Library › Hardware › Counterweighted crank discs, Ø5 bore, 10 to 30 mm stroke

cw-crank-disc-stroke30

counterweighted crank disc, 30 mm stroke (pin at 15.0), Ø5 bore, M3 grub, mass opposite the pin ≈ 50% of the con-rod+piston at the pin radius

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

filecw-crank-disc-stroke30
stroke30
pin offset15.0
disc Ø44
thickness6 / 10.8
envelope43 × 44
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

Counterweighted crank discs, Ø5 bore, 10 to 30 mm stroke: every size, notes, mating features and sources. How is a counterweighted crank disc shaped?

Other sizes