Library › Hardware › Shaft adapter Ø5 to Ø8 × 20

Ø5 → Ø8 shaft adapter × 20 with two M3 grubs

Ø5 → Ø8 shaft adapter × 20 with two M3 grubs: puts a Ø8-bore flywheel (Ø80–150) on a Ø5 crankshaft

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

feature	bore
value_mm	5

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From the full sheet

Shaft adapter Ø5 to Ø8 × 20: every size, notes, mating features and sources. How does an 8 mm bore flywheel go on a 5 mm crankshaft?