# Jaw coupling A clamping jaw shaft coupling: two hubs and a spacer, three solids. Axis along Z, the first hub's end face on the XY plane, bore d1 in the first hub and bore d2 in the second. ## Source MISUMI Couplings catalogue, *Jaw Couplings, Clamping*, CPJC table, , PDF page 20: outside diameter D, length L, hub length l, spacer B, gap C, clamp screw positions F and G, screw M, and the bores offered on each size. Only bore pairs from one size's list are offered, so 3 to 10 mm isn't a part here, because no size offers both. **Proportions, for looks only:** the jaws' width and inner radius, the spacer's shape and the slit's width. The clamp screws themselves aren't modelled, only their holes at nominal M. The spacer shown is the red, Shore A 98 one (table: blue A 80, white A 92, red A 98, polyurethane). MISUMI's 40 mm size has a different hub and isn't here.