Xem Studiomeasured geometry

Library › Hardware › Flywheels Ø100–Ø200 with hex-nut rim pockets

flywheel-120-m10-b8

Ø120 flywheel, 12 pockets for M10 hex nuts at R49.0 (one flat facing out), Ø8 hub with M3 grub, 9.9 thick rim; full set ≈ 124 g of nuts, +3.0 kg·cm²

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

OD120
nutM10
pockets12
pocket circle R49.0
rim thickness9.9
rim width22.0
hubØ20 / Ø22 × 13.9
bores3 / 5 / 8
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.
Set it up →

From the full sheet

Flywheels Ø100–Ø200 with hex-nut rim pockets: every size, notes, mating features and sources. How is a flywheel with hex nut pockets in the rim laid out?

Other sizes