6×228.6×9.91 mm★ 2 files

Questions

What shaft does the Gemfan 40 mm 3-blade propeller (1.5 mm shaft, BetaFPV) fit?

Bore/mount: 1.5 mm inner diameter, single hole.